diplodocus.org Git - nmh/blob - docs/historical/mh-6.8.5/sbr/m_atoi.c

   1 /* m_atoi.c - parse a string representation of a message number */
   2 #ifndef lint
   3 static char ident[] = "@(#)$Id: m_atoi.c,v 1.2 1992/10/26 22:52:05 jromine Exp $";
   4 #endif /* lint */
   5
   6 #include "../h/mh.h"
   7
   8
   9 m_atoi (str)
  10 register char *str;
  11 {
  12     register int    i;
  13     register char  *cp;
  14
  15     i = 0;
  16     cp = str;
  17 #ifdef LOCALE
  18     while (isdigit(*cp)) {
  19         i *= 10;
  20         i += *cp++ - '0';
  21     }
  22 #else
  23     while (*cp) {
  24         if (*cp < '0' || *cp > '9')
  25             return 0;
  26         i *= 10;
  27         i += *cp++ - '0';
  28     }
  29 #endif
  30
  31     return i;
  32 }