mirror of
https://codeberg.org/ziglang/zig.git
synced 2025-12-06 13:54:21 +00:00
f26dda2117
Most of this migration was performed automatically with `zig fmt`. There were a few exceptions which I had to manually fix: * `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten * `@truncate`'s fixup is incorrect for vectors * Test cases are not formatted, and their error locations change
57 lines
1.9 KiB
Zig
57 lines
1.9 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const arch = builtin.cpu.arch;
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const common = @import("common.zig");
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pub const panic = common.panic;
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comptime {
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@export(__fabsh, .{ .name = "__fabsh", .linkage = common.linkage, .visibility = common.visibility });
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@export(fabsf, .{ .name = "fabsf", .linkage = common.linkage, .visibility = common.visibility });
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@export(fabs, .{ .name = "fabs", .linkage = common.linkage, .visibility = common.visibility });
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@export(__fabsx, .{ .name = "__fabsx", .linkage = common.linkage, .visibility = common.visibility });
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if (common.want_ppc_abi) {
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@export(fabsq, .{ .name = "fabsf128", .linkage = common.linkage, .visibility = common.visibility });
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}
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@export(fabsq, .{ .name = "fabsq", .linkage = common.linkage, .visibility = common.visibility });
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@export(fabsl, .{ .name = "fabsl", .linkage = common.linkage, .visibility = common.visibility });
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}
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pub fn __fabsh(a: f16) callconv(.C) f16 {
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return generic_fabs(a);
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}
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pub fn fabsf(a: f32) callconv(.C) f32 {
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return generic_fabs(a);
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}
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pub fn fabs(a: f64) callconv(.C) f64 {
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return generic_fabs(a);
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}
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pub fn __fabsx(a: f80) callconv(.C) f80 {
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return generic_fabs(a);
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}
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pub fn fabsq(a: f128) callconv(.C) f128 {
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return generic_fabs(a);
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}
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pub fn fabsl(x: c_longdouble) callconv(.C) c_longdouble {
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switch (@typeInfo(c_longdouble).Float.bits) {
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16 => return __fabsh(x),
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32 => return fabsf(x),
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64 => return fabs(x),
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80 => return __fabsx(x),
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128 => return fabsq(x),
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else => @compileError("unreachable"),
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}
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}
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inline fn generic_fabs(x: anytype) @TypeOf(x) {
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const T = @TypeOf(x);
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const TBits = std.meta.Int(.unsigned, @typeInfo(T).Float.bits);
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const float_bits = @as(TBits, @bitCast(x));
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const remove_sign = ~@as(TBits, 0) >> 1;
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return @as(T, @bitCast(float_bits & remove_sign));
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}
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