Rev 3271 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
1173 | cejka | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2006 Josef Cejka |
1173 | cejka | 3 | * All rights reserved. |
4 | * |
||
5 | * Redistribution and use in source and binary forms, with or without |
||
6 | * modification, are permitted provided that the following conditions |
||
7 | * are met: |
||
8 | * |
||
9 | * - Redistributions of source code must retain the above copyright |
||
10 | * notice, this list of conditions and the following disclaimer. |
||
11 | * - Redistributions in binary form must reproduce the above copyright |
||
12 | * notice, this list of conditions and the following disclaimer in the |
||
13 | * documentation and/or other materials provided with the distribution. |
||
14 | * - The name of the author may not be used to endorse or promote products |
||
15 | * derived from this software without specific prior written permission. |
||
16 | * |
||
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
27 | */ |
||
28 | |||
1866 | jermar | 29 | /** @addtogroup libc |
1653 | cejka | 30 | * @{ |
31 | */ |
||
32 | /** @file |
||
33 | */ |
||
34 | |||
1866 | jermar | 35 | #ifndef LIBC_CTYPE_H_ |
36 | #define LIBC_CTYPE_H_ |
||
1173 | cejka | 37 | |
2526 | jermar | 38 | static inline int islower(int c) |
39 | { |
||
40 | return ((c >= 'a') && (c <= 'z')); |
||
41 | } |
||
42 | |||
43 | static inline int isupper(int c) |
||
44 | { |
||
45 | return ((c >= 'A') && (c <= 'Z')); |
||
46 | } |
||
47 | |||
2524 | jermar | 48 | static inline int isalpha(int c) |
49 | { |
||
2526 | jermar | 50 | return (islower(c) || isupper(c)); |
2524 | jermar | 51 | } |
52 | |||
1173 | cejka | 53 | static inline int isdigit(int c) |
54 | { |
||
2524 | jermar | 55 | return ((c >= '0') && (c <= '9')); |
1173 | cejka | 56 | } |
57 | |||
2525 | jermar | 58 | static inline int isalnum(int c) |
59 | { |
||
60 | return (isalpha(c) || isdigit(c)); |
||
61 | } |
||
62 | |||
1314 | cejka | 63 | static inline int isspace(int c) |
64 | { |
||
2525 | jermar | 65 | switch (c) { |
2128 | jermar | 66 | case ' ': |
67 | case '\n': |
||
68 | case '\t': |
||
69 | case '\f': |
||
70 | case '\r': |
||
71 | case '\v': |
||
72 | return 1; |
||
73 | break; |
||
74 | default: |
||
75 | return 0; |
||
1314 | cejka | 76 | } |
77 | } |
||
78 | |||
3271 | jermar | 79 | static inline int tolower(int c) |
80 | { |
||
81 | if (isupper(c)) |
||
82 | return (c + ('a' - 'A' > 0 ? 'a' - 'A' : 'A' - 'a')); |
||
83 | else |
||
84 | return c; |
||
85 | } |
||
86 | |||
1173 | cejka | 87 | #endif |
88 | |||
1866 | jermar | 89 | /** @} |
1653 | cejka | 90 | */ |