n2a.c

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#ifdef PRINTF_TEST
 
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
 
#include "mathio.h"
 
void test10(long long max)
{
    long long val;
    long long s;
    printf("testing mul10str() function: (%lld) values\n", max);
    for(val=0;val<max;++val)
    {
        s = val;
        mul10str((uint8_t *) &s, sizeof(s));
        if(s != (val * 10))
            printf("%lld * 10 = %lld, != %lld\n", val, (val * 10), s);
    }
    printf("Done %lld tests\n\n", val);
}
 
 
int main(int argc, char *argv[])
{
 
    int len;
    int size;
    int sign_ch;
    char line[1024];
    char numresult[1024];
    long long val;
    __int128_t val2;
 
    printf("sizeof(long) = %d\n", (int) sizeof(long));
    printf("sizeof(long long) = %d\n", (int) sizeof(long long));
    printf("sizeof(val) = %d\n", (int) sizeof(val));
    printf("sizeof(__uint128_t) = %d\n", (int) sizeof(__uint128_t));
    printf("sizeof( intmax_t ) == %d\n", (int) sizeof( intmax_t ));
 
    test10(1000000LL);
 
    while(1)
    {
        printf("Enter a number or ENTER to quit:");
        fgets(line, 1020,stdin);
        len = strlen(line);
        while(len)
        {
            --len;
            if(line[len] < ' ')
                line[len] = 0;
        }
        if(!*line)
            break;
        sign_ch = 0;
        val2 = strto128(line, NULL, 10);
        if(val2 < (__int128_t) 0)
        {
            sign_ch = '-';
            val2 = -val2;
        }
        size = bin2num(numresult, 1022, 1, 10, (uint8_t *) &val2, sizeof(val2), sign_ch);
//dump(numresult,size);
        printf("numresult[%s]\n",numresult);
    }
}
#endif