Mixing C and C++ in one file.
27 Nov 2022I had to mix C and C++ because I was using a C library for something, and forgot the syntax. IsoCPP has the guide; the short answer is to declare C functions as extern "C".
Here’s a short MWE:
#include <stdio.h>
#include <execinfo.h>
#include <stdlib.h>
#include <iostream>
#include <string>
using namespace std;
extern "C" {
void cfunction(char *arg) {
printf("In C function, char argument %s\n", arg);
}
}
int main(int argc, char **argv) {
cfunction("test0");
}
Compile with g++ -g -std=c++11 mixccplusplus.cpp -o mixtest.