strspn
span a string
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NAME
strspn
INTERFACE
#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 string charset.
RETURN VALUES
The strspn function returns the number of characters spanned.
SEE ALSO
memchr (3) , strchr (3) , strcspn (3) , strpbrk (3) , strrchr (3) , reference:strsep (3) , strstr (3) , strtok (3)
STANDARDS
The strspn function conforms to