Mercurial > hg > CbC > CbC_gcc
view gcc/config/udivmodsi4.c @ 42:9e4f9e20b8f1
add some examples.
author | kent@teto.cr.ie.u-ryukyu.ac.jp |
---|---|
date | Mon, 25 Jan 2010 17:13:59 +0900 |
parents | a06113de4d67 |
children | 77e2b8dfacca |
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unsigned long udivmodsi4(unsigned long num, unsigned long den, int modwanted) { unsigned long bit = 1; unsigned long res = 0; while (den < num && bit && !(den & (1L<<31))) { den <<=1; bit <<=1; } while (bit) { if (num >= den) { num -= den; res |= bit; } bit >>=1; den >>=1; } if (modwanted) return num; return res; }