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std.Io.Reader.takeStruct: dont assert buffer capacity is sizeOf(T)

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Carmen 2026-01-24 13:00:38 +01:00 • committed by Andrew Kelley
parent 97986184ca
commit 5e9c484745
1 changed files with 2 additions and 3 deletions
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5
lib/std/Io/Reader.zig
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@ -1192,8 +1192,6 @@ pub fn peekStructPointer(r: *Reader, comptime T: type) Error!*align(1) T {
return @ptrCast(try r.peekArray(@sizeOf(T)));
}
/// Asserts the buffer was initialized with a capacity at least `@sizeOf(T)`.
///
/// This function is inline to avoid referencing `std.mem.byteSwapAllFields`
/// when `endian` is comptime-known and matches the host endianness.
///
@ -1205,7 +1203,8 @@ pub inline fn takeStruct(r: *Reader, comptime T: type, endian: std.builtin.Endia
.@"struct" => |info| switch (info.layout) {
.auto => @compileError("ill-defined memory layout"),
.@"extern" => {
var res = (try r.takeStructPointer(T)).*;
var res: T = undefined;
try r.readSliceAll(std.mem.asBytes(&res));
if (native_endian != endian) std.mem.byteSwapAllFields(T, &res);
return res;
},