musl/src/string/strncasecmp.c

#include <strings.h>
#include <ctype.h>

int strncasecmp(const char *_l, const char *_r, size_t n)
{
	const unsigned char *l=(void *)_l, *r=(void *)_r;
	if (!n--) return 0;
	for (; *l && *r && n && (*l == *r || tolower(*l) == tolower(*r)); l++, r++, n--);
	return tolower(*l) - tolower(*r);
}
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#include <strings.h>`
			`#include <ctype.h>`

			`int strncasecmp(const char _l, const char _r, size_t n)`
			`{`
fix all implicit conversion between signed/unsigned pointers 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. 2011-03-25 16:34:03 -04:00			`const unsigned char l=(void )_l, r=(void )_r;`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`if (!n--) return 0;`
			`for (; l && r && n && (l == r \|\| tolower(l) == tolower(r)); l++, r++, n--);`
			`return tolower(l) - tolower(r);`
			`}`