macro_rules! strwriter_as_str {
($expr:expr) => { ... };
}๐Deprecated since 0.2.19:
Use StrWriter::as_str instead
Available on crate feature
fmt only.Expand description
Converts a &'static StrWriter to a &'static str, in a const/static initializer.
This is usable in const or static initializers,
but not inside of const fns.
Deprecated: This macro is deprecated because
the StrWriter::as_str method
allows converting a&'static StrWriter to a &'static str.
ยงExample
use const_format::StrWriter;
use const_format::{strwriter_as_str, unwrap, writec};
const CAP: usize = 128;
const __STR: &StrWriter = &{
let mut writer = StrWriter::new([0; CAP]);
// Writing the array with debug formatting, and the integers with hexadecimal formatting.
unwrap!(writec!(writer, "{:x}", [3u32, 5, 8, 13, 21, 34]));
writer
};
const STR: &str = strwriter_as_str!(__STR);
fn main() {
assert_eq!(STR, "[3, 5, 8, d, 15, 22]");
}