Function miniz_oxide_c_api::mz_adler32

#[no_mangle]
pub unsafe extern "C" fn mz_adler32(
    adler: c_ulong, 
    ptr: *const u8, 
    buf_len: usize
) -> c_ulong

Calculate adler32 checksum of the provided buffer with the initial adler32 checksum of adler. If c_ulong is wider than 32 bits, only the lower 32 bits will be used.

Returns MZ_ADLER32_INIT if ptr is ptr::null.