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invoke.texi (-ansi): Mention explicitly corresponding -std= options.

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2008-01-31  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	* doc/invoke.texi (-ansi): Mention explicitly corresponding -std=
	options. Minor fixes.
	(-std): Move reference to standards closer to where language
	standards are first mentioned.

From-SVN: r131980
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Manuel López-Ibáñez 2008-01-31 18:28:29 +00:00
parent 395c9e79f0
commit 89fe7f1bc7
2 changed files with 16 additions and 10 deletions
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gcc/ChangeLog
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@ -1,3 +1,10 @@
2008-01-31 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
* doc/invoke.texi (-ansi): Mention explicitly corresponding -std=
options. Minor fixes.
(-std): Move reference to standards closer to where language
standards are first mentioned.
2008-01-31 Richard Sandiford <rsandifo@nildram.co.uk>
PR rtl-optimization/34995

19
gcc/doc/invoke.texi
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@ -1294,8 +1294,8 @@ accepts:
@cindex ISO support
@item -ansi
@opindex ansi
In C mode, support all ISO C90 programs. In C++ mode,
remove GNU extensions that conflict with ISO C++.
In C mode, this is equivalent to @samp{-std=c89}. In C++ mode, it is
equivalent to @samp{-std=c++98}.
This turns off certain features of GCC that are incompatible with ISO
C90 (when compiling C code), or of standard C++ (when compiling C++ code),
@ -1324,17 +1324,19 @@ from declaring certain functions or defining certain macros that the
ISO standard doesn't call for; this is to avoid interfering with any
programs that might use these names for other things.
Functions which would normally be built in but do not have semantics
Functions that would normally be built in but do not have semantics
defined by ISO C (such as @code{alloca} and @code{ffs}) are not built-in
functions with @option{-ansi} is used. @xref{Other Builtins,,Other
functions when @option{-ansi} is used. @xref{Other Builtins,,Other
built-in functions provided by GCC}, for details of the functions
affected.
@item -std=
@opindex std
Determine the language standard. This option is currently only
supported when compiling C or C++. A value for this option must be
provided; possible values are
Determine the language standard. @xref{Standards,,Language Standards
Supported by GCC}, for details of these standard versions. This option
is currently only supported when compiling C or C++.
A value for this option must be provided; possible values are
@table @samp
@item c89
@ -1390,9 +1392,6 @@ effects as @option{-ansi}, except that features that were not in ISO C90
but are in the specified version (for example, @samp{//} comments and
the @code{inline} keyword in ISO C99) are not disabled.
@xref{Standards,,Language Standards Supported by GCC}, for details of
these standard versions.
@item -fgnu89-inline
@opindex fgnu89-inline
The option @option{-fgnu89-inline} tells GCC to use the traditional