C/C++ Users Group Library 1996 July/C-C++ Users Group Library July 1996.iso/vol_200/273_01/testnum.cc

C/C++ Source or Header | 1988-02-24 | 119b | 9 lines

#include <ctype.h>
test_numeric(char *str)
{
    while(*str) {
        if(!isdigit(*str++)) return(1);
    }
    return(0);
}