Copyright 1993 David Metcalfe (firstname.lastname@example.org) %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Sin...
NAMEstrspn, strcspn - get length of a prefix substring
#include <string.h> size_t strspn(const char *s, const char *accept); size_t strcspn(const char *s, const char *reject);
DESCRIPTIONThe strspn() function calculates the length (in bytes) of the initial segment of s which consists entirely of bytes in accept.
The strcspn() function calculates the length of the initial segment of s which consists entirely of bytes not in reject.
RETURN VALUEThe strspn() function returns the number of bytes in the initial segment of s which consist only of bytes from accept.
The strcspn() function returns the number of bytes in the initial segment of s which are not in the string reject.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
|strspn(), strcspn()||Thread safety||MT-Safe|