Pass Matlab parameters to a C program

Question

I wrote a simple C program which takes a command line argument and displays that argument:

#include <stdio.h>
#include <stdlib.h>

int main(int argc,char *argv[]){
if(argc<2){return 0;}
else{
    double x=atof(argv[1]);
    printf("%f\n",x);
    return 0;
    }
}

Now I want to run this program from within Matlab using the system() function:

>> x=3.14;

>> cmd=['/path/to/program/./test',x]

cmd =

/path/to/program/./test

>> [status,cmdout]=system(cmd)

status =

127


cmdout =

/bin/bash: /path/to/program/./test: No such file or directory

This doesn't seem to work when I try it. I really don't know how to solve this. I'm using a Mac. Thanks in advance.

Answer 1

try:

x=3.14;
cmd=['/path/to/program/./test ',num2str(x)];
[status,cmdout]=system(cmd)

and '/path/to/program/' looks strange -- is test really located in /path/to/program/ ?