strspn(3) [minix man page]

STRSPN(3)						     Linux Programmer's Manual							 STRSPN(3)

NAME

       strspn, strcspn - get length of a prefix substring

SYNOPSIS

       #include <string.h>

       size_t strspn(const char *s, const char *accept);

       size_t strcspn(const char *s, const char *reject);

DESCRIPTION

       The 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 VALUE

       The 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.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +--------------------+---------------+---------+
       |Interface	    | Attribute     | Value   |
       +--------------------+---------------+---------+
       |strspn(), strcspn() | Thread safety | MT-Safe |
       +--------------------+---------------+---------+
CONFORMING TO

       POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.

SEE ALSO

       index(3), memchr(3), rindex(3), strchr(3), string(3), strpbrk(3), strsep(3), strstr(3), strtok(3), wcscspn(3), wcsspn(3)

COLOPHON

       This  page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

								    2015-08-08								 STRSPN(3)

strspn(3)						     Library Functions Manual							 strspn(3)

NAME

       strcspn, strspn - Returns length of initial segment of string

LIBRARY

       Standard C Library (libc.so, libc.a)

SYNOPSIS

       #include <string.h>

       size_t strcspn(
	       const char *s1,
	       const char *s2);

       size_t strspn(
	       const char *s1,
	       const char *s2);

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       strcspn(), strspn():  XSH4.2

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

PARAMETERS

       Points  to  a  character string being checked for an initial segment.  Points to a string containing a set of bytes that define the initial
       segment.

DESCRIPTION

       The strspn() function computes the length of the maximum initial segment of the string pointed to  by  the  s1  parameter,  which  consists
       entirely of bytes from the string pointed to by the s2 parameter.

       The strcspn() function computes the byte length of the maximum initial segment of the string pointed to by the s1 parameter, which consists
       entirely of bytes that are not from the string pointed to by the s2 parameter.

       The strspn() and strcspn() functions treat the s2 parameter as a series of bytes; these functions do not treat a multibyte character  as  a
       single  unit  but rather as a series of separate bytes. There are no equivalent functions for multibyte character strings. The wcsspn() and
       wcscspn() functions provide the same functionality for wide character strings.

RETURN VALUES

       Upon successful completion, the strcspn(), and strspn() functions return the length of the string segment.

       [Tru64 UNIX]  On error, a value of -1 cast to size_t is returned.

RELATED INFORMATION

       Functions: string(3), wcsspn(3)/wcscspn(3)

       Standards: standards(5) delim off

																	 strspn(3)