Function alloc 

pub fn alloc(size: usize) -> Result<*mut u8, AllocationError>

A reasonably safe implementation of alloc.

• Memory allocated by this function must be freed by this crate’s free.
• Caller guarantees free is called before the returned pointer goes out of scope.

Errors

• Err(ArithmeticError) on integer overflow.
• Err(LayoutError) if the computed layout is invalid.
• Err(OutOfMemory) if alloc() returns a nullptr.

Safety

This function is safe to call, as it produces a valid pointer. The data buffer being pointed to is, however, not initialized.