Sort warning options in c-family/c.opt.
In spite of the plea "Please try to keep this file in ASCII collating order" at the top of the file, the sorting of the entries for the various -Wfoo options had increased in entropy. This made it hard to correlate them against e.g. the list of options enabled by -Wall in the manual (see PR90463). This patch is at least a step in the right direction to restore order to the file. I confirmed that no lines were added or removed by these changes, and that the output of "gcc -Q --help=warnings" is unchanged both with or without -Wall added to the command. gcc/c-family/ChangeLog * c.opt: Improve sorting of warning options.
This commit is contained in:
Sandra Loosemore
parent
e2d1f8587c
commit
4666cbde5e
1 changed files with 244 additions and 244 deletions
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@ -303,6 +303,10 @@ Waddress
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C ObjC C++ ObjC++ Var(warn_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about suspicious uses of memory addresses.
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Waddress-of-packed-member
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C ObjC C++ ObjC++ Var(warn_address_of_packed_member) Init(1) Warning
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Warn when the address of packed member of struct or union is taken.
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Enum
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Name(warn_aligned_new_level) Type(int) UnknownError(argument %qs to %<-Waligned-new%> not recognized)
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@ -358,6 +362,10 @@ Wno-alloca-larger-than
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C ObjC C++ LTO ObjC++ Alias(Walloca-larger-than=,18446744073709551615EiB,none) Warning
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Disable Walloca-larger-than= warning. Equivalent to Walloca-larger-than=<SIZE_MAX> or larger.
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Warith-conversion
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C ObjC C++ ObjC++ Var(warn_arith_conv) Warning
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Warn if conversion of the result of arithmetic might change the value even though converting the operands cannot.
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Warray-bounds=
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LangEnabledBy(C ObjC C++ LTO ObjC++,Wall,1,0)
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; in common.opt
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@ -374,10 +382,6 @@ Warray-parameter=
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C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_array_parameter) IntegerRange(0, 2) LangEnabledBy(C ObjC C++ ObjC++,Wall, 2, 0) Warning
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Warn about mismatched declarations of array parameters and unsafe accesses to them.
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Wzero-length-bounds
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C ObjC C++ ObjC++ Var(warn_zero_length_bounds) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about accesses to interior zero-length array members.
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Wassign-intercept
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ObjC ObjC++ Var(warn_assign_intercept) Warning
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Warn whenever an Objective-C assignment is being intercepted by the garbage collector.
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@ -421,10 +425,6 @@ Wbool-operation
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C ObjC C++ ObjC++ Var(warn_bool_op) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about certain operations on boolean expressions.
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Wframe-address
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C ObjC C++ ObjC++ Var(warn_frame_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn when __builtin_frame_address or __builtin_return_address is used unsafely.
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Wbuiltin-declaration-mismatch
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C ObjC C++ ObjC++ Var(warn_builtin_declaration_mismatch) Init(1) Warning
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Warn when a built-in function is declared with the wrong signature.
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@ -534,6 +534,14 @@ Wchkp
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C ObjC C++ ObjC++ Warning WarnRemoved
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Removed in GCC 9. This switch has no effect.
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Wclass-conversion
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C++ ObjC++ Var(warn_class_conversion) Init(1) Warning
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Warn when a conversion function will never be called due to the type it converts to.
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Wclass-memaccess
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C++ ObjC++ Var(warn_class_memaccess) Warning LangEnabledBy(C++ ObjC++, Wall)
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Warn for unsafe raw memory writes to objects of class types.
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Wclobbered
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C ObjC C++ ObjC++ Var(warn_clobbered) Warning EnabledBy(Wextra)
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Warn about variables that might be changed by \"longjmp\" or \"vfork\".
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@ -650,6 +658,14 @@ Wdiv-by-zero
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C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warning
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Warn about compile-time integer division by zero.
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Wdouble-promotion
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C ObjC C++ ObjC++ Var(warn_double_promotion) Warning
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Warn about implicit conversions from \"float\" to \"double\".
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Wduplicate-decl-specifier
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C ObjC Var(warn_duplicate_decl_specifier) Warning LangEnabledBy(C ObjC,Wall)
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Warn when a declaration has duplicate const, volatile, restrict or _Atomic specifier.
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Wduplicated-branches
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C ObjC C++ ObjC++ Var(warn_duplicated_branches) Init(0) Warning
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Warn about duplicated branches in if-else statements.
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@ -662,6 +678,10 @@ Weffc++
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C++ ObjC++ Var(warn_ecpp) Warning
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Warn about violations of Effective C++ style rules.
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Welaborated-enum-base
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C++ ObjC++ Var(warn_elaborated_enum_base) Warning Init(1)
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Warn if an additional enum-base is used in an elaborated-type-specifier.
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Wempty-body
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C ObjC C++ ObjC++ Var(warn_empty_body) Warning EnabledBy(Wextra)
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Warn about an empty body in an if or else statement.
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@ -694,6 +714,10 @@ Wexceptions
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C++ ObjC++ Var(warn_exceptions) Init(1) Warning
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Warn when an exception handler is shadowed by another handler.
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Wexpansion-to-defined
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C ObjC C++ ObjC++ CPP(warn_expansion_to_defined) CppReason(CPP_W_EXPANSION_TO_DEFINED) Var(cpp_warn_expansion_to_defined) Init(0) Warning EnabledBy(Wextra || Wpedantic)
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Warn if \"defined\" is used outside #if.
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Wextra
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C ObjC C++ ObjC++ Warning
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; in common.opt
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@ -702,6 +726,11 @@ Wextra-semi
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C++ ObjC++ Var(warn_extra_semi) Warning
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Warn about semicolon after in-class function definition.
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Wflex-array-member-not-at-end
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C C++ Var(warn_flex_array_member_not_at_end) Warning
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Warn when a structure containing a C99 flexible array member as the last
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field is not at the end of another structure.
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Wfloat-conversion
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C ObjC C++ ObjC++ Var(warn_float_conversion) Warning LangEnabledBy(C ObjC C++ ObjC++,Wconversion)
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Warn for implicit type conversions that cause loss of floating point precision.
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@ -735,6 +764,11 @@ C ObjC C++ LTO ObjC++ Warning Alias(Wformat-overflow=, 1, 0) IntegerRange(0, 2)
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Warn about function calls with format strings that write past the end
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of the destination region. Same as -Wformat-overflow=1.
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Wformat-overflow=
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C ObjC C++ LTO ObjC++ Joined RejectNegative UInteger Var(warn_format_overflow) Warning LangEnabledBy(C ObjC C++ LTO ObjC++,Wformat=, warn_format >= 1, 0) IntegerRange(0, 2)
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Warn about function calls with format strings that write past the end
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of the destination region.
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Wformat-security
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C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
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Warn about possible security problems with format functions.
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@ -748,6 +782,10 @@ C ObjC C++ LTO ObjC++ Warning Alias(Wformat-truncation=, 1, 0)
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Warn about calls to snprintf and similar functions that truncate output.
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Same as -Wformat-truncation=1.
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Wformat-truncation=
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C ObjC C++ LTO ObjC++ Joined RejectNegative UInteger Var(warn_format_trunc) Warning LangEnabledBy(C ObjC C++ LTO ObjC++,Wformat=, warn_format >= 1, 0) IntegerRange(0, 2)
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Warn about calls to snprintf and similar functions that truncate output.
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Wformat-y2k
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C ObjC C++ ObjC++ Var(warn_format_y2k) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=,warn_format >= 2, 0)
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Warn about strftime formats yielding 2-digit years.
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@ -760,19 +798,9 @@ Wformat=
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C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
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Warn about printf/scanf/strftime/strfmon format string anomalies.
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Wformat-overflow=
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C ObjC C++ LTO ObjC++ Joined RejectNegative UInteger Var(warn_format_overflow) Warning LangEnabledBy(C ObjC C++ LTO ObjC++,Wformat=, warn_format >= 1, 0) IntegerRange(0, 2)
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Warn about function calls with format strings that write past the end
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of the destination region.
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Wformat-truncation=
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C ObjC C++ LTO ObjC++ Joined RejectNegative UInteger Var(warn_format_trunc) Warning LangEnabledBy(C ObjC C++ LTO ObjC++,Wformat=, warn_format >= 1, 0) IntegerRange(0, 2)
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Warn about calls to snprintf and similar functions that truncate output.
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Wflex-array-member-not-at-end
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C C++ Var(warn_flex_array_member_not_at_end) Warning
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Warn when a structure containing a C99 flexible array member as the last
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field is not at the end of another structure.
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Wframe-address
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C ObjC C++ ObjC++ Var(warn_frame_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn when __builtin_frame_address or __builtin_return_address is used unsafely.
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Wif-not-aligned
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C ObjC C++ ObjC++ Var(warn_if_not_aligned) Init(1) Warning
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@ -786,6 +814,25 @@ Wignored-attributes
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C C++ Var(warn_ignored_attributes) Init(1) Warning
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Warn whenever attributes are ignored.
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Wimplicit
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C ObjC Var(warn_implicit) Warning LangEnabledBy(C ObjC,Wall)
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Warn about implicit declarations.
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Wimplicit-fallthrough=
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LangEnabledBy(C ObjC C++ ObjC++,Wextra,3,0)
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; in common.opt
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Wimplicit-function-declaration
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C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning LangEnabledBy(C ObjC,Wimplicit)
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Warn about implicit function declarations.
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Wimplicit-int
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C ObjC Var(warn_implicit_int) Init(-1) Warning LangEnabledBy(C ObjC,Wimplicit)
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Warn when a declaration does not specify a type.
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Wimport
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C ObjC C++ ObjC++ Undocumented Ignore
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Winaccessible-base
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C++ ObjC++ Var(warn_inaccessible_base) Init(1) Warning
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Warn when a base is inaccessible in derived due to ambiguity.
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@ -798,10 +845,6 @@ Winfinite-recursion
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C ObjC C++ LTO ObjC++ Var(warn_infinite_recursion) Warning LangEnabledBy(C ObjC C++ LTO ObjC++, Wall)
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Warn for infinitely recursive calls.
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Waddress-of-packed-member
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C ObjC C++ ObjC++ Var(warn_address_of_packed_member) Init(1) Warning
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Warn when the address of packed member of struct or union is taken.
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Winit-self
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C ObjC C++ ObjC++ Var(warn_init_self) Warning LangEnabledBy(C++ ObjC++,Wall)
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Warn about variables which are initialized to themselves.
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@ -815,33 +858,6 @@ C++ ObjC++ Var(warn_interference_size) Warning Init(1)
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Warn about nonsensical values of --param destructive-interference-size or
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constructive-interference-size.
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Wimplicit
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C ObjC Var(warn_implicit) Warning LangEnabledBy(C ObjC,Wall)
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Warn about implicit declarations.
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Wimplicit-fallthrough=
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LangEnabledBy(C ObjC C++ ObjC++,Wextra,3,0)
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; in common.opt
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Wdouble-promotion
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C ObjC C++ ObjC++ Var(warn_double_promotion) Warning
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Warn about implicit conversions from \"float\" to \"double\".
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Wexpansion-to-defined
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C ObjC C++ ObjC++ CPP(warn_expansion_to_defined) CppReason(CPP_W_EXPANSION_TO_DEFINED) Var(cpp_warn_expansion_to_defined) Init(0) Warning EnabledBy(Wextra || Wpedantic)
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Warn if \"defined\" is used outside #if.
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Wimplicit-function-declaration
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C ObjC Var(warn_implicit_function_declaration) Init(-1) Warning LangEnabledBy(C ObjC,Wimplicit)
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Warn about implicit function declarations.
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Wimplicit-int
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C ObjC Var(warn_implicit_int) Init(-1) Warning LangEnabledBy(C ObjC,Wimplicit)
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Warn when a declaration does not specify a type.
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Wimport
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C ObjC C++ ObjC++ Undocumented Ignore
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Winherited-variadic-ctor
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C++ ObjC++ Var(warn_inh_var_ctor) Init(1) Warning
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Warn about C++11 inheriting constructors when the base has a variadic constructor.
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@ -882,14 +898,14 @@ Wliteral-suffix
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C++ ObjC++ CPP(warn_literal_suffix) CppReason(CPP_W_LITERAL_SUFFIX) Var(cpp_warn_literal_suffix) Init(1) Warning
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Warn when a string or character literal is followed by a ud-suffix which does not begin with an underscore.
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Wlogical-op
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C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning
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Warn when a logical operator is suspiciously always evaluating to true or false.
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Wlogical-not-parentheses
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C ObjC C++ ObjC++ Var(warn_logical_not_paren) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn when logical not is used on the left hand side operand of a comparison.
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Wlogical-op
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C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning
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Warn when a logical operator is suspiciously always evaluating to true or false.
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Wlong-long
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C ObjC C++ ObjC++ CPP(cpp_warn_long_long) CppReason(CPP_W_LONG_LONG) Var(warn_long_long) Init(-1) Warning LangEnabledBy(C ObjC,Wc90-c99-compat)
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Do not warn about using \"long long\" when -pedantic.
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@ -902,14 +918,18 @@ Wmain
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LangEnabledBy(C ObjC C++ ObjC++,Wpedantic, 2, 0)
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;
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Wmemset-transposed-args
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C ObjC C++ ObjC++ Var(warn_memset_transposed_args) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about suspicious calls to memset where the third argument is constant literal zero and the second is not.
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Wmaybe-uninitialized
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C ObjC C++ ObjC++ LTO LangEnabledBy(C ObjC C++ ObjC++ LTO,Wall)
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;
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Wmemset-elt-size
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C ObjC C++ ObjC++ Var(warn_memset_elt_size) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about suspicious calls to memset where the third argument contains the number of elements not multiplied by the element size.
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Wmemset-transposed-args
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C ObjC C++ ObjC++ Var(warn_memset_transposed_args) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about suspicious calls to memset where the third argument is constant literal zero and the second is not.
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Wmisleading-indentation
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C C++ Common Var(warn_misleading_indentation) Warning LangEnabledBy(C C++,Wall)
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Warn when the indentation of the code does not reflect the block structure.
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@ -928,6 +948,11 @@ Wmismatched-tags
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C++ ObjC++ Var(warn_mismatched_tags) Warning
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Warn when a class is redeclared or referenced using a mismatched class-key.
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Wmissing-attributes
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C ObjC C++ ObjC++ Var(warn_missing_attributes) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about declarations of entities that may be missing attributes
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that related entities have been declared with.
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Wmissing-braces
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C ObjC C++ ObjC++ Var(warn_missing_braces) Warning LangEnabledBy(C ObjC,Wall)
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Warn about possibly missing braces around initializers.
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@ -940,130 +965,6 @@ Wmissing-field-initializers
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C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Warning EnabledBy(Wextra)
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Warn about missing fields in struct initializers.
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Wmissing-requires
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C++ ObjC++ Var(warn_missing_requires) Init(1) Warning
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Warn about likely missing requires keyword.
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Wmissing-template-keyword
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C++ ObjC++ Var(warn_missing_template_keyword) Init(1) Warning
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Warn when the template keyword is missing after a member access token in a dependent member access expression if that member is a template.
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Wmultistatement-macros
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C ObjC C++ ObjC++ Var(warn_multistatement_macros) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about unsafe macros expanding to multiple statements used as a body of a clause such as if, else, while, switch, or for.
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Wmultiple-inheritance
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C++ ObjC++ Var(warn_multiple_inheritance) Warning
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Warn on direct multiple inheritance.
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Wnamespaces
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C++ ObjC++ Var(warn_namespaces) Warning
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Warn on namespace definition.
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Wnrvo
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C++ ObjC++ Var(warn_nrvo)
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Warn if the named return value optimization is not performed although it is allowed.
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Wpacked-not-aligned
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C ObjC C++ ObjC++ Var(warn_packed_not_aligned) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn when fields in a struct with the packed attribute are misaligned.
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Wrange-loop-construct
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C++ ObjC++ Var(warn_range_loop_construct) Warning LangEnabledBy(C++ ObjC++,Wall)
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Warn when a range-based for-loop is creating unnecessary copies.
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Wredundant-tags
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C++ ObjC++ Var(warn_redundant_tags) Warning
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Warn when a class or enumerated type is referenced using a redundant class-key.
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Wsized-deallocation
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C++ ObjC++ Var(warn_sized_deallocation) Warning EnabledBy(Wextra)
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Warn about missing sized deallocation functions.
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Wsizeof-pointer-div
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C ObjC C++ ObjC++ Var(warn_sizeof_pointer_div) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about suspicious divisions of two sizeof expressions that don't work correctly with pointers.
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Wsizeof-array-div
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C ObjC C++ ObjC++ Var(warn_sizeof_array_div) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about divisions of two sizeof operators when the first one is applied
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to an array and the divisor does not equal the size of the array element.
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Wsizeof-pointer-memaccess
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C ObjC C++ ObjC++ Var(warn_sizeof_pointer_memaccess) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
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Warn about suspicious length parameters to certain string functions if the argument uses sizeof.
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Wsizeof-array-argument
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C ObjC C++ ObjC++ Var(warn_sizeof_array_argument) Warning Init(1)
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Warn when sizeof is applied on a parameter declared as an array.
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Wstring-compare
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C ObjC C++ LTO ObjC++ Warning Var(warn_string_compare) Warning LangEnabledBy(C ObjC C++ ObjC++, Wextra)
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Warn about calls to strcmp and strncmp used in equality expressions that
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are necessarily true or false due to the length of one and size of the other
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argument.
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Wstringop-overflow
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C ObjC C++ LTO ObjC++ Warning Alias(Wstringop-overflow=, 2, 0)
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Warn about buffer overflow in string manipulation functions like memcpy
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and strcpy.
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Wstringop-overflow=
|
||||
C ObjC C++ LTO ObjC++ Joined RejectNegative UInteger Var(warn_stringop_overflow) Init(2) Warning LangEnabledBy(C ObjC C++ LTO ObjC++, Wall, 2, 0) IntegerRange(0, 4)
|
||||
Under the control of Object Size type, warn about buffer overflow in string
|
||||
manipulation functions like memcpy and strcpy.
|
||||
|
||||
Wstringop-overread
|
||||
C ObjC C++ LTO ObjC++ Var(warn_stringop_overread) Init(1) Warning LangEnabledBy(C ObjC C++ LTO ObjC++, Wall)
|
||||
Warn about reading past the end of a source array in string manipulation functions like memchr and memcpy.
|
||||
|
||||
Wstringop-truncation
|
||||
C ObjC C++ LTO ObjC++ Var(warn_stringop_truncation) Warning Init (1) LangEnabledBy(C ObjC C++ LTO ObjC++, Wall)
|
||||
Warn about truncation in string manipulation functions like strncat and strncpy.
|
||||
|
||||
Wstrict-flex-arrays
|
||||
C C++ Var(warn_strict_flex_arrays) Warning
|
||||
Warn about inproper usages of flexible array members
|
||||
according to the level of -fstrict-flex-arrays.
|
||||
|
||||
Wsuggest-attribute=format
|
||||
C ObjC C++ ObjC++ Var(warn_suggest_attribute_format) Warning
|
||||
Warn about functions which might be candidates for format attributes.
|
||||
|
||||
Wsuggest-override
|
||||
C++ ObjC++ Var(warn_override) Warning
|
||||
Suggest that the override keyword be used when the declaration of a virtual
|
||||
function overrides another.
|
||||
|
||||
Wswitch
|
||||
C ObjC C++ ObjC++ Var(warn_switch) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about enumerated switches, with no default, missing a case.
|
||||
|
||||
Wswitch-default
|
||||
C ObjC C++ ObjC++ Var(warn_switch_default) Warning
|
||||
Warn about enumerated switches missing a \"default:\" statement.
|
||||
|
||||
Wswitch-enum
|
||||
C ObjC C++ ObjC++ Var(warn_switch_enum) Warning
|
||||
Warn about all enumerated switches missing a specific case.
|
||||
|
||||
Wswitch-bool
|
||||
C ObjC C++ ObjC++ Var(warn_switch_bool) Warning Init(1)
|
||||
Warn about switches with boolean controlling expression.
|
||||
|
||||
Wswitch-outside-range
|
||||
C ObjC C++ ObjC++ Var(warn_switch_outside_range) Warning Init(1)
|
||||
Warn about switch values that are outside of the switch's type range.
|
||||
|
||||
Wtemplates
|
||||
C++ ObjC++ Var(warn_templates) Warning
|
||||
Warn on primary template declaration.
|
||||
|
||||
Wmissing-attributes
|
||||
C ObjC C++ ObjC++ Var(warn_missing_attributes) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about declarations of entities that may be missing attributes
|
||||
that related entities have been declared with.
|
||||
|
||||
Wmissing-format-attribute
|
||||
C ObjC C++ ObjC++ Warning Alias(Wsuggest-attribute=format)
|
||||
;
|
||||
|
|
@ -1080,6 +981,14 @@ Wmissing-prototypes
|
|||
C ObjC Var(warn_missing_prototypes) Warning
|
||||
Warn about global functions without prototypes.
|
||||
|
||||
Wmissing-requires
|
||||
C++ ObjC++ Var(warn_missing_requires) Init(1) Warning
|
||||
Warn about likely missing requires keyword.
|
||||
|
||||
Wmissing-template-keyword
|
||||
C++ ObjC++ Var(warn_missing_template_keyword) Init(1) Warning
|
||||
Warn when the template keyword is missing after a member access token in a dependent member access expression if that member is a template.
|
||||
|
||||
Wmissing-variable-declarations
|
||||
C ObjC Var(warn_missing_variable_declarations) Warning
|
||||
Warn about global variables without previous declarations.
|
||||
|
|
@ -1091,6 +1000,18 @@ Wmultichar
|
|||
C ObjC C++ ObjC++ CPP(warn_multichar) CppReason(CPP_W_MULTICHAR) Var(cpp_warn_multichar) Init(0) Warning
|
||||
Warn about use of multi-character character constants.
|
||||
|
||||
Wmultiple-inheritance
|
||||
C++ ObjC++ Var(warn_multiple_inheritance) Warning
|
||||
Warn on direct multiple inheritance.
|
||||
|
||||
Wmultistatement-macros
|
||||
C ObjC C++ ObjC++ Var(warn_multistatement_macros) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about unsafe macros expanding to multiple statements used as a body of a clause such as if, else, while, switch, or for.
|
||||
|
||||
Wnamespaces
|
||||
C++ ObjC++ Var(warn_namespaces) Warning
|
||||
Warn on namespace definition.
|
||||
|
||||
Wnarrowing
|
||||
C ObjC C++ ObjC++ Warning Var(warn_narrowing) Init(-1) LangEnabledBy(C++ ObjC++,Wall || Wc++11-compat)
|
||||
Warn about narrowing conversions within { } that are ill-formed in C++11.
|
||||
|
|
@ -1111,14 +1032,6 @@ Wnon-template-friend
|
|||
C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning
|
||||
Warn when non-templatized friend functions are declared within a template.
|
||||
|
||||
Wclass-conversion
|
||||
C++ ObjC++ Var(warn_class_conversion) Init(1) Warning
|
||||
Warn when a conversion function will never be called due to the type it converts to.
|
||||
|
||||
Wclass-memaccess
|
||||
C++ ObjC++ Var(warn_class_memaccess) Warning LangEnabledBy(C++ ObjC++, Wall)
|
||||
Warn for unsafe raw memory writes to objects of class types.
|
||||
|
||||
Wnon-virtual-dtor
|
||||
C++ ObjC++ Var(warn_nonvdtor) Warning LangEnabledBy(C++ ObjC++,Weffc++)
|
||||
Warn about non-virtual destructors.
|
||||
|
|
@ -1211,10 +1124,18 @@ Woverride-init-side-effects
|
|||
C ObjC Var(warn_override_init_side_effects) Init(1) Warning
|
||||
Warn about overriding initializers with side effects.
|
||||
|
||||
Wnrvo
|
||||
C++ ObjC++ Var(warn_nrvo)
|
||||
Warn if the named return value optimization is not performed although it is allowed.
|
||||
|
||||
Wpacked-bitfield-compat
|
||||
C ObjC C++ ObjC++ Var(warn_packed_bitfield_compat) Init(-1) Warning
|
||||
Warn about packed bit-fields whose offset changed in GCC 4.4.
|
||||
|
||||
Wpacked-not-aligned
|
||||
C ObjC C++ ObjC++ Var(warn_packed_not_aligned) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn when fields in a struct with the packed attribute are misaligned.
|
||||
|
||||
Wparentheses
|
||||
C ObjC C++ ObjC++ Var(warn_parentheses) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about possibly missing parentheses.
|
||||
|
|
@ -1227,6 +1148,14 @@ Wpessimizing-move
|
|||
C++ ObjC++ Var(warn_pessimizing_move) Warning LangEnabledBy(C++ ObjC++, Wall)
|
||||
Warn about calling std::move on a local object in a return statement preventing copy elision.
|
||||
|
||||
Wplacement-new
|
||||
C++ Warning Alias(Wplacement-new=, 1, 0)
|
||||
Warn for placement new expressions with undefined behavior.
|
||||
|
||||
Wplacement-new=
|
||||
C++ Joined RejectNegative UInteger Var(warn_placement_new) Init(-1) Warning IntegerRange(0, 2)
|
||||
Warn for placement new expressions with undefined behavior.
|
||||
|
||||
Wpmf-conversions
|
||||
C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning
|
||||
Warn when converting the type of pointers to member functions.
|
||||
|
|
@ -1263,13 +1192,9 @@ Wprotocol
|
|||
ObjC ObjC++ Var(warn_protocol) Init(1) Warning
|
||||
Warn if inherited methods are unimplemented.
|
||||
|
||||
Wplacement-new
|
||||
C++ Warning Alias(Wplacement-new=, 1, 0)
|
||||
Warn for placement new expressions with undefined behavior.
|
||||
|
||||
Wplacement-new=
|
||||
C++ Joined RejectNegative UInteger Var(warn_placement_new) Init(-1) Warning IntegerRange(0, 2)
|
||||
Warn for placement new expressions with undefined behavior.
|
||||
Wrange-loop-construct
|
||||
C++ ObjC++ Var(warn_range_loop_construct) Warning LangEnabledBy(C++ ObjC++,Wall)
|
||||
Warn when a range-based for-loop is creating unnecessary copies.
|
||||
|
||||
Wredundant-decls
|
||||
C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning
|
||||
|
|
@ -1279,6 +1204,10 @@ Wredundant-move
|
|||
C++ ObjC++ Var(warn_redundant_move) Warning LangEnabledBy(C++ ObjC++,Wextra)
|
||||
Warn about redundant calls to std::move.
|
||||
|
||||
Wredundant-tags
|
||||
C++ ObjC++ Var(warn_redundant_tags) Warning
|
||||
Warn when a class or enumerated type is referenced using a redundant class-key.
|
||||
|
||||
Wregister
|
||||
C++ ObjC++ Var(warn_register) Warning
|
||||
Warn about uses of register storage specifier.
|
||||
|
|
@ -1287,6 +1216,11 @@ Wreorder
|
|||
C++ ObjC++ Var(warn_reorder) Warning LangEnabledBy(C++ ObjC++,Wall)
|
||||
Warn when the compiler reorders code.
|
||||
|
||||
Wrestrict
|
||||
C ObjC C++ ObjC++ Var(warn_restrict) Warning LangEnabledBy(C ObjC C++ ObjC++, Wall)
|
||||
Warn when an argument passed to a restrict-qualified parameter aliases with
|
||||
another argument.
|
||||
|
||||
Wreturn-mismatch
|
||||
C ObjC Var(warn_return_mismatch) Warning Init(1)
|
||||
Warn whenever void-returning functions return a non-void expressions, or a return expression is missing in a function not returning void.
|
||||
|
|
@ -1335,10 +1269,6 @@ Wshift-negative-value
|
|||
C ObjC C++ ObjC++ Var(warn_shift_negative_value) Init(-1) Warning
|
||||
Warn if left shifting a negative value.
|
||||
|
||||
Warith-conversion
|
||||
C ObjC C++ ObjC++ Var(warn_arith_conv) Warning
|
||||
Warn if conversion of the result of arithmetic might change the value even though converting the operands cannot.
|
||||
|
||||
Wsign-compare
|
||||
C ObjC C++ ObjC++ Var(warn_sign_compare) Warning LangEnabledBy(C++ ObjC++,Wall)
|
||||
Warn about signed-unsigned comparisons.
|
||||
|
|
@ -1355,26 +1285,109 @@ Wsign-promo
|
|||
C++ ObjC++ Var(warn_sign_promo) Warning
|
||||
Warn when overload promotes from unsigned to signed.
|
||||
|
||||
Wstrict-null-sentinel
|
||||
C++ ObjC++ Warning Var(warn_strict_null_sentinel)
|
||||
Warn about uncasted NULL used as sentinel.
|
||||
Wsized-deallocation
|
||||
C++ ObjC++ Var(warn_sized_deallocation) Warning EnabledBy(Wextra)
|
||||
Warn about missing sized deallocation functions.
|
||||
|
||||
Wstrict-prototypes
|
||||
C ObjC Var(warn_strict_prototypes) Warning
|
||||
Warn about unprototyped function declarations.
|
||||
Wsizeof-array-div
|
||||
C ObjC C++ ObjC++ Var(warn_sizeof_array_div) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about divisions of two sizeof operators when the first one is applied
|
||||
to an array and the divisor does not equal the size of the array element.
|
||||
|
||||
Wsizeof-array-argument
|
||||
C ObjC C++ ObjC++ Var(warn_sizeof_array_argument) Warning Init(1)
|
||||
Warn when sizeof is applied on a parameter declared as an array.
|
||||
|
||||
Wsizeof-pointer-div
|
||||
C ObjC C++ ObjC++ Var(warn_sizeof_pointer_div) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about suspicious divisions of two sizeof expressions that don't work correctly with pointers.
|
||||
|
||||
Wsizeof-pointer-memaccess
|
||||
C ObjC C++ ObjC++ Var(warn_sizeof_pointer_memaccess) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about suspicious length parameters to certain string functions if the argument uses sizeof.
|
||||
|
||||
Wstrict-aliasing=
|
||||
C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall, 3, 0) IntegerRange(0, 3)
|
||||
;
|
||||
|
||||
Wstrict-flex-arrays
|
||||
C C++ Var(warn_strict_flex_arrays) Warning
|
||||
Warn about inproper usages of flexible array members
|
||||
according to the level of -fstrict-flex-arrays.
|
||||
|
||||
Wstrict-null-sentinel
|
||||
C++ ObjC++ Warning Var(warn_strict_null_sentinel)
|
||||
Warn about uncasted NULL used as sentinel.
|
||||
|
||||
Wstrict-overflow=
|
||||
C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 5)
|
||||
;
|
||||
|
||||
Wstrict-prototypes
|
||||
C ObjC Var(warn_strict_prototypes) Warning
|
||||
Warn about unprototyped function declarations.
|
||||
|
||||
Wstrict-selector-match
|
||||
ObjC ObjC++ Var(warn_strict_selector_match) Warning
|
||||
Warn if type signatures of candidate methods do not match exactly.
|
||||
|
||||
Wstring-compare
|
||||
C ObjC C++ LTO ObjC++ Warning Var(warn_string_compare) Warning LangEnabledBy(C ObjC C++ ObjC++, Wextra)
|
||||
Warn about calls to strcmp and strncmp used in equality expressions that
|
||||
are necessarily true or false due to the length of one and size of the other
|
||||
argument.
|
||||
|
||||
Wstringop-overflow
|
||||
C ObjC C++ LTO ObjC++ Warning Alias(Wstringop-overflow=, 2, 0)
|
||||
Warn about buffer overflow in string manipulation functions like memcpy
|
||||
and strcpy.
|
||||
|
||||
Wstringop-overflow=
|
||||
C ObjC C++ LTO ObjC++ Joined RejectNegative UInteger Var(warn_stringop_overflow) Init(2) Warning LangEnabledBy(C ObjC C++ LTO ObjC++, Wall, 2, 0) IntegerRange(0, 4)
|
||||
Under the control of Object Size type, warn about buffer overflow in string
|
||||
manipulation functions like memcpy and strcpy.
|
||||
|
||||
Wstringop-overread
|
||||
C ObjC C++ LTO ObjC++ Var(warn_stringop_overread) Init(1) Warning LangEnabledBy(C ObjC C++ LTO ObjC++, Wall)
|
||||
Warn about reading past the end of a source array in string manipulation functions like memchr and memcpy.
|
||||
|
||||
Wstringop-truncation
|
||||
C ObjC C++ LTO ObjC++ Var(warn_stringop_truncation) Warning Init (1) LangEnabledBy(C ObjC C++ LTO ObjC++, Wall)
|
||||
Warn about truncation in string manipulation functions like strncat and strncpy.
|
||||
|
||||
Wsubobject-linkage
|
||||
C++ ObjC++ Var(warn_subobject_linkage) Warning Init(1)
|
||||
Warn if a class type has a base or a field whose type uses the anonymous namespace or depends on a type with no linkage.
|
||||
|
||||
Wsuggest-attribute=format
|
||||
C ObjC C++ ObjC++ Var(warn_suggest_attribute_format) Warning
|
||||
Warn about functions which might be candidates for format attributes.
|
||||
|
||||
Wsuggest-override
|
||||
C++ ObjC++ Var(warn_override) Warning
|
||||
Suggest that the override keyword be used when the declaration of a virtual
|
||||
function overrides another.
|
||||
|
||||
Wswitch
|
||||
C ObjC C++ ObjC++ Var(warn_switch) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about enumerated switches, with no default, missing a case.
|
||||
|
||||
Wswitch-default
|
||||
C ObjC C++ ObjC++ Var(warn_switch_default) Warning
|
||||
Warn about enumerated switches missing a \"default:\" statement.
|
||||
|
||||
Wswitch-enum
|
||||
C ObjC C++ ObjC++ Var(warn_switch_enum) Warning
|
||||
Warn about all enumerated switches missing a specific case.
|
||||
|
||||
Wswitch-bool
|
||||
C ObjC C++ ObjC++ Var(warn_switch_bool) Warning Init(1)
|
||||
Warn about switches with boolean controlling expression.
|
||||
|
||||
Wswitch-outside-range
|
||||
C ObjC C++ ObjC++ Var(warn_switch_outside_range) Warning Init(1)
|
||||
Warn about switch values that are outside of the switch's type range.
|
||||
|
||||
Wsync-nand
|
||||
C C++ Var(warn_sync_nand) Init(1) Warning
|
||||
Warn when __sync_fetch_and_nand and __sync_nand_and_fetch built-in functions are used.
|
||||
|
|
@ -1387,6 +1400,10 @@ Wsystem-headers
|
|||
C ObjC C++ ObjC++ Warning
|
||||
; Documented in common.opt
|
||||
|
||||
Wtemplates
|
||||
C++ ObjC++ Var(warn_templates) Warning
|
||||
Warn on primary template declaration.
|
||||
|
||||
Wtautological-compare
|
||||
C ObjC C++ ObjC++ Var(warn_tautological_compare) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn if a comparison always evaluates to true or false.
|
||||
|
|
@ -1423,10 +1440,6 @@ Wuninitialized
|
|||
C ObjC C++ ObjC++ LTO LangEnabledBy(C ObjC C++ ObjC++ LTO,Wall)
|
||||
;
|
||||
|
||||
Wmaybe-uninitialized
|
||||
C ObjC C++ ObjC++ LTO LangEnabledBy(C ObjC C++ ObjC++ LTO,Wall)
|
||||
;
|
||||
|
||||
Wunknown-pragmas
|
||||
C ObjC C++ ObjC++ Warning Var(warn_unknown_pragmas) LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
|
||||
Warn about unrecognized pragmas.
|
||||
|
|
@ -1439,6 +1452,14 @@ Wunused
|
|||
C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
; documented in common.opt
|
||||
|
||||
Wunused-const-variable
|
||||
C ObjC C++ ObjC++ Warning Alias(Wunused-const-variable=, 2, 0)
|
||||
Warn when a const variable is unused.
|
||||
|
||||
Wunused-const-variable=
|
||||
C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_unused_const_variable) Warning LangEnabledBy(C ObjC,Wunused-variable, 1, 0) IntegerRange(0, 2)
|
||||
Warn when a const variable is unused.
|
||||
|
||||
Wunused-local-typedefs
|
||||
C ObjC C++ ObjC++ Var(warn_unused_local_typedefs) Warning EnabledBy(Wunused)
|
||||
Warn when typedefs locally defined in a function are not used.
|
||||
|
|
@ -1455,14 +1476,6 @@ Wunused-variable
|
|||
C ObjC C++ ObjC++ LangEnabledBy(C ObjC C++ ObjC++,Wunused)
|
||||
; documented in common.opt
|
||||
|
||||
Wunused-const-variable
|
||||
C ObjC C++ ObjC++ Warning Alias(Wunused-const-variable=, 2, 0)
|
||||
Warn when a const variable is unused.
|
||||
|
||||
Wunused-const-variable=
|
||||
C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_unused_const_variable) Warning LangEnabledBy(C ObjC,Wunused-variable, 1, 0) IntegerRange(0, 2)
|
||||
Warn when a const variable is unused.
|
||||
|
||||
; Defining this option here in addition to common.opt is necessary
|
||||
; in order for the default -Wall setting of -Wuse-after-free=2 to take
|
||||
; effect.
|
||||
|
|
@ -1471,6 +1484,10 @@ Wuse-after-free=
|
|||
LangEnabledBy(C ObjC C++ LTO ObjC++, Wall,2,0)
|
||||
; in common.opt
|
||||
|
||||
Wuseless-cast
|
||||
C ObjC C++ ObjC++ Var(warn_useless_cast) Warning
|
||||
Warn about useless casts.
|
||||
|
||||
Wvariadic-macros
|
||||
C ObjC C++ ObjC++ CPP(warn_variadic_macros) CppReason(CPP_W_VARIADIC_MACROS) Var(cpp_warn_variadic_macros) Init(0) Warning LangEnabledBy(C ObjC C++ ObjC++,Wpedantic || Wtraditional)
|
||||
Warn about using variadic macros.
|
||||
|
|
@ -1483,6 +1500,10 @@ Wvexing-parse
|
|||
C++ ObjC++ Warning Var(warn_vexing_parse) Init(1)
|
||||
Warn about the most vexing parse syntactic ambiguity.
|
||||
|
||||
Wvirtual-move-assign
|
||||
C++ ObjC++ Var(warn_virtual_move_assign) Warning Init(1)
|
||||
Warn if a virtual base has a non-trivial move assignment operator.
|
||||
|
||||
Wvla
|
||||
C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning
|
||||
Warn if a variable length array is used.
|
||||
|
|
@ -1513,10 +1534,6 @@ Wvirtual-inheritance
|
|||
C++ ObjC++ Var(warn_virtual_inheritance) Warning
|
||||
Warn on direct virtual inheritance.
|
||||
|
||||
Wvirtual-move-assign
|
||||
C++ ObjC++ Var(warn_virtual_move_assign) Warning Init(1)
|
||||
Warn if a virtual base has a non-trivial move assignment operator.
|
||||
|
||||
Wwrite-strings
|
||||
C ObjC C++ ObjC++ Var(warn_write_strings) Warning
|
||||
In C++, nonzero means warn about deprecated conversion from string literals to 'char *'. In C, similar warning, except that the conversion is of course not deprecated by the ISO C standard.
|
||||
|
|
@ -1529,26 +1546,9 @@ Wzero-as-null-pointer-constant
|
|||
C++ ObjC++ Var(warn_zero_as_null_pointer_constant) Warning
|
||||
Warn when a literal '0' is used as null pointer.
|
||||
|
||||
Wuseless-cast
|
||||
C ObjC C++ ObjC++ Var(warn_useless_cast) Warning
|
||||
Warn about useless casts.
|
||||
|
||||
Wsubobject-linkage
|
||||
C++ ObjC++ Var(warn_subobject_linkage) Warning Init(1)
|
||||
Warn if a class type has a base or a field whose type uses the anonymous namespace or depends on a type with no linkage.
|
||||
|
||||
Welaborated-enum-base
|
||||
C++ ObjC++ Var(warn_elaborated_enum_base) Warning Init(1)
|
||||
Warn if an additional enum-base is used in an elaborated-type-specifier.
|
||||
|
||||
Wduplicate-decl-specifier
|
||||
C ObjC Var(warn_duplicate_decl_specifier) Warning LangEnabledBy(C ObjC,Wall)
|
||||
Warn when a declaration has duplicate const, volatile, restrict or _Atomic specifier.
|
||||
|
||||
Wrestrict
|
||||
C ObjC C++ ObjC++ Var(warn_restrict) Warning LangEnabledBy(C ObjC C++ ObjC++, Wall)
|
||||
Warn when an argument passed to a restrict-qualified parameter aliases with
|
||||
another argument.
|
||||
Wzero-length-bounds
|
||||
C ObjC C++ ObjC++ Var(warn_zero_length_bounds) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
|
||||
Warn about accesses to interior zero-length array members.
|
||||
|
||||
ansi
|
||||
C ObjC C++ ObjC++
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue