Zig 0.17.0-dev (Split by item)

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parsePartialInfOrNan

parse.parsePartialInfOrNan

fn parsePartialInfOrNan(comptime T: type, s: []const u8, negative: bool, n: *usize) ?T

File

lib/std/fmt/parse_float/parse.zig:249

Code

fn parsePartialInfOrNan(comptime T: type, s: []const u8, negative: bool, n: *usize) ?T {
    // inf/infinity; infxxx should only consume inf.
    if (std.ascii.startsWithIgnoreCase(s, "inf")) {
        n.* = 3;
        if (std.ascii.startsWithIgnoreCase(s[3..], "inity")) {
            n.* = 8;
        }

        return if (!negative) std.math.inf(T) else -std.math.inf(T);
    }

    if (std.ascii.startsWithIgnoreCase(s, "nan")) {
        n.* = 3;
        return std.math.nan(T);
    }

    return null;
}