Function `BZ2_bzDecompressInit`

pub unsafe extern "C" fn BZ2_bzDecompressInit(strm: *mut bz_stream, verbosity: c_int, small: c_int) -> c_int

Prepares the stream for decompression.

Returns

BZ_PARAM_ERROR if any of
- strm.is_null()
- !(0..=1).contains(&small)
- !(0..=4).contains(&verbosity)
- no valid allocator could be configured
BZ_MEM_ERROR if insufficient memory is available
BZ_OK otherwise

Safety

The caller must guarantee that

Either
- strm is NULL
- strm satisfies the requirements of &mut *strm
The bzalloc, bzfree and opaque fields form a valid allocator.