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STRSPN(3)	      DragonFly Library Functions Manual	     STRSPN(3)

NAME

strspn -- span a string

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <string.h> size_t strspn(const char *s, const char *charset);

DESCRIPTION

The strspn() function spans the initial part of the null-terminated string s as long as the characters from s occur in the null-terminated string charset. In other words, it computes the string array index in s of the first character of s which is not in charset, else the index of the first null character.

RETURN VALUES

The strspn() function returns the number of characters spanned.

SEE ALSO

memchr(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strstr(3), strtok(3)

STANDARDS

The strspn() function conforms to ISO/IEC 9899:1990 (``ISO C90''). DragonFly 3.7 June 4, 1993 DragonFly 3.7