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STRSPN(3)                BSD 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 *s1, const char *s2);

DESCRIPTION
     The strspn() function spans the initial part of the null-terminated string s1, as long as the charac-ters characters
     ters from s1 occur in string s2.

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'').

BSD                              June 4, 1993                              BSD