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41dd2beaac
* unify the logic for exporting math functions from compiler-rt,
with the appropriate suffixes and prefixes.
- add all missing f128 and f80 exports. Functions with missing
implementations call other functions and have TODO comments.
- also add f16 functions
* move math functions from freestanding libc to compiler-rt (#7265)
* enable all the f128 and f80 code in the stage2 compiler and behavior
tests (#11161).
* update std lib to use builtins rather than `std.math`.
28 lines
843 B
Zig
28 lines
843 B
Zig
const math = @import("../math.zig");
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/// Returns the nan representation for type T.
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pub fn nan(comptime T: type) T {
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return switch (@typeInfo(T).Float.bits) {
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16 => math.nan_f16,
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32 => math.nan_f32,
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64 => math.nan_f64,
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80 => math.nan_f80,
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128 => math.nan_f128,
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else => @compileError("unreachable"),
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};
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}
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/// Returns the signalling nan representation for type T.
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pub fn snan(comptime T: type) T {
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// Note: A signalling nan is identical to a standard right now by may have a different bit
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// representation in the future when required.
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return switch (@typeInfo(T).Float.bits) {
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16 => math.nan_u16,
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32 => math.nan_u32,
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64 => math.nan_u64,
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80 => math.nan_u80,
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128 => math.nan_u128,
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else => @compileError("unreachable"),
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};
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}
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