This commit was generated by cvs2svn to compensate for changes in r2562,

[util-vserver.git] / lib_internal / util-isnumber.hc

diff --git a/lib_internal/util-isnumber.hc b/lib_internal/util-isnumber.hc
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+// $Id: util-isnumber.hc 2255 2006-01-22 11:23:47Z ensc $    --*- c -*--
+
+// Copyright (C) 2006 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//  
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//  
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//  
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#define ENSC_DECL_UTIL_ISNUMBER(NAME,TYPE,FUNC)                        \
+  bool                                                         \
+  NAME(char const *str, TYPE *result, bool is_strict)          \
+  {                                                            \
+    char *             errptr;                                 \
+    TYPE               val;                                    \
+    unsigned int       fac = 1;                                \
+                                                               \
+    errno = 0;                                                 \
+    val   = FUNC(str, &errptr, 0);                             \
+    if (errno==ERANGE)                                         \
+      return false;                                            \
+    if (errptr!=str && !is_strict) {                           \
+      switch (*errptr) {                                       \
+       case 'M'        :  fac *= 1024; /* fallthrough */       \
+       case 'K'        :  fac *= 1024; ++errptr; break;        \
+       case 'm'        :  fac *= 1000; /* fallthrough */       \
+       case 'k'        :  fac *= 1000; ++errptr; break;        \
+       default :  break;                                       \
+      }                                                                \
+    }                                                          \
+    if (!checkConstraints(val,fac))                            \
+      return false;                                            \
+                                                               \
+    if (*errptr!='\0' || errptr==str)                          \
+      return false;                                            \
+    else {                                                     \
+      if (result) *result = val*fac;                           \
+      return true;                                             \
+    }                                                          \
+  }