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glfw: un-hardcode constant

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Make the constant extracted from GLFW source into `time.setTime`, into a better-documented set of comptime instructions
This commit is contained in:
InKryption 2021-11-27 06:03:15 +01:00 • committed by Stephen Gutekanst
parent 1d648c2256
commit 7b9b0469cb
1 changed files with 5 additions and 3 deletions
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8
glfw/src/time.zig
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@ -58,9 +58,11 @@ pub inline fn setTime(time: f64) void {
std.debug.assert(!std.math.isNan(time));
std.debug.assert(time >= 0);
// TODO: Look into why GLFW uses this hardcoded float literal as the maximum valid value for 'time'.
// Maybe propose upstream to name this constant.
std.debug.assert(time <= 18446744073.0);
// assert time is lteq to largest number of seconds representable by u64 with nanosecond precision
std.debug.assert(time <= max_time: {
const @"2^64" = std.math.maxInt(u64);
break :max_time @divTrunc(@"2^64", std.time.ns_per_s);
});
c.glfwSetTime(time);
getError() catch |err| return switch (err) {