Function miniz_oxide_c_api::mz_crc32

#[no_mangle]
pub unsafe extern "C" fn mz_crc32(
    crc: c_ulong, 
    ptr: *const u8, 
    buf_len: size_t
) -> c_ulong

Calculate crc-32 of the provided buffer with the initial CRC32 checksum of crc. If c_ulong is wider than 32 bits, only the lower 32 bits will be used.

Returns MZ_CRC32_INIT if ptr is ptr::null.