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std.os: munmap takes a const pointer

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Sobeston 2021-05-22 05:04:53 +01:00 committed by Andrew Kelley
parent d7bf4f8070
commit 742d588b3a
2 changed files with 2 additions and 2 deletions
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2
lib/std/c.zig
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@ -96,7 +96,7 @@ pub extern "c" fn pwritev(fd: c_int, iov: [*]const iovec_const, iovcnt: c_uint,
pub extern "c" fn write(fd: fd_t, buf: [*]const u8, nbyte: usize) isize;
pub extern "c" fn pwrite(fd: fd_t, buf: [*]const u8, nbyte: usize, offset: off_t) isize;
pub extern "c" fn mmap(addr: ?*align(page_size) c_void, len: usize, prot: c_uint, flags: c_uint, fd: fd_t, offset: off_t) *c_void;
pub extern "c" fn munmap(addr: *align(page_size) c_void, len: usize) c_int;
pub extern "c" fn munmap(addr: *align(page_size) const c_void, len: usize) c_int;
pub extern "c" fn mprotect(addr: *align(page_size) c_void, len: usize, prot: c_uint) c_int;
pub extern "c" fn link(oldpath: [*:0]const u8, newpath: [*:0]const u8, flags: c_int) c_int;
pub extern "c" fn linkat(oldfd: fd_t, oldpath: [*:0]const u8, newfd: fd_t, newpath: [*:0]const u8, flags: c_int) c_int;

2
lib/std/os.zig
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@ -3792,7 +3792,7 @@ pub fn mmap(
/// Zig's munmap function does not, for two reasons:
/// * It violates the Zig principle that resource deallocation must succeed.
/// * The Windows function, VirtualFree, has this restriction.
pub fn munmap(memory: []align(mem.page_size) u8) void {
pub fn munmap(memory: []align(mem.page_size) const u8) void {
switch (errno(system.munmap(memory.ptr, memory.len))) {
0 => return,
EINVAL => unreachable, // Invalid parameters.