Don't run %check on FC4. It lacks sha256sum.
[util-vserver.git] / lib_internal / util-isnumber.hc
1 // $Id: util-isnumber.hc 2255 2006-01-22 11:23:47Z ensc $    --*- c -*--
2
3 // Copyright (C) 2006 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
4 //  
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; version 2 of the License.
8 //  
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 // GNU General Public License for more details.
13 //  
14 // You should have received a copy of the GNU General Public License
15 // along with this program; if not, write to the Free Software
16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18 #include <stdbool.h>
19 #include <stdlib.h>
20 #include <errno.h>
21
22 #define ENSC_DECL_UTIL_ISNUMBER(NAME,TYPE,FUNC)                 \
23   bool                                                          \
24   NAME(char const *str, TYPE *result, bool is_strict)           \
25   {                                                             \
26     char *              errptr;                                 \
27     TYPE                val;                                    \
28     unsigned int        fac = 1;                                \
29                                                                 \
30     errno = 0;                                                  \
31     val   = FUNC(str, &errptr, 0);                              \
32     if (errno==ERANGE)                                          \
33       return false;                                             \
34     if (errptr!=str && !is_strict) {                            \
35       switch (*errptr) {                                        \
36         case 'M'        :  fac *= 1024; /* fallthrough */       \
37         case 'K'        :  fac *= 1024; ++errptr; break;        \
38         case 'm'        :  fac *= 1000; /* fallthrough */       \
39         case 'k'        :  fac *= 1000; ++errptr; break;        \
40         default :  break;                                       \
41       }                                                         \
42     }                                                           \
43     if (!checkConstraints(val,fac))                             \
44       return false;                                             \
45                                                                 \
46     if (*errptr!='\0' || errptr==str)                           \
47       return false;                                             \
48     else {                                                      \
49       if (result) *result = val*fac;                            \
50       return true;                                              \
51     }                                                           \
52   }