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1 | .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) |
2 | .\" | |
3 | .\" Permission is granted to make and distribute verbatim copies of this | |
4 | .\" manual provided the copyright notice and this permission notice are | |
5 | .\" preserved on all copies. | |
6 | .\" | |
7 | .\" Permission is granted to copy and distribute modified versions of this | |
8 | .\" manual under the conditions for verbatim copying, provided that the | |
9 | .\" entire resulting derived work is distributed under the terms of a | |
10 | .\" permission notice identical to this one. | |
11 | .\" | |
12 | .\" Since the Linux kernel and libraries are constantly changing, this | |
13 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
14 | .\" responsibility for errors or omissions, or for damages resulting from | |
15 | .\" the use of the information contained herein. The author(s) may not | |
16 | .\" have taken the same level of care in the production of this manual, | |
17 | .\" which is licensed free of charge, as they might when working | |
18 | .\" professionally. | |
19 | .\" | |
20 | .\" Formatted or processed versions of this manual, if unaccompanied by | |
21 | .\" the source, must acknowledge the copyright and authors of this work. | |
22 | .\" | |
23 | .\" References consulted: | |
24 | .\" Linux libc source code | |
25 | .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) | |
26 | .\" 386BSD man pages | |
27 | .\" Modified Sat Jul 24 17:57:50 1993 by Rik Faith (faith@cs.unc.edu) | |
28 | .TH STRSPN 3 1993-04-12 "" "Linux Programmer's Manual" | |
29 | .SH NAME | |
30 | strspn, strcspn \- search a string for a set of characters | |
31 | .SH SYNOPSIS | |
32 | .nf | |
33 | .B #include <string.h> | |
34 | .sp | |
35 | .BI "size_t strspn(const char *" s ", const char *" accept ); | |
36 | .sp | |
37 | .BI "size_t strcspn(const char *" s ", const char *" reject ); | |
38 | .fi | |
39 | .SH DESCRIPTION | |
63aa9df0 | 40 | The \fBstrspn\fP() function calculates the length of the initial |
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41 | segment of \fIs\fP which consists entirely of characters in |
42 | \fIaccept\fP. | |
43 | .PP | |
63aa9df0 | 44 | The \fBstrcspn\fP() function calculates the length of the initial |
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45 | segment of \fIs\fP which consists entirely of characters not in |
46 | \fIreject\fP. | |
47 | .SH "RETURN VALUE" | |
63aa9df0 | 48 | The \fBstrspn\fP() function returns the number of characters in |
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49 | the initial segment of \fIs\fP which consist only of characters |
50 | from \fIaccept\fP. | |
51 | .PP | |
63aa9df0 | 52 | The \fBstrcspn\fP() function returns the number of characters in |
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53 | the initial segment of \fIs\fP which are not in the string |
54 | \fIreject\fP. | |
55 | .SH "CONFORMING TO" | |
b14d4aa5 | 56 | SVID 3, POSIX, 4.3BSD, ISO 9899 |
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57 | .SH "SEE ALSO" |
58 | .BR index (3), | |
59 | .BR memchr (3), | |
60 | .BR rindex (3), | |
61 | .BR strchr (3), | |
62 | .BR strpbrk (3), | |
63 | .BR strsep (3), | |
64 | .BR strstr (3), | |
65 | .BR strtok (3) |