Macro valgrind_printf_backtrace_unchecked 

macro_rules! valgrind_printf_backtrace_unchecked {
    ($($arg:tt)*) => { ... };
}

Available on crate feature alloc only.

Prints to the Valgrind log with a backtrace.

This macro requires the alloc feature. In allocation-free builds, use valgrind_print_backtrace instead.

See also crate::valgrind_printf_unchecked