ref: f0dc7b162e3c03dfd5628941f0d1048fa0fdfda9
dir: /doc/man3/strcspn.3/
.TH strcspn 3 .SH NAME strcspn - get length of complementary substring .SH SYNOPSIS #include <string.h> size_t strcspn(const char *s1, const char *s2) .SH DESCRIPTION The .BR strcspn () function computes the length of the maximum initial segment of string pointed to by .I s1 which consists entirely of characters not from the string pointed to by .IR s2 . .SH RETURN VALUE The .BR strcspn () function shall return the length of the segment. .SH STANDARDS ISO/IEC 9899:1999 Section 7.21.5.3