20 lines
369 B
C
20 lines
369 B
C
/*
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* Return the number of characters in the maximum leading segment
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* of string which consists solely of characters NOT from charset.
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*/
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int
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strcspn(string, charset)
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char *string;
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register char *charset;
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{
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register char *p, *q;
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for(q=string; *q != '\0'; ++q) {
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for(p=charset; *p != '\0' && *p != *q; ++p)
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;
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if(*p != '\0')
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break;
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}
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return(q-string);
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}
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