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std/fmt: add bufPrintZ()

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Isaac Freund 2020-10-15 12:11:03 +02:00
parent b259696cfb
commit d52035f401
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1 changed files with 5 additions and 0 deletions
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5
lib/std/fmt.zig
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@ -1131,6 +1131,11 @@ pub fn bufPrint(buf: []u8, comptime fmt: []const u8, args: anytype) BufPrintErro
return fbs.getWritten();
}
pub fn bufPrintZ(buf: []u8, comptime fmt: []const u8, args: anytype) BufPrintError![:0]u8 {
const result = try bufPrint(buf, fmt ++ "\x00", args);
return result[0 .. result.len - 1 :0];
}
// Count the characters needed for format. Useful for preallocating memory
pub fn count(comptime fmt: []const u8, args: anytype) u64 {
var counting_writer = std.io.countingWriter(std.io.null_writer);