Originální popis anglicky:
strspn - get length of a substring
Návod, kniha: POSIX Programmer's Manual
size_t strspn(const char * s1, const char
() function shall compute the length (in bytes) of the maximum
initial segment of the string pointed to by s1
which consists entirely
of bytes from the string pointed to by s2
() function shall return the length of s1
; no return
value is reserved to indicate an error.
No errors are defined.
The following sections are informative.
() , the Base Definitions volume of
IEEE Std 1003.1-2001, <string.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any discrepancy between
this version and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.opengroup.org/unix/online.html