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comparison tests/test-memmem.c @ 40214:452ab00796c7

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Fix undefined behaviour. * lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to 'unsigned int', to avoid shift operations on 'int'. * lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size. * tests/test-count-leading-zeros.c (main): Use a random number that has as many bits as TYPE, not only 2*15 or 2*31 bits. * tests/test-count-trailing-zeros.c (main): Likewise. * tests/test-count-one-bits.c (main): Likewise. * tests/test-memmem.c: Don't include "null-ptr.h". (main): Use zerosize_ptr() instead of null_ptr(). * modules/memmem-tests (Files): Remove tests/null-ptr.h.
author Bruno Haible <bruno@clisp.org>
date Sat, 09 Mar 2019 20:32:25 +0100
parents b06060465f09
children
comparison
equal deleted inserted replaced
40213:cc3fed3b7788 40214:452ab00796c7
24 24
25 #include <signal.h> 25 #include <signal.h>
26 #include <stdlib.h> 26 #include <stdlib.h>
27 #include <unistd.h> 27 #include <unistd.h>
28 28
29 #include "null-ptr.h"
30 #include "zerosize-ptr.h" 29 #include "zerosize-ptr.h"
31 #include "macros.h" 30 #include "macros.h"
32 31
33 int 32 int
34 main (int argc, char *argv[]) 33 main (int argc, char *argv[])
79 ASSERT (result == NULL); 78 ASSERT (result == NULL);
80 } 79 }
81 80
82 { 81 {
83 const char input[] = "foo"; 82 const char input[] = "foo";
84 const char *result = memmem (input, strlen (input), null_ptr (), 0); 83 const char *result = memmem (input, strlen (input), zerosize_ptr (), 0);
85 ASSERT (result == input); 84 ASSERT (result == input);
86 } 85 }
87 86
88 /* Check that a long periodic needle does not cause false positives. */ 87 /* Check that a long periodic needle does not cause false positives. */
89 { 88 {