在VScode、macOS中合并两个C程序文件

Question

I got two C program files, a basic code main.c and function.c

the function.c file contains the function which I need to call in main.c file i've tried merging files using -o the error appears to be : liker not found, although all the libraries and stuff are perfectly present in my system.

I'am facing this problem in vsCode in macOS.

Answer 1

Let's begin with taking an example in the attachment there are two pictures if you see the picture which has code for one.c there I have used a line

---

#include "two.c"

Just to tell the compiler that I want to see every single definition in two. c

---

In file one.c I have called a function named print which is defined in two. c

---

One thing that can be noticed and is a really important observation is that in two.c , the file from where definitions needed to be called doesn't have a main function . Can you guess why? The reason is simply because when you click on one.c your system will call the main function located in one.c . Upon seeing two main functions on the second file it gets confused and throws error, and just think why you even need the main function in two.c . There is no need because we use the main function just to perform certain actions and in two.c you really don't need to perform any action but you only need a function to be exported on another file.

---

In your case, you need to eliminate the main function from the function .c file and in main .c just include the path of your function .c