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std: add test for mem.zeroes on sentinel terminated arrays

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Vexu 2020-05-08 19:02:15 +03:00
parent 92a423739d
commit 336ddb5b76
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1 changed files with 7 additions and 3 deletions
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10
lib/std/mem.zig
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@ -341,8 +341,8 @@ pub fn zeroes(comptime T: type) T {
}
},
.Array => |info| {
if (info.sentinel) |sentinel| {
return [_:info.sentinel]info.child{zeroes(info.child)} ** info.len;
if (info.sentinel) |sentinel| {
return [_:sentinel]info.child{zeroes(info.child)} ** info.len;
}
return [_]info.child{zeroes(info.child)} ** info.len;
},
@ -407,6 +407,7 @@ test "mem.zeroes" {
array: [2]u32,
optional_int: ?u8,
empty: void,
sentinel: [3:0]u8,
};
const b = zeroes(ZigStruct);
@ -431,6 +432,9 @@ test "mem.zeroes" {
testing.expectEqual(@as(u32, 0), e);
}
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 {
@ -504,7 +508,7 @@ pub const toSlice = @compileError("deprecated; use std.mem.spanZ");
/// the constness of the input type. `[*c]` pointers are assumed to be 0-terminated,
/// and assumed to not allow null.
pub fn Span(comptime T: type) type {
switch(@typeInfo(T)) {
switch (@typeInfo(T)) {
.Optional => |optional_info| {
return ?Span(optional_info.child);
},