c_func.c

#include <stdio.h>

int foo0() {
    return 0;
}

int foo1(int a) {
    return a;
}

int foo2(int a, int b) {
    return a + b;
}

int foo3(int a, int b, int c) {
    return a + b + c;
}

int foo4(int a, int b, int c, int d) {
    return a + b + c + d;
}

int foo5(int a, int b, int c, int d, int f) {
    return a + b + c + d + f;
}

int foo6(int a, int b, int c, int d, int f, int g) {
    return a + b + c + d + f + g;
}