1STRCSPN(3P) POSIX Programmer's Manual STRCSPN(3P)
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6 This manual page is part of the POSIX Programmer's Manual. The Linux
7 implementation of this interface may differ (consult the corresponding
8 Linux manual page for details of Linux behavior), or the interface may
9 not be implemented on Linux.
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13 strcspn — get the length of a complementary substring
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16 #include <string.h>
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18 size_t strcspn(const char *s1, const char *s2);
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21 The functionality described on this reference page is aligned with the
22 ISO C standard. Any conflict between the requirements described here
23 and the ISO C standard is unintentional. This volume of POSIX.1‐2008
24 defers to the ISO C standard.
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26 The strcspn() function shall compute the length (in bytes) of the maxi‐
27 mum initial segment of the string pointed to by s1 which consists
28 entirely of bytes not from the string pointed to by s2.
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31 The strcspn() function shall return the length of the computed segment
32 of the string pointed to by s1; no return value is reserved to indicate
33 an error.
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36 No errors are defined.
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38 The following sections are informative.
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41 None.
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44 None.
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47 None.
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50 None.
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53 strspn()
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55 The Base Definitions volume of POSIX.1‐2008, <string.h>
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58 Portions of this text are reprinted and reproduced in electronic form
59 from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
60 -- Portable Operating System Interface (POSIX), The Open Group Base
61 Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
62 cal and Electronics Engineers, Inc and The Open Group. (This is
63 POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
64 event of any discrepancy between this version and the original IEEE and
65 The Open Group Standard, the original IEEE and The Open Group Standard
66 is the referee document. The original Standard can be obtained online
67 at http://www.unix.org/online.html .
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69 Any typographical or formatting errors that appear in this page are
70 most likely to have been introduced during the conversion of the source
71 files to man page format. To report such errors, see https://www.ker‐
72 nel.org/doc/man-pages/reporting_bugs.html .
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76IEEE/The Open Group 2013 STRCSPN(3P)