/********************************************************************** * Copyright (c) Digital Equipment Corporation 1984, 1985, 1986. * * All Rights Reserved. * * Reference "/usr/src/COPYRIGHT" for applicable restrictions. * **********************************************************************/ static char Sccsid[]="@(#)patol.c 3.0 4/22/86"; /* Function to convert ascii string to long. Converts positive numbers only. Returns -1 if non-numeric character encountered. */ long patol(s) register char *s; { long i; i = 0; while (*s >= '0' && *s <= '9') i = 10*i + *s++ - '0'; if (*s) return(-1); return(i); }