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commit 2084e7ca4d344c39eb39e53848b51b5d84444414
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c6d234 |
Author: Joseph Myers <joseph@codesourcery.com>
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c6d234 |
Date: Wed Dec 10 00:41:19 2014 +0000
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c6d234 |
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c6d234 |
Add macros for diagnostic control, use for scanf %a tests.
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c6d234 |
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c6d234 |
In <https://sourceware.org/ml/libc-alpha/2014-11/msg00326.html>,
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c6d234 |
Roland requested internal macros for use of "#pragma GCC diagnostic".
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c6d234 |
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c6d234 |
This patch adds such macros and uses them to disable -Wformat warnings
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c6d234 |
for some code testing GNU scanf %as where GCC expects C99 scanf %a
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c6d234 |
(several other stdio tests currently use -Wno-format to disable
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c6d234 |
warnings). Limitations in GCC's diagnostic pragmas require separate
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c6d234 |
macros before and after the code generating the warnings, rather than
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c6d234 |
a single macro taking that code as an argument.
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c6d234 |
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c6d234 |
The macros are named DIAG_*_NEEDS_COMMENT to emphasise to reviewers
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c6d234 |
the need for a comment accompanying any use of them (such comments may
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c6d234 |
however just appear once for several uses of the macros for the same
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c6d234 |
issue in the same file). I put a GCC version in the arguments to
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c6d234 |
DIAG_IGNORE_NEEDS_COMMENT, as that seems something useful to grep for
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c6d234 |
when obsoleting support for an old GCC version and needing to decide
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c6d234 |
if warning-disabling code is still relevant.
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c6d234 |
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c6d234 |
These macros should be usable for replacing existing -Wno-* use in
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c6d234 |
makefiles (as also suggested by Roland), though I have no plans to
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c6d234 |
work on that (only on use of the macros in cases where warnings are
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c6d234 |
currently present that need disabling to use -Werror).
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c6d234 |
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c6d234 |
Tested for x86_64.
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c6d234 |
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c6d234 |
* include/libc-internal.h (DIAG_PUSH_NEEDS_COMMENT): New macro.
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c6d234 |
(DIAG_POP_NEEDS_COMMENT): Likewise.
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c6d234 |
(_DIAG_STR1): Likewise.
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c6d234 |
(_DIAG_STR): Likewise.
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c6d234 |
(DIAG_IGNORE_NEEDS_COMMENT): Likewise.
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c6d234 |
* stdio-common/bug21.c: Include <libc-internal.h>.
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c6d234 |
(do_test): Disable -Wformat around call to sscanf.
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c6d234 |
* stdio-common/scanf14.c: Include <libc-internal.h>.
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c6d234 |
(main): Disable -Wformat around some calls to scanf functions.
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c6d234 |
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c6d234 |
diff --git a/include/libc-internal.h b/include/libc-internal.h
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c6d234 |
index 2ced1c17d3dff93d..bca59a46144b736f 100644
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c6d234 |
--- a/include/libc-internal.h
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c6d234 |
+++ b/include/libc-internal.h
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c6d234 |
@@ -76,4 +76,35 @@ extern void __init_misc (int, char **, char **);
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c6d234 |
#define ignore_value(x) \
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({ __typeof__ (x) __ignored_value = (x); (void) __ignored_value; })
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c6d234 |
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c6d234 |
+/* The macros to control diagnostics are structured like this, rather
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c6d234 |
+ than a single macro that both pushes and pops diagnostic state and
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c6d234 |
+ takes the affected code as an argument, because the GCC pragmas
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c6d234 |
+ work by disabling the diagnostic for a range of source locations
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c6d234 |
+ and do not work when all the pragmas and the affected code are in a
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c6d234 |
+ single macro expansion. */
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c6d234 |
+
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c6d234 |
+/* Push diagnostic state. */
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c6d234 |
+#define DIAG_PUSH_NEEDS_COMMENT _Pragma ("GCC diagnostic push")
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c6d234 |
+
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c6d234 |
+/* Pop diagnostic state. */
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c6d234 |
+#define DIAG_POP_NEEDS_COMMENT _Pragma ("GCC diagnostic pop")
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c6d234 |
+
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c6d234 |
+#define _DIAG_STR1(s) #s
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c6d234 |
+#define _DIAG_STR(s) _DIAG_STR1(s)
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c6d234 |
+
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c6d234 |
+/* Ignore the diagnostic OPTION. VERSION is the most recent GCC
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c6d234 |
+ version for which the diagnostic has been confirmed to appear in
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c6d234 |
+ the absence of the pragma (in the form MAJOR.MINOR for GCC 4.x,
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c6d234 |
+ just MAJOR for GCC 5 and later). Uses of this pragma should be
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c6d234 |
+ reviewed when the GCC version given is no longer supported for
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c6d234 |
+ building glibc; the version number should always be on the same
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c6d234 |
+ source line as the macro name, so such uses can be found with grep.
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c6d234 |
+ Uses should come with a comment giving more details of the
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c6d234 |
+ diagnostic, and an architecture on which it is seen if possibly
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c6d234 |
+ optimization-related and not in architecture-specific code. This
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c6d234 |
+ macro should only be used if the diagnostic seems hard to fix (for
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c6d234 |
+ example, optimization-related false positives). */
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c6d234 |
+#define DIAG_IGNORE_NEEDS_COMMENT(version, option) \
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c6d234 |
+ _Pragma (_DIAG_STR (GCC diagnostic ignored option))
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c6d234 |
+
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c6d234 |
#endif /* _LIBC_INTERNAL */
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c6d234 |
diff --git a/stdio-common/bug21.c b/stdio-common/bug21.c
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c6d234 |
index d22b9c1a9717a197..ca27272ba191321e 100644
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c6d234 |
--- a/stdio-common/bug21.c
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c6d234 |
+++ b/stdio-common/bug21.c
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c6d234 |
@@ -1,4 +1,5 @@
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c6d234 |
#include <stdio.h>
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c6d234 |
+#include <libc-internal.h>
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c6d234 |
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c6d234 |
static int
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
do_test (void)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -6,7 +7,15 @@ do_test (void)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
static const char buf[] = " ";
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
char *str;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ /* GCC in C99 mode treats %a as the C99 format expecting float *,
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ but glibc with _GNU_SOURCE treats %as as the GNU allocation
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ extension, so resulting in "warning: format '%a' expects argument
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ of type 'float *', but argument 3 has type 'char **'". This
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ applies to the other %as, %aS and %a[] formats below as well. */
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_PUSH_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
int r = sscanf (buf, "%as", &str);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_POP_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
printf ("%d %p\n", r, str);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
return r != -1 || str != NULL;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
diff --git a/stdio-common/scanf14.c b/stdio-common/scanf14.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
index 6ca5c7c5679632a3..cffccb0b19d2927b 100644
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
--- a/stdio-common/scanf14.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+++ b/stdio-common/scanf14.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -2,6 +2,7 @@
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
#include <stdlib.h>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
#include <string.h>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
#include <wchar.h>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+#include <libc-internal.h>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
#define FAIL() \
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
do { \
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -23,6 +24,13 @@ main (void)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else if (f != 0.25 || memcmp (c, "s x", 3) != 0)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ /* GCC in C99 mode treats %a as the C99 format expecting float *,
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ but glibc with _GNU_SOURCE treats %as as the GNU allocation
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ extension, so resulting in "warning: format '%a' expects argument
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ of type 'float *', but argument 3 has type 'char **'". This
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ applies to the other %as, %aS and %a[] formats below as well. */
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_PUSH_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (sscanf (" 1.25s x", "%as%2c", &sp, c) != 2)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -32,10 +40,14 @@ main (void)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
memset (sp, 'x', sizeof "1.25s");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
free (sp);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_POP_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (sscanf (" 2.25s x", "%las%2c", &d, c) != 2)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else if (d != 2.25 || memcmp (c, " x", 2) != 0)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ /* See explanation above. */
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_PUSH_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (sscanf (" 3.25S x", "%4aS%3c", &lsp, c) != 2)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -54,6 +66,7 @@ main (void)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
memset (sp, 'x', sizeof "4.25");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
free (sp);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_POP_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (sscanf ("5.25[0-9.] x", "%la[0-9.]%2c", &d, c) != 2)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else if (d != 5.25 || memcmp (c, " x", 2) != 0)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -82,6 +95,9 @@ main (void)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (fseek (fp, 0, SEEK_SET) != 0)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ /* See explanation above. */
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_PUSH_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (fscanf (fp, "%as%2c", &sp, c) != 2)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -91,11 +107,15 @@ main (void)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
memset (sp, 'x', sizeof "1.25s");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
free (sp);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_POP_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (freopen (fname, "r", stdin) == NULL)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
{
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ /* See explanation above. */
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_PUSH_NEEDS_COMMENT;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
if (scanf ("%as%2c", &sp, c) != 2)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
FAIL ();
|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
else
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
@@ -105,6 +125,7 @@ main (void)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
memset (sp, 'x', sizeof "1.25s");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
free (sp);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
}
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
+ DIAG_POP_NEEDS_COMMENT;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
}
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
c6d234 |
fclose (fp);
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