1STRCHR(3P) POSIX Programmer's Manual STRCHR(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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12 strchr — string scanning operation
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15 #include <string.h>
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17 char *strchr(const char *s, int c);
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20 The functionality described on this reference page is aligned with the
21 ISO C standard. Any conflict between the requirements described here
22 and the ISO C standard is unintentional. This volume of POSIX.1‐2017
23 defers to the ISO C standard.
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25 The strchr() function shall locate the first occurrence of c (converted
26 to a char) in the string pointed to by s. The terminating NUL charac‐
27 ter is considered to be part of the string.
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30 Upon completion, strchr() shall return a pointer to the byte, or a null
31 pointer if the byte was not found.
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34 No errors are defined.
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36 The following sections are informative.
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39 None.
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42 None.
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45 None.
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48 None.
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51 strrchr()
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53 The Base Definitions volume of POSIX.1‐2017, <string.h>
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56 Portions of this text are reprinted and reproduced in electronic form
57 from IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
58 table Operating System Interface (POSIX), The Open Group Base Specifi‐
59 cations Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of
60 Electrical and Electronics Engineers, Inc and The Open Group. In the
61 event of any discrepancy between this version and the original IEEE and
62 The Open Group Standard, the original IEEE and The Open Group Standard
63 is the referee document. The original Standard can be obtained online
64 at http://www.opengroup.org/unix/online.html .
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66 Any typographical or formatting errors that appear in this page are
67 most likely to have been introduced during the conversion of the source
68 files to man page format. To report such errors, see https://www.ker‐
69 nel.org/doc/man-pages/reporting_bugs.html .
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73IEEE/The Open Group 2017 STRCHR(3P)