geraldstanje · April 6, 2024 17:23 · prokash-sinha · Jan 5, 2022 · prokash-sinha · Jan 5, 2022
diff --git a/README.md b/README.md
diff --git a/bidder_module.go b/bidder_module.go
 package main

 import "C"

 import (
 	"sort"
 )

 //export Add
 func Add(a, b int) int {
 	return a + b
 }

 //export Sub
 func Sub(a, b int) int {
 	return a - b
 }

 //export Print
 func Print(str string) {
 	fmt.Printf("Go prints: %s\n", str)
 } 

 func strFxn(input string) string {
    return "Hello " + input + " World"
 }

 //export StrFxn
 func StrFxn(cinput *C.char) *C.char {
    // C data needs to be manually managed in memory.
    // But we will do it from C++.
    input := C.GoString(cinput)
    return C.CString(strFxn(input))
 }

 //export Sort
 func Sort(vals []int) {
 	sort.Ints(vals)
 }

 func main() {
 	// We need the main function to make possible
 	// CGO compiler to compile the package as C shared library
 }
diff --git a/main.cpp b/main.cpp
 #include <iostream>
 #include <string>
 #include "bidder_module.h"

 int main() {
    int res = Add(1, 2);
    std::cout << res << std::endl;
    
    GoString str;
    str.p = "Hello World";
    str.n = strlen(str.p);
    Print(str);
    
    std::string s = "Bidder";
    char *cstr = new char[s.length()+1];
    std::strcpy (cstr, s.c_str());

    cstr = StrFxn(cstr);
    std::cout << cstr << std::endl;
    delete[] cstr;

    return 0;
 }
diff --git a/run.sh b/run.sh
 # if you are on osx:
 # this creates bidder_module.h and bidder_module.dylib file
 go build -o bidder_module.dylib -buildmode=c-shared bidder_module.go
 g++ main.cpp bidder_module.dylib -o main && ./main

 # if you are on linux:
 # this creates bidder_module.h and bidder_module.so file
 # go build -o bidder_module.so -buildmode=c-shared bidder_module.go
 # g++ main.cpp bidder_module.so -o main && ./main
	package main

	import "C"

	import (
	"sort"
	)

	//export Add
	func Add(a, b int) int {
	return a + b
	}

	//export Sub
	func Sub(a, b int) int {
	return a - b
	}

	//export Print
	func Print(str string) {
	fmt.Printf("Go prints: %s\n", str)
	}

	func strFxn(input string) string {
	return "Hello " + input + " World"
	}

	//export StrFxn
	func StrFxn(cinput C.char) C.char {
	// C data needs to be manually managed in memory.
	// But we will do it from C++.
	input := C.GoString(cinput)
	return C.CString(strFxn(input))
	}

	//export Sort
	func Sort(vals []int) {
	sort.Ints(vals)
	}

	func main() {
	// We need the main function to make possible
	// CGO compiler to compile the package as C shared library
	}
	#include <iostream>
	#include <string>
	#include "bidder_module.h"

	int main() {
	int res = Add(1, 2);
	std::cout << res << std::endl;

	GoString str;
	str.p = "Hello World";
	str.n = strlen(str.p);
	Print(str);

	std::string s = "Bidder";
	char *cstr = new char[s.length()+1];
	std::strcpy (cstr, s.c_str());

	cstr = StrFxn(cstr);
	std::cout << cstr << std::endl;
	delete[] cstr;

	return 0;
	}
	# if you are on osx:
	# this creates bidder_module.h and bidder_module.dylib file
	go build -o bidder_module.dylib -buildmode=c-shared bidder_module.go
	g++ main.cpp bidder_module.dylib -o main && ./main

	# if you are on linux:
	# this creates bidder_module.h and bidder_module.so file
	# go build -o bidder_module.so -buildmode=c-shared bidder_module.go
	# g++ main.cpp bidder_module.so -o main && ./main