Function printDurationUnsigned [src]
Prototype
pub fn printDurationUnsigned(w: *Writer, ns: u64) Error!void Parameters
w: *Writerns: u64 Possible Errors
See the Writer implementation for detailed diagnostics.
Source
pub fn printDurationUnsigned(w: *Writer, ns: u64) Error!void {
var ns_remaining = ns;
inline for (.{
.{ .ns = 365 * std.time.ns_per_day, .sep = 'y' },
.{ .ns = std.time.ns_per_week, .sep = 'w' },
.{ .ns = std.time.ns_per_day, .sep = 'd' },
.{ .ns = std.time.ns_per_hour, .sep = 'h' },
.{ .ns = std.time.ns_per_min, .sep = 'm' },
}) |unit| {
if (ns_remaining >= unit.ns) {
const units = ns_remaining / unit.ns;
try w.printInt(units, 10, .lower, .{});
try w.writeByte(unit.sep);
ns_remaining -= units * unit.ns;
if (ns_remaining == 0) return;
}
}
inline for (.{
.{ .ns = std.time.ns_per_s, .sep = "s" },
.{ .ns = std.time.ns_per_ms, .sep = "ms" },
.{ .ns = std.time.ns_per_us, .sep = "us" },
}) |unit| {
const kunits = ns_remaining * 1000 / unit.ns;
if (kunits >= 1000) {
try w.printInt(kunits / 1000, 10, .lower, .{});
const frac = kunits % 1000;
if (frac > 0) {
// Write up to 3 decimal places
var decimal_buf = [_]u8{ '.', 0, 0, 0 };
var inner: Writer = .fixed(decimal_buf[1..]);
inner.printInt(frac, 10, .lower, .{ .fill = '0', .width = 3 }) catch unreachable;
var end: usize = 4;
while (end > 1) : (end -= 1) {
if (decimal_buf[end - 1] != '0') break;
}
try w.writeAll(decimal_buf[0..end]);
}
return w.writeAll(unit.sep);
}
}
try w.printInt(ns_remaining, 10, .lower, .{});
try w.writeAll("ns");
}