backtrace 0.3.49

A library to acquire a stack trace (backtrace) at runtime in a Rust program.
Documentation 
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#[inline(never)]
pub fn callback<F>(f: F)
where
    F: FnOnce((&'static str, u32)),
{
    f((file!(), line!()))
}

#[inline(always)]
pub fn callback_inlined<F>(f: F)
where
    F: FnOnce((&'static str, u32)),
{
    f((file!(), line!()))
}