Floats

Float literals have type which is guaranteed to have the same precision and operations of the largest other floating point type, which is f128.

Float literals implicitly cast to any floating point type, and to any type when there is no fractional component.

const std = @import("std");
const inf = std.math.inf(f32);
const negative_inf = -std.math.inf(f64);

Floating Point Operations

By default floating point operations use Strict mode, but you can switch to Optimized mode on a per-block basis:

foo.zig

$ zig build-obj foo.zig --release-fast

float_mode.zig

$ zig build-exe float_mode.zig --object foo.o
$ ./float_mode
strict = 9.765625e-04