BSD 4_4_Lite1 release

[unix-history] / usr / src / contrib / mh-6.8.3a / sbr / m_atoi.c

/* m_atoi.c - parse a string representation of a message number */
#ifndef lint
static char ident[] = "@(#)$Id: m_atoi.c,v 1.2 1992/10/26 22:52:05 jromine Exp $";
#endif /* lint */

#include "../h/mh.h"


m_atoi (str)
register char *str;
{
   register int    i;
   register char  *cp;

   i = 0;
   cp = str;
#ifdef LOCALE
   while (isdigit(*cp)) {
       i *= 10;
       i += *cp++ - '0';
   }
#else
   while (*cp) {
       if (*cp < '0' || *cp > '9')
           return 0;
       i *= 10;
       i += *cp++ - '0';
   }
#endif

   return i;
}