File: x86stdcall2.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (27 lines) | stat: -rw-r--r-- 723 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
//@ run-pass
//@ only-windows

#![allow(non_camel_case_types)]
pub type HANDLE = usize;
pub type DWORD = u32;
pub type SIZE_T = u32;
pub type LPVOID = usize;
pub type BOOL = u8;

mod kernel32 {
    use super::{BOOL, DWORD, HANDLE, LPVOID, SIZE_T};

    extern "system" {
        pub fn GetProcessHeap() -> HANDLE;
        pub fn HeapAlloc(hHeap: HANDLE, dwFlags: DWORD, dwBytes: SIZE_T) -> LPVOID;
        pub fn HeapFree(hHeap: HANDLE, dwFlags: DWORD, lpMem: LPVOID) -> BOOL;
    }
}

pub fn main() {
    let heap = unsafe { kernel32::GetProcessHeap() };
    let mem = unsafe { kernel32::HeapAlloc(heap, 0, 100) };
    assert!(mem != 0);
    let res = unsafe { kernel32::HeapFree(heap, 0, mem) };
    assert!(res != 0);
}