Zig 0.17.0-dev (Split by item)

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sliceToInt

static.sliceToInt

fn sliceToInt(comptime T: type, slice: []const u8) !T

File

lib/std/json/static.zig:777

Code

fn sliceToInt(comptime T: type, slice: []const u8) !T {
    if (isNumberFormattedLikeAnInteger(slice))
        return std.fmt.parseInt(T, slice, 10);
    // Try to coerce a float to an integer.
    const float = try std.fmt.parseFloat(f128, slice);
    if (@round(float) != float) return error.InvalidNumber;
    if (float > @as(f128, @floatFromInt(std.math.maxInt(T))) or float < @as(f128, @floatFromInt(std.math.minInt(T)))) return error.Overflow;
    return @as(T, @intCast(@as(i128, @intFromFloat(float))));
}