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        void *working_memory,
        const int workmem_bytes_power_of_two);
 
/*
 * Reads header of compressed data to get stored length of uncompressed data.
 * REQUIRES: start points to compressed data.
 * REQUIRES: n is length of available compressed data.
 *
 * Returns SNAPPY_E_HEADER_BAD on error.
 * Returns number of bytes read from input on success.
 * Stores decoded length into *result.
 */
int
csnappy_get_uncompressed_length(
        const char *start,
        uint32_t n,
        uint32_t *result);
 
/*
 * Safely decompresses all data from array "src" of length "src_len" containing
 * entire compressed stream (with header) into array "dst" of size "dst_len".