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Diffstat (limited to 'gnu/lib/libgmp/mpq_div.c')
-rw-r--r-- | gnu/lib/libgmp/mpq_div.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/gnu/lib/libgmp/mpq_div.c b/gnu/lib/libgmp/mpq_div.c deleted file mode 100644 index f08aa27..0000000 --- a/gnu/lib/libgmp/mpq_div.c +++ /dev/null @@ -1,92 +0,0 @@ -/* mpq_div -- divide two rational numbers. - -Copyright (C) 1991 Free Software Foundation, Inc. - -This file is part of the GNU MP Library. - -The GNU MP Library is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -The GNU MP Library is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with the GNU MP Library; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include "gmp.h" -#include "gmp-impl.h" - -void -#ifdef __STDC__ -mpq_div (MP_RAT *quot, const MP_RAT *dividend, const MP_RAT *divisor) -#else -mpq_div (quot, dividend, divisor) - MP_RAT *quot; - const MP_RAT *dividend; - const MP_RAT *divisor; -#endif -{ - MP_INT gcd1, gcd2; - MP_INT tmp1, tmp2; - MP_INT numtmp; - - mpz_init (&gcd1); - mpz_init (&gcd2); - mpz_init (&tmp1); - mpz_init (&tmp2); - mpz_init (&numtmp); - - /* QUOT might be identical to either operand, so don't store the - result there until we are finished with the input operands. We - dare to overwrite the numerator of QUOT when we are finished - with the numerators of DIVIDEND and DIVISOR. */ - - mpz_gcd (&gcd1, &(dividend->num), &(divisor->num)); - mpz_gcd (&gcd2, &(divisor->den), &(dividend->den)); - - if (gcd1.size > 1 || gcd1.d[0] != 1) - mpz_div (&tmp1, &(dividend->num), &gcd1); - else - mpz_set (&tmp1, &(dividend->num)); - - if (gcd2.size > 1 || gcd2.d[0] != 1) - mpz_div (&tmp2, &(divisor->den), &gcd2); - else - mpz_set (&tmp2, &(divisor->den)); - - mpz_mul (&numtmp, &tmp1, &tmp2); - - if (gcd1.size > 1 || gcd1.d[0] != 1) - mpz_div (&tmp1, &(divisor->num), &gcd1); - else - mpz_set (&tmp1, &(divisor->num)); - - if (gcd2.size > 1 || gcd2.d[0] != 1) - mpz_div (&tmp2, &(dividend->den), &gcd2); - else - mpz_set (&tmp2, &(dividend->den)); - - mpz_mul (&(quot->den), &tmp1, &tmp2); - - /* We needed to go via NUMTMP to take care of QUOT being the same - as either input operands. Now move NUMTMP to QUOT->NUM. */ - mpz_set (&(quot->num), &numtmp); - - /* Keep the denominator positive. */ - if (quot->den.size < 0) - { - quot->den.size = -quot->den.size; - quot->num.size = -quot->num.size; - } - - mpz_clear (&numtmp); - mpz_clear (&tmp2); - mpz_clear (&tmp1); - mpz_clear (&gcd2); - mpz_clear (&gcd1); -} |