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re PR c/85318 (-Wc90-c99-compat does not warn about for loop initial declarations)

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PR c/85318
	* c-decl.c (check_for_loop_decls): Add -Wc90-c99-compat warning about
	for loop initial declarations.

	* gcc.dg/Wc90-c99-compat-10.c: New test.
	* gcc.dg/Wc90-c99-compat-11.c: New test.
	* gcc.dg/Wc90-c99-compat-12.c: New test.
	* gcc.dg/Wc90-c99-compat-9.c: New test.

From-SVN: r261293
This commit is contained in:
Marek Polacek 2018-06-07 19:15:45 +00:00 • committed by Marek Polacek
parent a3e87f07f3
commit e4d44a3724
7 changed files with 66 additions and 0 deletions
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6
gcc/c/ChangeLog
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@ -1,3 +1,9 @@
2018-06-07 Marek Polacek <polacek@redhat.com>
PR c/85318
* c-decl.c (check_for_loop_decls): Add -Wc90-c99-compat warning about
for loop initial declarations.
2018-05-30 David Pagan <dave.pagan@oracle.com>
PR c/55976

4
gcc/c/c-decl.c
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@ -9608,6 +9608,10 @@ check_for_loop_decls (location_t loc, bool turn_off_iso_c99_error)
}
return NULL_TREE;
}
else
pedwarn_c90 (loc, OPT_Wpedantic, "ISO C90 does not support %<for%> loop "
"initial declarations");
/* C99 subclause 6.8.5 paragraph 3:
[#3] The declaration part of a for statement shall only

8
gcc/testsuite/ChangeLog
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@ -1,3 +1,11 @@
2018-06-07 Marek Polacek <polacek@redhat.com>
PR c/85318
* gcc.dg/Wc90-c99-compat-10.c: New test.
* gcc.dg/Wc90-c99-compat-11.c: New test.
* gcc.dg/Wc90-c99-compat-12.c: New test.
* gcc.dg/Wc90-c99-compat-9.c: New test.
2018-06-07 Paul Koning <ni1d@arrl.net>
* gcc.c-torture/compile/20180605-1.c: New test.

12
gcc/testsuite/gcc.dg/Wc90-c99-compat-10.c Normal file
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@ -0,0 +1,12 @@
/* PR c/85318 */
/* { dg-do compile } */
/* { dg-options "-std=gnu11 -Wc90-c99-compat -pedantic-errors" } */
extern void bar (int);
void
foo (int n)
{
for (int i = 0; i < n; i++) /* { dg-warning "ISO C90 does not support .for. loop" } */
bar (i);
}

12
gcc/testsuite/gcc.dg/Wc90-c99-compat-11.c Normal file
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@ -0,0 +1,12 @@
/* PR c/85318 */
/* { dg-do compile } */
/* { dg-options "-std=gnu11 -Wc90-c99-compat -Wno-pedantic" } */
extern void bar (int);
void
foo (int n)
{
for (int i = 0; i < n; i++) /* { dg-warning "ISO C90 does not support .for. loop" } */
bar (i);
}

12
gcc/testsuite/gcc.dg/Wc90-c99-compat-12.c Normal file
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@ -0,0 +1,12 @@
/* PR c/85318 */
/* { dg-do compile } */
/* { dg-options "-Wpedantic" } */
extern void bar (int);
void
foo (int n)
{
for (int i = 0; i < n; i++) /* { dg-bogus "ISO C90 does not support .for. loop" } */
bar (i);
}

12
gcc/testsuite/gcc.dg/Wc90-c99-compat-9.c Normal file
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@ -0,0 +1,12 @@
/* PR c/85318 */
/* { dg-do compile } */
/* { dg-options "-std=gnu99 -Wc90-c99-compat -pedantic-errors" } */
extern void bar (int);
void
foo (int n)
{
for (int i = 0; i < n; i++) /* { dg-warning "ISO C90 does not support .for. loop" } */
bar (i);
}