3671582c15
The purpose of this is: * Only one way to do things * Changing a function with void return type to return a possible error becomes a 1 character change, subtly encouraging people to use errors. See #632 Here are some imperfect sed commands for performing this update: remove arrow: ``` sed -i 's/\(\bfn\b.*\)-> /\1/g' $(find . -name "*.zig") ``` add void: ``` sed -i 's/\(\bfn\b.*\))\s*{/\1) void {/g' $(find ../ -name "*.zig") ``` Some cleanup may be necessary, but this should do the bulk of the work.
26 lines
692 B
Zig
26 lines
692 B
Zig
const mem = @import("mem.zig");
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const builtin = @import("builtin");
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pub fn swapIfLe(comptime T: type, x: T) T {
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return swapIf(builtin.Endian.Little, T, x);
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}
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pub fn swapIfBe(comptime T: type, x: T) T {
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return swapIf(builtin.Endian.Big, T, x);
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}
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pub fn swapIf(endian: builtin.Endian, comptime T: type, x: T) T {
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return if (builtin.endian == endian) swap(T, x) else x;
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}
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pub fn swap(comptime T: type, x: T) T {
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var buf: [@sizeOf(T)]u8 = undefined;
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mem.writeInt(buf[0..], x, builtin.Endian.Little);
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return mem.readInt(buf, T, builtin.Endian.Big);
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}
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test "swap" {
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const debug = @import("debug/index.zig");
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debug.assert(swap(u32, 0xDEADBEEF) == 0xEFBEADDE);
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}
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