Macro custom_print::define_printlike

macro_rules! define_printlike {
    (
        $( #[$meta:meta] )*
        $name:ident,
        $macro:path,
        expect,
        $( $args:tt )*
    ) => { ... };
    (
        $( #[$meta:meta] )*
        $name:ident,
        $macro:path,
        try,
        $( $args:tt )*
    ) => { ... };
}

Defines a print-like macro with a given name that uses specified write macro, error-handling policy and writer.

The writer itself is specified by the rest arguments with the define_writer macros.

Examples

let mut string = String::new();
custom_print::define_printlike!(cprintln, writeln, expect, fmt, |value: &str| string += value);
custom_print::define_printlike!(try_println, writeln, try, fmt, |value: &str| string += value);

assert_eq!(cprintln!("first"), ());
assert_eq!(string, "first\n");
assert_eq!(try_println!("second"), Ok(()));
assert_eq!(string, "first\nsecond\n");