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b79f73df JL |
1 | /* Implement string-related runtime actions for CHILL. |
2 | Copyright (C) 1992,1993 Free Software Foundation, Inc. | |
3 | Author: Bill Cox | |
4 | ||
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU CC; see the file COPYING. If not, write to | |
201853b4 JL |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
b79f73df | 21 | |
502b941f JL |
22 | /* As a special exception, if you link this library with other files, |
23 | some of which are compiled with GCC, to produce an executable, | |
24 | this library does not by itself cause the resulting executable | |
25 | to be covered by the GNU General Public License. | |
26 | This exception does not however invalidate any other reasons why | |
27 | the executable file might be covered by the GNU General Public License. */ | |
28 | ||
b79f73df JL |
29 | #define MIN(a, b) ((a) < (b) ? (a) : (b)) |
30 | ||
31 | /* | |
32 | * function __ltstring | |
33 | * | |
34 | * parameters: | |
35 | * S1 - pointer to left string | |
36 | * LEN1 - length of left string | |
37 | * S2 - pointer to right string | |
38 | * LEN2 - length of right string | |
39 | * | |
40 | * returns: | |
41 | * 1 if left string is a proper subset of the right string, 0 otherwise | |
42 | * | |
43 | * exceptions: | |
44 | * none | |
45 | * | |
46 | * abstract: | |
47 | * compares two character strings for subset relationship | |
48 | * | |
49 | */ | |
50 | ||
51 | int __ltstring (s1, len1, s2, len2) | |
52 | char *s1; | |
53 | int len1; | |
54 | char *s2; | |
55 | int len2; | |
56 | { | |
57 | int i; | |
58 | ||
59 | i = memcmp (s1, s2, MIN (len1, len2)); | |
60 | if (i) | |
61 | return (i < 0); | |
62 | return (len1 < len2); | |
63 | } |