I want to run my multi-file C project in VSC using the CodeRunner extension instead of having to use the command line to create an executable. I want to see the output directly in the VSC terminal window.
When I try to do Run Code on my main file, I get the following error message:
C:\Users\223094~1\AppData\Local\Temp\cciAWyDb.o:main.c:(.text+0x1e): undefined reference to `foo'
collect2.exe: error: ld returned 1 exit status
I am able to get the code to run through the command line by running
gcc main.c foo.c -o program and then ./program which gives me the correct output.
I have attached my code below:
//main.c
#include "foo.h"
int main(void)
{
foo(42, "bar");
return 0;
}
//foo.c
#include "foo.h" /* Always include the header file that declares something
* in the C file that defines it. This makes sure that the
* declaration and definition are always in-sync. Put this
* header first in foo.c to ensure the header is self-contained.
*/
#include <stdio.h>
/**
* This is the function definition.
* It is the actual body of the function which was declared elsewhere.
*/
void foo(int id, char *name)
{
printf("Hello World");
fprintf(stderr, "foo(%d, \"%s\");\n", id, name);
/* This will print how foo was called to stderr - standard error.
* e.g., foo(42, "Hi!") will print `foo(42, "Hi!")`
*/
}
//foo.h
#ifndef FOO_DOT_H /* This is an "include guard" */
#define FOO_DOT_H /* prevents the file from being included twice. */
/* Including a header file twice causes all kinds */
/* of interesting problems.*/
/**
* This is a function declaration.
* It tells the compiler that the function exists somewhere.
*/
void foo(int id, char *name);
#endif /* FOO_DOT_H */
