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af359dea | 1 | .\" Copyright (c) 1990, 1991 The Regents of the University of California. |
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2 | .\" All rights reserved. |
3 | .\" | |
4 | .\" This code is derived from software contributed to Berkeley by | |
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5 | .\" Chris Torek and the American National Standards Committee X3, |
6 | .\" on Information Processing Systems. | |
f1dde4e0 | 7 | .\" |
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8 | .\" Redistribution and use in source and binary forms, with or without |
9 | .\" modification, are permitted provided that the following conditions | |
10 | .\" are met: | |
11 | .\" 1. Redistributions of source code must retain the above copyright | |
12 | .\" notice, this list of conditions and the following disclaimer. | |
13 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
14 | .\" notice, this list of conditions and the following disclaimer in the | |
15 | .\" documentation and/or other materials provided with the distribution. | |
16 | .\" 3. All advertising materials mentioning features or use of this software | |
17 | .\" must display the following acknowledgement: | |
18 | .\" This product includes software developed by the University of | |
19 | .\" California, Berkeley and its contributors. | |
20 | .\" 4. Neither the name of the University nor the names of its contributors | |
21 | .\" may be used to endorse or promote products derived from this software | |
22 | .\" without specific prior written permission. | |
23 | .\" | |
24 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | .\" SUCH DAMAGE. | |
f1dde4e0 | 35 | .\" |
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36 | .\" @(#)strspn.3 5.3 (Berkeley) 6/29/91 |
37 | .\" | |
38 | .Dd June 29, 1991 | |
39 | .Dt STRSPN 3 | |
40 | .Os | |
41 | .Sh NAME | |
42 | .Nm strspn | |
43 | .Nd span a string | |
44 | .Sh SYNOPSIS | |
45 | .Fd #include <string.h> | |
46 | .Ft size_t | |
47 | .Fn strspn "const char *s" "const char *charset" | |
48 | .Sh DESCRIPTION | |
49 | The | |
50 | .Xr strcspn | |
51 | function | |
f1dde4e0 | 52 | spans the initial part of the null-terminated string |
af359dea | 53 | .Fa s |
f1dde4e0 | 54 | as long as the characters from |
af359dea | 55 | .Fa s |
f1dde4e0 | 56 | occur in string |
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57 | .Fa charset . |
58 | .Sh RETURN VALUES | |
59 | The | |
60 | .Fn strspn | |
61 | function | |
f1dde4e0 | 62 | returns the number of characters spanned. |
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63 | .Sh SEE ALSO |
64 | .Xr index 3 , | |
65 | .Xr memchr 3 , | |
66 | .Xr rindex 3 , | |
67 | .Xr strchr 3 , | |
68 | .Xr strcspn 3 , | |
69 | .Xr strpbrk 3 , | |
70 | .Xr strrchr 3 , | |
71 | .Xr strsep 3 , | |
72 | .Xr strstr 3 , | |
73 | .Xr strtok 3 | |
74 | .Sh STANDARDS | |
75 | The | |
76 | .Fn strspn | |
77 | function | |
78 | conforms to | |
79 | .St -ansiC . |