Compile project with multiple files . c in Vscode - C language

Question

Good afternoon, I’m having trouble separating my code into . c and . h in Vscode.

Follows the implementation:

main. c

#include "head.h"

int main(){
    printar(5);
}

head. h

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

void printar(int x);

head. c

#include "head.h"

void printar(int x){
    printf("\n%d", x);
}

When I try to compile in Vscode, I get the following error:

Undefined Reference to `Printer`

Answer 1

The "C/C++ Compile Run" extension you are using only allows you to compile and run one file only, as indicated in own repository:

Compile & Run single c/c++ files easly on vscode

And so with this extension you will not be able to. However you can use the extension Code Runner which will already allow you to compile with multiple files, as well as compile into languages other than C or C++.

After having installed, access the extension settings by clicking on the sprocket of the same and accessing Settings.

On the screen of Settings access the Map Executor edit option, as shown in the following figure:

Add the following block before the } closing file:

,
"code-runner.executorMap": {
    "c": "cd $dir && gcc *.c -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
}

The archive should look similar to the following:

Note that there should be a comma separating the new option from the last one already in the file.

Now just go to the arrow to compile and run:

The option placed in the file compiles all . c that are in the folder you are running in, so you can later change that build statement to another one if you need to. How the execution is by the folder where it is, you must ensure that you have opened in Vscode with "Open Folder" the folder that has your files . c to be compiled.

It is also useful to mention that the added instruction is valid for compiling with gcc, and so you have to adjust it if you are compiling with other compilers like Clang.

Additionally the instruction also assumes that gcc is available in PATH, either windows or linux.

The multi-file build instruction with gcc, the *.c, is not supported in older versions of gcc, and so it is recommended that you have a minimally current version of gcc (something like version 7 or higher).