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Get rid of warning comparision will always evaluate as true

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Stefan Liebler 2014-12-12 11:13:09 +01:00 committed by Andreas Krebbel
parent 9173840b4d
commit 9d9c0019e7
3 changed files with 15 additions and 3 deletions
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9
ChangeLog
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@ -1,3 +1,10 @@
2014-12-12 Stefan Liebler <stli@linux.vnet.ibm.com>
* nptl/tst-mutex6.c
(ATTR_NULL): New define checks ATTR against NULL.
(do_test): Use !ATTR_NULL instead of ATTR != NULL.
* nptl/tst-mutexpp6.c (ATTR_NULL): New define.
2014-12-11 James Lemke <jwlemke@codesourcery.com> 2014-12-11 James Lemke <jwlemke@codesourcery.com>
[BZ #17581] [BZ #17581]
@ -117,7 +124,7 @@
2014-12-11 Stefan Liebler <stli@linux.vnet.ibm.com> 2014-12-11 Stefan Liebler <stli@linux.vnet.ibm.com>
sysdeps/s390/s390-32/dl-machine.h (elf_machine_load_address): * sysdeps/s390/s390-32/dl-machine.h (elf_machine_load_address):
Truncating assembler expression to a .long expression. Truncating assembler expression to a .long expression.
2014-12-11 Andreas Schwab <schwab@suse.de> 2014-12-11 Andreas Schwab <schwab@suse.de>

8
nptl/tst-mutex6.c
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@ -21,6 +21,7 @@
#include <stdio.h> #include <stdio.h>
#include <unistd.h> #include <unistd.h>
#include <errno.h> #include <errno.h>
#include <stdbool.h>
#ifndef ATTR #ifndef ATTR
@ -28,6 +29,9 @@ pthread_mutexattr_t *attr;
# define ATTR attr # define ATTR attr
#endif #endif
#ifndef ATTR_NULL
# define ATTR_NULL (ATTR == NULL)
#endif
static int static int
do_test (void) do_test (void)
@ -35,7 +39,7 @@ do_test (void)
pthread_mutex_t m; pthread_mutex_t m;
int e = pthread_mutex_init (&m, ATTR); int e = pthread_mutex_init (&m, ATTR);
if (ATTR != NULL && e == ENOTSUP) if (!ATTR_NULL && e == ENOTSUP)
{ {
puts ("cannot support selected type of mutexes"); puts ("cannot support selected type of mutexes");
e = pthread_mutex_init (&m, NULL); e = pthread_mutex_init (&m, NULL);
@ -46,7 +50,7 @@ do_test (void)
return 1; return 1;
} }
if (ATTR != NULL && pthread_mutexattr_destroy (ATTR) != 0) if (!ATTR_NULL && pthread_mutexattr_destroy (ATTR) != 0)
{ {
puts ("mutexattr_destroy failed"); puts ("mutexattr_destroy failed");
return 1; return 1;

1
nptl/tst-mutexpp6.c
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@ -42,4 +42,5 @@ do_test_wrapper (void)
#define TEST_FUNCTION do_test_wrapper () #define TEST_FUNCTION do_test_wrapper ()
#define ATTR &a #define ATTR &a
#define ATTR_NULL false
#include "tst-mutex6.c" #include "tst-mutex6.c"