/* * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands. * See the copyright notice in the ACK home directory, in the file "Copyright". */ /* $Header: /cvsup/minix/src/lib/ansi/div.c,v 1.1.1.1 2005/04/21 14:56:04 beng Exp $ */ #include static int tmp = -1; div_t div(register int numer, register int denom) { div_t r; /* The assignment of tmp should not be optimized !! */ if (tmp == -1) { tmp = (tmp / 2 == 0); } if (numer == 0) { r.quot = numer / denom; /* might trap if denom == 0 */ r.rem = numer % denom; } else if ( !tmp && ((numer < 0) != (denom < 0))) { r.quot = (numer / denom) + 1; r.rem = numer - (numer / denom + 1) * denom; } else { r.quot = numer / denom; r.rem = numer % denom; } return r; }