c++ get environment variable
#include <iostream>
#include <cstdlib>
int main() {
char* env_var = std::getenv("MY_ENV_VARIABLE");
if (env_var != nullptr) {
std::cout << "The value of MY_ENV_VARIABLE is: " << env_var << std::endl;
} else {
std::cout << "MY_ENV_VARIABLE is not set." << std::endl;
}
return 0;
}