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fix all implicit conversion between signed/unsigned pointers

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sadly the C language does not specify any such implicit conversion, so
this is not a matter of just fixing warnings (as gcc treats it) but
actual errors. i would like to revisit a number of these changes and
possibly revise the types used to reduce the number of casts required.
This commit is contained in:
Rich Felker
2011-03-25 16:34:03 -04:00
parent a37452430f
commit 9ae8d5fc71
19 changed files with 44 additions and 48 deletions
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10
src/string/strcspn.c
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@ -3,18 +3,16 @@
#define BITOP(a,b,op) \
((a)[(size_t)(b)/(8*sizeof *(a))] op (size_t)1<<((size_t)(b)%(8*sizeof *(a))))
size_t strcspn(const char *_s, const char *_c)
size_t strcspn(const char *s, const char *c)
{
const unsigned char *s = _s;
const unsigned char *c = _c;
const unsigned char *a = s;
const char *a = s;
size_t byteset[32/sizeof(size_t)];
if (!c[0]) return strlen(s);
if (!c[1]) return (s=strchr(s, *c)) ? s-a : strlen(a);
memset(byteset, 0, sizeof byteset);
for (; *c && BITOP(byteset, *c, |=); c++);
for (; *s && !BITOP(byteset, *s, &); s++);
for (; *c && BITOP(byteset, *(unsigned char *)c, |=); c++);
for (; *s && !BITOP(byteset, *(unsigned char *)s, &); s++);
return s-a;
}