Can't load a dll file using LoadLibrary function - c++

Question

So I was trying to make a program that dynamically creates a dll file and loads it into the program and calls it.
Here is my code for
createFile:
void createFile(std::string data, std::string name) {
std::ofstream file;
name += ".cpp";
file.open(name,std::ofstream::out);
if (file.is_open()) {
file << data;
std::cout << "File saved successfully" << std::endl;
file.close();
}
else {
std::cout << "Error opening file" << std::endl;
exit(1);
}
}
compile:
void compile(std::string name) {
std::string temp;
temp = "c++.exe " + name + ".cpp -o dll/" + name + ".dll -shared -fPIC";
system(temp.c_str());
}
loadFunc:
typedef void (*function)(const char*);
void loadFunc(LPCSTR name, LPCSTR func) {
HMODULE temp;
function __cdecl myproc;
temp = LoadLibraryA(name);
if (temp != NULL) {
std::cout << "\nDll is loaded";
myproc = (function) GetProcAddress(temp, func);
if (myproc !=NULL)
{
std::cout << "\nFunction is loaded\n";
(myproc)("Somthing here");
}
// Free the DLL module.
FreeLibrary(temp);
}
}
The problem is when I compile a dll using visual studio 2019 it works just fine, but if I compile a dll file using gcc or c++ or g++ it doesn't load the dll. So I tried using dependency walker to see the difference between two dll files(one made with gcc and another with visual studio). I saw the file structures were different. dll made with gcc had larger size than the one made with visual studio. Can anyone help me with this?
Edit:
So after doing some trial and error, I have found that only dll files that have C libraries work. I don't know why. I tried using iostream earlier, but it always failed to load and on the other hand when I used stdio.h it worked fine.
dllfile.cpp(with iostream):
#ifdef __cpluplus
extern "C" {
#endif
#include <iostream>
__declspec(dllexport) void print(const char *x){
std::cout<<x<<std::endl;
}
#ifdef __cplusplus
}
#endif
dllfile.cpp(with stdio):
#ifdef __cpluplus
extern "C" {
#endif
#include <stdio.h>
__declspec(dllexport) void print(const char *x){
printf("%s",x);
}
#ifdef __cplusplus
}
#endif