[julia-users] linking Julia with C to improve performances

[giovanni . msla]

Hello,

I am a beginner to Julia and would like to try out some features. I would 
like to improve performances of some bottleneck functions by translating 
them into C.
A simple example is :
main.jl

a ::Int64 = 20      
b ::Int64 = 10
ccall(:do_sum, Int64, (Int64, Int64), a, b)



test.c
#include <stdio.h>

int do_sum (int a,int b)
{
int c;
c = a+b;
printf("f\n:",c);
return c;
}

where should I put the C file ? 

Thanks,
G.