api/add_8cpp_source.html

/*
 * This file is part of the Fun programming language.
 * https://fun-lang.xyz/
 *
 * Copyright 2026 Johannes Findeisen <you@hanez.org>
 * Licensed under the terms of the Apache-2.0 license.
 * https://opensource.org/license/apache-2-0
 */
#include <cstdint>
extern "C" {
#include "vm.h" // C header; provides VM, vm_pop_i64, vm_push_i64
}
extern "C" int fun_op_cpp_add(VM *vm) {
 int64_t a = vm_pop_i64(vm);
 int64_t b = vm_pop_i64(vm);
 vm_push_i64(vm, a + b);
 return 0; // success
}
a
Value a
Definition add.c:37
fun_op_cpp_add
int fun_op_cpp_add(VM *vm)
Add two 64-bit integers from the VM stack and push the sum.
Definition add.cpp:47
b
uint32_t b
Definition band.c:32
VM
The Fun virtual machine state.
Definition vm.h:110
vm_push_i64
void vm_push_i64(VM *vm, int64_t v)
Push a 64-bit integer as a VM int Value (C ABI helper).
Definition vm.c:621
vm_pop_i64
int64_t vm_pop_i64(VM *vm)
Pop a numeric Value and convert it to a 64-bit integer (C ABI helper).
Definition vm.c:598
vm.h
Core virtual machine data structures and public VM API.