Macro solana_program::msg

macro_rules! msg {
    ($msg : expr) => { ... };
    ($arg1 : expr, $arg2 : expr, $arg3 : expr, $arg4 : expr, $arg5 : expr) => { ... };
    ($($arg : tt) *) => { ... };
}

Print a message to the log

There are two fast forms:

1. Single string: msg!("hi")
2. 5 integers: msg!(1, 2, 3, 4, 5)

The third form is more generic and incurs a very large runtime overhead so it should be used with care: 3. Generalized format string: msg!("Hello {}: 1, 2, {}", "World", 3)