mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2025-12-16 19:23:08 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #4892 from Sobeston/patch-4

Browse Source 
mem.zeroes - add sentinel terminated array support
This commit is contained in:
Vexu 2020-05-08 22:37:27 +03:00 committed by GitHub
commit 453df1cc1e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/std/mem.zig
View File

@ -382,6 +382,9 @@ pub fn zeroes(comptime T: type) T {
} }
}, },
.Array => |info| { .Array => |info| {
if (info.sentinel) |sentinel| {
return [_:sentinel]info.child{zeroes(info.child)} ** info.len;
}
return [_]info.child{zeroes(info.child)} ** info.len; return [_]info.child{zeroes(info.child)} ** info.len;
}, },
.Vector, .Vector,
@ -442,6 +445,7 @@ test "mem.zeroes" {
array: [2]u32, array: [2]u32,
optional_int: ?u8, optional_int: ?u8,
empty: void, empty: void,
sentinel: [3:0]u8,
}; };
const b = zeroes(ZigStruct); const b = zeroes(ZigStruct);
@ -466,6 +470,9 @@ test "mem.zeroes" {
testing.expectEqual(@as(u32, 0), e); testing.expectEqual(@as(u32, 0), e);
} }
testing.expectEqual(@as(?u8, null), b.optional_int); testing.expectEqual(@as(?u8, null), b.optional_int);
for (b.sentinel) |e| {
testing.expectEqual(@as(u8, 0), e);
}
} }
pub fn secureZero(comptime T: type, s: []T) void { pub fn secureZero(comptime T: type, s: []T) void {