Commit `ece8480fc2`

Eric Joldasov <bratishkaerik@landless-city.net>

2024-07-15 21:27:56

std.c.setlocale: fix return type to nullable pointer

According to https://en.cppreference.com/mwiki/index.php?title=c/locale/setlocale&oldid=171500 , `setlocale` "returns null value on failure": > Return value > pointer to a narrow null-terminated string identifying the C locale > after applying the changes, if any, or null pointer on failure. Example program: ```zig const std = @import("std"); pub fn main() void { const ptr = std.c.setlocale(.ALL, "non_existent"); std.debug.print("ptr = {d}\n", .{@intFromPtr(ptr)}); } ``` Output: ```console ptr = 0 ``` Signed-off-by: Eric Joldasov <bratishkaerik@landless-city.net>

master

1 parent 888708e

Changed files (1)

lib

std

c.zig

@@ -1914,7 +1914,7 @@ pub const LC = enum(c_int) {
     IDENTIFICATION = 12,
 };
 
-pub extern "c" fn setlocale(category: LC, locale: ?[*:0]const u8) [*:0]const u8;
+pub extern "c" fn setlocale(category: LC, locale: ?[*:0]const u8) ?[*:0]const u8;
 
 pub const getcontext = if (builtin.target.isAndroid())
     @compileError("android bionic libc does not implement getcontext")

Commit ece8480fc2

Commit `ece8480fc2`