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strcspn.c
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C/C++ Source or Header
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1992-09-17
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504b
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27 lines
/* from Henry Spencer's stringlib */
#include <string.h>
/*
* strcspn - find length of initial segment of s consisting entirely
* of characters not from reject
*/
size_t
strcspn(s, reject)
const char *s;
const char *reject;
{
register const char *scan;
register const char *rscan;
register size_t count;
count = 0;
for (scan = s; *scan != '\0'; scan++) {
for (rscan = reject; *rscan != '\0';) /* ++ moved down. */
if (*scan == *rscan++)
return(count);
count++;
}
return(count);
}