if (offset < KEYLENGTH) 
if (offset < KEYLENGTH) 
static inline t_key tkey_extract_bits(t_key a, int offset, int bits){        if (offset < KEYLENGTH)		return ((t_key)(a << offset)) >> (KEYLENGTH - bits);        else		return 0;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/91b9a277fc4d207249e459a455abf804ebb5499d/fib_trie.c/buggy/net/ipv4/fib_trie.c