Conversion Type Question ?

[cisokay]

I'm trying to run my program and have it convert the values in the command line to doubles.

Test Run:

./prog fname -v 1.0 2.0 3.0 4.0

But what I get is either extremely large values or the values after the decimal are truncated.

I've tried atol(),strtol() and even strolf()

Any suggestions would help.

#include <stdio.h>

int main(int argc, char** argv)
{
        const char *filename;
        FILE *file;
        double val0,val1,val2,val3;

  if(argv[2][0] == '-' && argv[2][1] == 'v' && argc == 7)
  {
        filename = argv[1];
        file = fopen(filename, "r");
        val0 = atof(argv[3],sizeof(argv[3]));
        val1 = atof(argv[4],sizeof(argv[4]));
        val2 = atof(argv[5],sizeof(argv[5]));
        val3 = atof(argv[6],sizeof(argv[6]));

        printf(">>>>>>>>>>>\n");
        printf("%f %f %f %f\n",val0,val1,val2,val3);
        printf(">>>>>>>>>>>\n");
  }

    return(0);
}

[rpet]

1. Use the correct header file

#include <stdlib.h>

2. atof() has one argument, not two

val0 = atof(argv[3]);