X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=mpfr%2Ftests%2Ftadd.c;fp=mpfr%2Ftests%2Ftadd.c;h=03f9dcb8d78d11c1d3c38ef766ffd76ca497079a;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/mpfr/tests/tadd.c b/mpfr/tests/tadd.c new file mode 100644 index 00000000..03f9dcb8 --- /dev/null +++ b/mpfr/tests/tadd.c @@ -0,0 +1,1092 @@ +/* Test file for mpfr_add and mpfr_sub. + +Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. +Contributed by the Arenaire and Cacao projects, INRIA. + +This file is part of the GNU MPFR Library. + +The GNU MPFR Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or (at your +option) any later version. + +The GNU MPFR 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 Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MPFR Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +MA 02110-1301, USA. */ + +#define NUM 30000 + +#include +#include +#include + +#include "mpfr-test.h" + +/* If the precisions are the same, we want to test both mpfr_add1sp + and mpfr_add1. */ + +static int usesp; + +static int +test_add (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mp_rnd_t rnd_mode) +{ + int res; +#ifdef CHECK_EXTERNAL + int ok = rnd_mode == GMP_RNDN && mpfr_number_p (b) && mpfr_number_p (c); + if (ok) + { + mpfr_print_raw (b); + printf (" "); + mpfr_print_raw (c); + } +#endif + if (usesp || MPFR_ARE_SINGULAR(b,c) || MPFR_SIGN(b) != MPFR_SIGN(c)) + res = mpfr_add (a, b, c, rnd_mode); + else + { + MPFR_CLEAR_FLAGS(a); /* clear flags */ + if (MPFR_GET_EXP(b) < MPFR_GET_EXP(c)) + res = mpfr_add1(a, c, b, rnd_mode); + else + res = mpfr_add1(a, b, c, rnd_mode); + } +#ifdef CHECK_EXTERNAL + if (ok) + { + printf (" "); + mpfr_print_raw (a); + printf ("\n"); + } +#endif + return res; +} + +/* Parameter "z1" of check() used to be last in the argument list, but that + tickled a bug in 32-bit sparc gcc 2.95.2. A "double" in that position is + passed on the stack at an address which is 4mod8, but the generated code + didn't take into account that alignment, resulting in bus errors. The + easiest workaround is to move it to the start of the arg list (where it's + passed in registers), this macro does that. FIXME: Change the actual + calls to check(), rather than using a macro. */ + +#define check(x,y,rnd_mode,px,py,pz,z1) pcheck(x,y,z1,rnd_mode,px,py,pz) + +/* checks that x+y gives the right result with 53 bits of precision */ +static void +pcheck (const char *xs, const char *ys, const char *zs, mp_rnd_t rnd_mode, + unsigned int px, unsigned int py, unsigned int pz) +{ + mpfr_t xx,yy,zz; + + mpfr_init2(xx, px); + mpfr_init2(yy, py); + mpfr_init2(zz, pz); + + mpfr_set_str1 (xx, xs); + mpfr_set_str1 (yy, ys); + test_add (zz, xx, yy, rnd_mode); + if (mpfr_cmp_str1 (zz, zs) ) + { + printf ("expected sum is %s, got ", zs); + mpfr_out_str(stdout, 10, 0, zz, GMP_RNDN); + printf ("mpfr_add failed for x=%s y=%s with rnd_mode=%s\n", + xs, ys, mpfr_print_rnd_mode (rnd_mode)); + exit (1); + } + mpfr_clears (xx, yy, zz, (mpfr_ptr) 0); +} + +static void +check2b (const char *xs, int px, + const char *ys, int py, + const char *rs, int pz, + mp_rnd_t rnd_mode) +{ + mpfr_t xx, yy, zz; + + mpfr_init2(xx,px); mpfr_init2(yy,py); mpfr_init2(zz,pz); + mpfr_set_str_binary (xx, xs); + mpfr_set_str_binary (yy, ys); + test_add (zz, xx, yy, rnd_mode); + if (mpfr_cmp_str (zz, rs, 2, GMP_RNDN)) + { + printf ("(2) x=%s,%d y=%s,%d pz=%d,rnd=%s\n", + xs, px, ys, py, pz, mpfr_print_rnd_mode (rnd_mode)); + printf ("got "); mpfr_print_binary(zz); puts (""); + mpfr_set_str(zz, rs, 2, GMP_RNDN); + printf ("instead of "); mpfr_print_binary(zz); puts (""); + exit (1); + } + mpfr_clear(xx); mpfr_clear(yy); mpfr_clear(zz); +} + +static void +check64 (void) +{ + mpfr_t x, t, u; + + mpfr_init (x); + mpfr_init (t); + mpfr_init (u); + + mpfr_set_prec (x, 29); + mpfr_set_str_binary (x, "1.1101001000101111011010010110e-3"); + mpfr_set_prec (t, 58); + mpfr_set_str_binary (t, "0.11100010011111001001100110010111110110011000000100101E-1"); + mpfr_set_prec (u, 29); + test_add (u, x, t, GMP_RNDD); + mpfr_set_str_binary (t, "1.0101011100001000011100111110e-1"); + if (mpfr_cmp (u, t)) + { + printf ("mpfr_add(u, x, t) failed for prec(x)=29, prec(t)=58\n"); + printf ("expected "); mpfr_out_str (stdout, 2, 29, t, GMP_RNDN); + puts (""); + printf ("got "); mpfr_out_str (stdout, 2, 29, u, GMP_RNDN); + puts (""); + exit(1); + } + + mpfr_set_prec (x, 4); + mpfr_set_str_binary (x, "-1.0E-2"); + mpfr_set_prec (t, 2); + mpfr_set_str_binary (t, "-1.1e-2"); + mpfr_set_prec (u, 2); + test_add (u, x, t, GMP_RNDN); + if (MPFR_MANT(u)[0] << 2) + { + printf ("result not normalized for prec=2\n"); + mpfr_print_binary (u); puts (""); + exit (1); + } + mpfr_set_str_binary (t, "-1.0e-1"); + if (mpfr_cmp (u, t)) + { + printf ("mpfr_add(u, x, t) failed for prec(x)=4, prec(t)=2\n"); + printf ("expected -1.0e-1\n"); + printf ("got "); mpfr_out_str (stdout, 2, 4, u, GMP_RNDN); + puts (""); + exit (1); + } + + mpfr_set_prec (x, 8); + mpfr_set_str_binary (x, "-0.10011010"); /* -77/128 */ + mpfr_set_prec (t, 4); + mpfr_set_str_binary (t, "-1.110e-5"); /* -7/128 */ + mpfr_set_prec (u, 4); + test_add (u, x, t, GMP_RNDN); /* should give -5/8 */ + mpfr_set_str_binary (t, "-1.010e-1"); + if (mpfr_cmp (u, t)) { + printf ("mpfr_add(u, x, t) failed for prec(x)=8, prec(t)=4\n"); + printf ("expected -1.010e-1\n"); + printf ("got "); mpfr_out_str (stdout, 2, 4, u, GMP_RNDN); + puts (""); + exit (1); + } + + mpfr_set_prec (x, 112); mpfr_set_prec (t, 98); mpfr_set_prec (u, 54); + mpfr_set_str_binary (x, "-0.11111100100000000011000011100000101101010001000111E-401"); + mpfr_set_str_binary (t, "0.10110000100100000101101100011111111011101000111000101E-464"); + test_add (u, x, t, GMP_RNDN); + if (mpfr_cmp (u, x)) + { + printf ("mpfr_add(u, x, t) failed for prec(x)=112, prec(t)=98\n"); + exit (1); + } + + mpfr_set_prec (x, 92); mpfr_set_prec (t, 86); mpfr_set_prec (u, 53); + mpfr_set_str (x, "-5.03525136761487735093e-74", 10, GMP_RNDN); + mpfr_set_str (t, "8.51539046314262304109e-91", 10, GMP_RNDN); + test_add (u, x, t, GMP_RNDN); + if (mpfr_cmp_str1 (u, "-5.0352513676148773509283672e-74") ) + { + printf ("mpfr_add(u, x, t) failed for prec(x)=92, prec(t)=86\n"); + exit (1); + } + + mpfr_set_prec(x, 53); mpfr_set_prec(t, 76); mpfr_set_prec(u, 76); + mpfr_set_str_binary(x, "-0.10010010001001011011110000000000001010011011011110001E-32"); + mpfr_set_str_binary(t, "-0.1011000101110010000101111111011111010001110011110111100110101011110010011111"); + mpfr_sub(u, x, t, GMP_RNDU); + mpfr_set_str_binary(t, "0.1011000101110010000101111111011100111111101010011011110110101011101000000100"); + if (mpfr_cmp(u,t)) + { + printf ("expect "); mpfr_print_binary(t); puts (""); + printf ("mpfr_add failed for precisions 53-76\n"); + exit (1); + } + mpfr_set_prec(x, 53); mpfr_set_prec(t, 108); mpfr_set_prec(u, 108); + mpfr_set_str_binary(x, "-0.10010010001001011011110000000000001010011011011110001E-32"); + mpfr_set_str_binary(t, "-0.101100010111001000010111111101111101000111001111011110011010101111001001111000111011001110011000000000111111"); + mpfr_sub(u, x, t, GMP_RNDU); + mpfr_set_str_binary(t, "0.101100010111001000010111111101110011111110101001101111011010101110100000001011000010101110011000000000111111"); + if (mpfr_cmp(u,t)) + { + printf ("expect "); mpfr_print_binary(t); puts (""); + printf ("mpfr_add failed for precisions 53-108\n"); + exit (1); + } + mpfr_set_prec(x, 97); mpfr_set_prec(t, 97); mpfr_set_prec(u, 97); + mpfr_set_str_binary(x, "0.1111101100001000000001011000110111101000001011111000100001000101010100011111110010000000000000000E-39"); + mpfr_set_ui(t, 1, GMP_RNDN); + test_add (u, x, t, GMP_RNDN); + mpfr_set_str_binary(x, "0.1000000000000000000000000000000000000000111110110000100000000101100011011110100000101111100010001E1"); + if (mpfr_cmp(u,x)) + { + printf ("mpfr_add failed for precision 97\n"); + exit (1); + } + mpfr_set_prec(x, 128); mpfr_set_prec(t, 128); mpfr_set_prec(u, 128); + mpfr_set_str_binary(x, "0.10101011111001001010111011001000101100111101000000111111111011010100001100011101010001010111111101111010100110111111100101100010E-4"); + mpfr_set(t, x, GMP_RNDN); + mpfr_sub(u, x, t, GMP_RNDN); + mpfr_set_prec(x, 96); mpfr_set_prec(t, 96); mpfr_set_prec(u, 96); + mpfr_set_str_binary(x, "0.111000000001110100111100110101101001001010010011010011100111100011010100011001010011011011000010E-4"); + mpfr_set(t, x, GMP_RNDN); + mpfr_sub(u, x, t, GMP_RNDN); + mpfr_set_prec(x, 85); mpfr_set_prec(t, 85); mpfr_set_prec(u, 85); + mpfr_set_str_binary(x, "0.1111101110100110110110100010101011101001100010100011110110110010010011101100101111100E-4"); + mpfr_set_str_binary(t, "0.1111101110100110110110100010101001001000011000111000011101100101110100001110101010110E-4"); + mpfr_sub(u, x, t, GMP_RNDU); + mpfr_sub(x, x, t, GMP_RNDU); + if (mpfr_cmp(x, u) != 0) + { + printf ("Error in mpfr_sub: u=x-t and x=x-t give different results\n"); + exit (1); + } + if ((MPFR_MANT(u)[(MPFR_PREC(u)-1)/mp_bits_per_limb] & + ((mp_limb_t)1<<(mp_bits_per_limb-1)))==0) + { + printf ("Error in mpfr_sub: result is not msb-normalized (1)\n"); + exit (1); + } + mpfr_set_prec(x, 65); mpfr_set_prec(t, 65); mpfr_set_prec(u, 65); + mpfr_set_str_binary(x, "0.10011010101000110101010000000011001001001110001011101011111011101E623"); + mpfr_set_str_binary(t, "0.10011010101000110101010000000011001001001110001011101011111011100E623"); + mpfr_sub(u, x, t, GMP_RNDU); + if (mpfr_cmp_ui_2exp(u, 1, 558)) + { /* 2^558 */ + printf ("Error (1) in mpfr_sub\n"); + exit (1); + } + + mpfr_set_prec(x, 64); mpfr_set_prec(t, 64); mpfr_set_prec(u, 64); + mpfr_set_str_binary(x, "0.1000011110101111011110111111000011101011101111101101101100000100E-220"); + mpfr_set_str_binary(t, "0.1000011110101111011110111111000011101011101111101101010011111101E-220"); + test_add (u, x, t, GMP_RNDU); + if ((MPFR_MANT(u)[0] & 1) != 1) + { + printf ("error in mpfr_add with rnd_mode=GMP_RNDU\n"); + printf ("b= "); mpfr_print_binary(x); puts (""); + printf ("c= "); mpfr_print_binary(t); puts (""); + printf ("b+c="); mpfr_print_binary(u); puts (""); + exit (1); + } + + /* bug found by Norbert Mueller, 14 Sep 2000 */ + mpfr_set_prec(x, 56); mpfr_set_prec(t, 83); mpfr_set_prec(u, 10); + mpfr_set_str_binary(x, "0.10001001011011001111101100110100000101111010010111010111E-7"); + mpfr_set_str_binary(t, "0.10001001011011001111101100110100000101111010010111010111000000000111110110110000100E-7"); + mpfr_sub(u, x, t, GMP_RNDU); + + /* array bound write found by Norbert Mueller, 26 Sep 2000 */ + mpfr_set_prec(x, 109); mpfr_set_prec(t, 153); mpfr_set_prec(u, 95); + mpfr_set_str_binary(x,"0.1001010000101011101100111000110001111111111111111111111111111111111111111111111111111111111111100000000000000E33"); + mpfr_set_str_binary(t,"-0.100101000010101110110011100011000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011100101101000000100100001100110111E33"); + test_add (u, x, t, GMP_RNDN); + + /* array bound writes found by Norbert Mueller, 27 Sep 2000 */ + mpfr_set_prec(x, 106); mpfr_set_prec(t, 53); mpfr_set_prec(u, 23); + mpfr_set_str_binary(x, "-0.1000011110101111111001010001000100001011000000000000000000000000000000000000000000000000000000000000000000E-59"); + mpfr_set_str_binary(t, "-0.10000111101011111110010100010001101100011100110100000E-59"); + mpfr_sub(u, x, t, GMP_RNDN); + mpfr_set_prec(x, 177); mpfr_set_prec(t, 217); mpfr_set_prec(u, 160); + mpfr_set_str_binary(x, "-0.111010001011010000111001001010010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000E35"); + mpfr_set_str_binary(t, "0.1110100010110100001110010010100100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000111011010011100001111001E35"); + test_add (u, x, t, GMP_RNDN); + mpfr_set_prec(x, 214); mpfr_set_prec(t, 278); mpfr_set_prec(u, 207); + mpfr_set_str_binary(x, "0.1000100110100110101101101101000000010000100111000001001110001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000E66"); + mpfr_set_str_binary(t, "-0.10001001101001101011011011010000000100001001110000010011100010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111011111001001100011E66"); + test_add (u, x, t, GMP_RNDN); + mpfr_set_prec(x, 32); mpfr_set_prec(t, 247); mpfr_set_prec(u, 223); + mpfr_set_str_binary(x, "0.10000000000000000000000000000000E1"); + mpfr_set_str_binary(t, "0.1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000110001110100000100011110000101110110011101110100110110111111011010111100100000000000000000000000000E0"); + mpfr_sub(u, x, t, GMP_RNDN); + if ((MPFR_MANT(u)[(MPFR_PREC(u)-1)/mp_bits_per_limb] & + ((mp_limb_t)1<<(mp_bits_per_limb-1)))==0) + { + printf ("Error in mpfr_sub: result is not msb-normalized (2)\n"); + exit (1); + } + + /* bug found by Nathalie Revol, 21 March 2001 */ + mpfr_set_prec (x, 65); + mpfr_set_prec (t, 65); + mpfr_set_prec (u, 65); + mpfr_set_str_binary (x, "0.11100100101101001100111011111111110001101001000011101001001010010E-35"); + mpfr_set_str_binary (t, "0.10000000000000000000000000000000000001110010010110100110011110000E1"); + mpfr_sub (u, t, x, GMP_RNDU); + if ((MPFR_MANT(u)[(MPFR_PREC(u)-1)/mp_bits_per_limb] & + ((mp_limb_t)1<<(mp_bits_per_limb-1)))==0) + { + printf ("Error in mpfr_sub: result is not msb-normalized (3)\n"); + exit (1); + } + + /* bug found by Fabrice Rouillier, 27 Mar 2001 */ + mpfr_set_prec (x, 107); + mpfr_set_prec (t, 107); + mpfr_set_prec (u, 107); + mpfr_set_str_binary (x, "0.10111001001111010010001000000010111111011011011101000001001000101000000000000000000000000000000000000000000E315"); + mpfr_set_str_binary (t, "0.10000000000000000000000000000000000101110100100101110110000001100101011111001000011101111100100100111011000E350"); + mpfr_sub (u, x, t, GMP_RNDU); + if ((MPFR_MANT(u)[(MPFR_PREC(u)-1)/mp_bits_per_limb] & + ((mp_limb_t)1<<(mp_bits_per_limb-1)))==0) + { + printf ("Error in mpfr_sub: result is not msb-normalized (4)\n"); + exit (1); + } + + /* checks that NaN flag is correctly reset */ + mpfr_set_ui (t, 1, GMP_RNDN); + mpfr_set_ui (u, 1, GMP_RNDN); + mpfr_set_nan (x); + test_add (x, t, u, GMP_RNDN); + if (mpfr_cmp_ui (x, 2)) + { + printf ("Error in mpfr_add: 1+1 gives "); + mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); + exit (1); + } + + mpfr_clear(x); mpfr_clear(t); mpfr_clear(u); +} + +/* check case when c does not overlap with a, but both b and c count + for rounding */ +static void +check_case_1b (void) +{ + mpfr_t a, b, c; + unsigned int prec_a, prec_b, prec_c, dif; + + mpfr_init (a); + mpfr_init (b); + mpfr_init (c); + + { + prec_a = MPFR_PREC_MIN + (randlimb () % 63); + mpfr_set_prec (a, prec_a); + for (prec_b = prec_a + 2; prec_b <= 64; prec_b++) + { + dif = prec_b - prec_a; + mpfr_set_prec (b, prec_b); + /* b = 1 - 2^(-prec_a) + 2^(-prec_b) */ + mpfr_set_ui (b, 1, GMP_RNDN); + mpfr_div_2exp (b, b, dif, GMP_RNDN); + mpfr_sub_ui (b, b, 1, GMP_RNDN); + mpfr_div_2exp (b, b, prec_a, GMP_RNDN); + mpfr_add_ui (b, b, 1, GMP_RNDN); + for (prec_c = dif; prec_c <= 64; prec_c++) + { + /* c = 2^(-prec_a) - 2^(-prec_b) */ + mpfr_set_prec (c, prec_c); + mpfr_set_si (c, -1, GMP_RNDN); + mpfr_div_2exp (c, c, dif, GMP_RNDN); + mpfr_add_ui (c, c, 1, GMP_RNDN); + mpfr_div_2exp (c, c, prec_a, GMP_RNDN); + test_add (a, b, c, GMP_RNDN); + if (mpfr_cmp_ui (a, 1) != 0) + { + printf ("case (1b) failed for prec_a=%u, prec_b=%u," + " prec_c=%u\n", prec_a, prec_b, prec_c); + printf ("b="); mpfr_print_binary(b); puts (""); + printf ("c="); mpfr_print_binary(c); puts (""); + printf ("a="); mpfr_print_binary(a); puts (""); + exit (1); + } + } + } + } + + mpfr_clear (a); + mpfr_clear (b); + mpfr_clear (c); +} + +/* check case when c overlaps with a */ +static void +check_case_2 (void) +{ + mpfr_t a, b, c, d; + + mpfr_init2 (a, 300); + mpfr_init2 (b, 800); + mpfr_init2 (c, 500); + mpfr_init2 (d, 800); + + mpfr_set_str_binary(a, "1E110"); /* a = 2^110 */ + mpfr_set_str_binary(b, "1E900"); /* b = 2^900 */ + mpfr_set_str_binary(c, "1E500"); /* c = 2^500 */ + test_add (c, c, a, GMP_RNDZ); /* c = 2^500 + 2^110 */ + mpfr_sub (d, b, c, GMP_RNDZ); /* d = 2^900 - 2^500 - 2^110 */ + test_add (b, b, c, GMP_RNDZ); /* b = 2^900 + 2^500 + 2^110 */ + test_add (a, b, d, GMP_RNDZ); /* a = 2^901 */ + if (mpfr_cmp_ui_2exp (a, 1, 901)) + { + printf ("b + d fails for b=2^900+2^500+2^110, d=2^900-2^500-2^110\n"); + printf ("expected 1.0e901, got "); + mpfr_out_str (stdout, 2, 0, a, GMP_RNDN); + printf ("\n"); + exit (1); + } + + mpfr_clear (a); + mpfr_clear (b); + mpfr_clear (c); + mpfr_clear (d); +} + +/* checks when source and destination are equal */ +static void +check_same (void) +{ + mpfr_t x; + + mpfr_init(x); mpfr_set_ui(x, 1, GMP_RNDZ); + test_add (x, x, x, GMP_RNDZ); + if (mpfr_cmp_ui (x, 2)) + { + printf ("Error when all 3 operands are equal\n"); + exit (1); + } + mpfr_clear(x); +} + +#define check53(x, y, r, z) check(x, y, r, 53, 53, 53, z) + +#define MAX_PREC 256 + +static void +check_inexact (void) +{ + mpfr_t x, y, z, u; + mp_prec_t px, py, pu, pz; + int inexact, cmp; + mp_rnd_t rnd; + + mpfr_init (x); + mpfr_init (y); + mpfr_init (z); + mpfr_init (u); + + mpfr_set_prec (x, 2); + mpfr_set_str_binary (x, "0.1E-4"); + mpfr_set_prec (u, 33); + mpfr_set_str_binary (u, "0.101110100101101100000000111100000E-1"); + mpfr_set_prec (y, 31); + if ((inexact = test_add (y, x, u, GMP_RNDN))) + { + printf ("Wrong inexact flag (2): expected 0, got %d\n", inexact); + exit (1); + } + + mpfr_set_prec (x, 2); + mpfr_set_str_binary (x, "0.1E-4"); + mpfr_set_prec (u, 33); + mpfr_set_str_binary (u, "0.101110100101101100000000111100000E-1"); + mpfr_set_prec (y, 28); + if ((inexact = test_add (y, x, u, GMP_RNDN))) + { + printf ("Wrong inexact flag (1): expected 0, got %d\n", inexact); + exit (1); + } + + for (px=2; px= 0) ? MPFR_EXP(x) - MPFR_EXP(u) + : MPFR_EXP(u) - MPFR_EXP(x); + /* x + u is exactly representable with precision + abs(EXP(x)-EXP(u)) + max(prec(x), prec(u)) + 1 */ + pz = pz + MAX(MPFR_PREC(x), MPFR_PREC(u)) + 1; + mpfr_set_prec (z, pz); + rnd = RND_RAND (); + if (test_add (z, x, u, rnd)) + { + printf ("z <- x + u should be exact\n"); + printf ("x="); mpfr_print_binary (x); puts (""); + printf ("u="); mpfr_print_binary (u); puts (""); + printf ("z="); mpfr_print_binary (z); puts (""); + exit (1); + } + { + rnd = RND_RAND (); + inexact = test_add (y, x, u, rnd); + cmp = mpfr_cmp (y, z); + if (((inexact == 0) && (cmp != 0)) || + ((inexact > 0) && (cmp <= 0)) || + ((inexact < 0) && (cmp >= 0))) + { + printf ("Wrong inexact flag for rnd=%s\n", + mpfr_print_rnd_mode(rnd)); + printf ("expected %d, got %d\n", cmp, inexact); + printf ("x="); mpfr_print_binary (x); puts (""); + printf ("u="); mpfr_print_binary (u); puts (""); + printf ("y= "); mpfr_print_binary (y); puts (""); + printf ("x+u="); mpfr_print_binary (z); puts (""); + exit (1); + } + } + } + } + } + + mpfr_clear (x); + mpfr_clear (y); + mpfr_clear (z); + mpfr_clear (u); +} + +static void +check_nans (void) +{ + mpfr_t s, x, y; + + mpfr_init2 (x, 8L); + mpfr_init2 (y, 8L); + mpfr_init2 (s, 8L); + + /* +inf + -inf == nan */ + mpfr_set_inf (x, 1); + mpfr_set_inf (y, -1); + test_add (s, x, y, GMP_RNDN); + MPFR_ASSERTN (mpfr_nan_p (s)); + + /* +inf + 1 == +inf */ + mpfr_set_inf (x, 1); + mpfr_set_ui (y, 1L, GMP_RNDN); + test_add (s, x, y, GMP_RNDN); + MPFR_ASSERTN (mpfr_inf_p (s)); + MPFR_ASSERTN (mpfr_sgn (s) > 0); + + /* -inf + 1 == -inf */ + mpfr_set_inf (x, -1); + mpfr_set_ui (y, 1L, GMP_RNDN); + test_add (s, x, y, GMP_RNDN); + MPFR_ASSERTN (mpfr_inf_p (s)); + MPFR_ASSERTN (mpfr_sgn (s) < 0); + + /* 1 + +inf == +inf */ + mpfr_set_ui (x, 1L, GMP_RNDN); + mpfr_set_inf (y, 1); + test_add (s, x, y, GMP_RNDN); + MPFR_ASSERTN (mpfr_inf_p (s)); + MPFR_ASSERTN (mpfr_sgn (s) > 0); + + /* 1 + -inf == -inf */ + mpfr_set_ui (x, 1L, GMP_RNDN); + mpfr_set_inf (y, -1); + test_add (s, x, y, GMP_RNDN); + MPFR_ASSERTN (mpfr_inf_p (s)); + MPFR_ASSERTN (mpfr_sgn (s) < 0); + + mpfr_clear (x); + mpfr_clear (y); + mpfr_clear (s); +} + +static void +check_alloc (void) +{ + mpfr_t a; + + mpfr_init2 (a, 10000); + mpfr_set_prec (a, 53); + mpfr_set_ui (a, 15236, GMP_RNDN); + test_add (a, a, a, GMP_RNDN); + mpfr_mul (a, a, a, GMP_RNDN); + mpfr_div (a, a, a, GMP_RNDN); + mpfr_sub (a, a, a, GMP_RNDN); + mpfr_clear (a); +} + +static void +check_overflow (void) +{ + mpfr_t a, b, c; + mp_prec_t prec_a; + int r; + + mpfr_init2 (a, 256); + mpfr_init2 (b, 256); + mpfr_init2 (c, 256); + + mpfr_set_ui (b, 1, GMP_RNDN); + mpfr_setmax (b, mpfr_get_emax ()); + mpfr_set_ui (c, 1, GMP_RNDN); + mpfr_set_exp (c, mpfr_get_emax () - 192); + RND_LOOP(r) + for (prec_a = 128; prec_a < 512; prec_a += 64) + { + mpfr_set_prec (a, prec_a); + mpfr_clear_overflow (); + test_add (a, b, c, (mp_rnd_t) r); + if (!mpfr_overflow_p ()) + { + printf ("No overflow in check_overflow\n"); + exit (1); + } + } + + mpfr_set_exp (c, mpfr_get_emax () - 512); + mpfr_set_prec (a, 256); + mpfr_clear_overflow (); + test_add (a, b, c, GMP_RNDU); + if (!mpfr_overflow_p ()) + { + printf ("No overflow in check_overflow\n"); + exit (1); + } + + mpfr_clear (a); + mpfr_clear (b); + mpfr_clear (c); +} + +static void +check_1111 (void) +{ + mpfr_t one; + long n; + + mpfr_init2 (one, MPFR_PREC_MIN); + mpfr_set_ui (one, 1, GMP_RNDN); + for (n = 0; n < NUM; n++) + { + mp_prec_t prec_a, prec_b, prec_c; + mp_exp_t tb=0, tc, diff; + mpfr_t a, b, c, s; + int m = 512; + int sb, sc; + int inex_a, inex_s; + mp_rnd_t rnd_mode; + + prec_a = MPFR_PREC_MIN + (randlimb () % m); + prec_b = MPFR_PREC_MIN + (randlimb () % m); + prec_c = MPFR_PREC_MIN + (randlimb () % m); + mpfr_init2 (a, prec_a); + mpfr_init2 (b, prec_b); + mpfr_init2 (c, prec_c); + sb = randlimb () % 3; + if (sb != 0) + { + tb = 1 + (randlimb () % (prec_b - (sb != 2))); + mpfr_div_2ui (b, one, tb, GMP_RNDN); + if (sb == 2) + mpfr_neg (b, b, GMP_RNDN); + test_add (b, b, one, GMP_RNDN); + } + else + mpfr_set (b, one, GMP_RNDN); + tc = 1 + (randlimb () % (prec_c - 1)); + mpfr_div_2ui (c, one, tc, GMP_RNDN); + sc = randlimb () % 2; + if (sc) + mpfr_neg (c, c, GMP_RNDN); + test_add (c, c, one, GMP_RNDN); + diff = (randlimb () % (2*m)) - m; + mpfr_mul_2si (c, c, diff, GMP_RNDN); + rnd_mode = RND_RAND (); + inex_a = test_add (a, b, c, rnd_mode); + mpfr_init2 (s, MPFR_PREC_MIN + 2*m); + inex_s = test_add (s, b, c, GMP_RNDN); /* exact */ + if (inex_s) + { + printf ("check_1111: result should have been exact.\n"); + exit (1); + } + inex_s = mpfr_prec_round (s, prec_a, rnd_mode); + if ((inex_a < 0 && inex_s >= 0) || + (inex_a == 0 && inex_s != 0) || + (inex_a > 0 && inex_s <= 0) || + !mpfr_equal_p (a, s)) + { + printf ("check_1111: results are different.\n"); + printf ("prec_a = %d, prec_b = %d, prec_c = %d\n", + (int) prec_a, (int) prec_b, (int) prec_c); + printf ("tb = %d, tc = %d, diff = %d, rnd = %s\n", + (int) tb, (int) tc, (int) diff, + mpfr_print_rnd_mode (rnd_mode)); + printf ("sb = %d, sc = %d\n", sb, sc); + printf ("a = "); mpfr_print_binary (a); puts (""); + printf ("s = "); mpfr_print_binary (s); puts (""); + printf ("inex_a = %d, inex_s = %d\n", inex_a, inex_s); + exit (1); + } + mpfr_clear (a); + mpfr_clear (b); + mpfr_clear (c); + mpfr_clear (s); + } + mpfr_clear (one); +} + +static void +check_1minuseps (void) +{ + static mp_prec_t prec_a[] = { + MPFR_PREC_MIN, 30, 31, 32, 33, 62, 63, 64, 65, 126, 127, 128, 129 + }; + static int supp_b[] = { + 0, 1, 2, 3, 4, 29, 30, 31, 32, 33, 34, 35, 61, 62, 63, 64, 65, 66, 67 + }; + mpfr_t a, b, c; + unsigned int ia, ib, ic; + + mpfr_init2 (c, MPFR_PREC_MIN); + + for (ia = 0; ia < numberof (prec_a); ia++) + for (ib = 0; ib < numberof(supp_b); ib++) + { + mp_prec_t prec_b; + int rnd_mode; + + prec_b = prec_a[ia] + supp_b[ib]; + + mpfr_init2 (a, prec_a[ia]); + mpfr_init2 (b, prec_b); + + mpfr_set_ui (c, 1, GMP_RNDN); + mpfr_div_ui (b, c, prec_a[ia], GMP_RNDN); + mpfr_sub (b, c, b, GMP_RNDN); /* b = 1 - 2^(-prec_a) */ + + for (ic = 0; ic < numberof(supp_b); ic++) + for (rnd_mode = 0; rnd_mode < GMP_RND_MAX; rnd_mode++) + { + mpfr_t s; + int inex_a, inex_s; + + mpfr_set_ui (c, 1, GMP_RNDN); + mpfr_div_ui (c, c, prec_a[ia] + supp_b[ic], GMP_RNDN); + inex_a = test_add (a, b, c, (mp_rnd_t) rnd_mode); + mpfr_init2 (s, 256); + inex_s = test_add (s, b, c, GMP_RNDN); /* exact */ + if (inex_s) + { + printf ("check_1minuseps: result should have been exact " + "(ia = %u, ib = %u, ic = %u)\n", ia, ib, ic); + exit (1); + } + inex_s = mpfr_prec_round (s, prec_a[ia], (mp_rnd_t) rnd_mode); + if ((inex_a < 0 && inex_s >= 0) || + (inex_a == 0 && inex_s != 0) || + (inex_a > 0 && inex_s <= 0) || + !mpfr_equal_p (a, s)) + { + printf ("check_1minuseps: results are different.\n"); + printf ("ia = %u, ib = %u, ic = %u\n", ia, ib, ic); + exit (1); + } + mpfr_clear (s); + } + + mpfr_clear (a); + mpfr_clear (b); + } + + mpfr_clear (c); +} + +static void +tests (void) +{ + check_alloc (); + check_nans (); + check_inexact (); + check_case_1b (); + check_case_2 (); + check64(); + + check("293607738.0", "1.9967571564050541e-5", GMP_RNDU, 64, 53, 53, + "2.9360773800002003e8"); + check("880524.0", "-2.0769715792901673e-5", GMP_RNDN, 64, 53, 53, + "8.8052399997923023e5"); + check("1196426492.0", "-1.4218093058435347e-3", GMP_RNDN, 64, 53, 53, + "1.1964264919985781e9"); + check("982013018.0", "-8.941829477291838e-7", GMP_RNDN, 64, 53, 53, + "9.8201301799999905e8"); + check("1092583421.0", "1.0880649218158844e9", GMP_RNDN, 64, 53, 53, + "2.1806483428158846e9"); + check("1.8476886419022969e-6", "961494401.0", GMP_RNDN, 53, 64, 53, + "9.6149440100000179e8"); + check("-2.3222118418069868e5", "1229318102.0", GMP_RNDN, 53, 64, 53, + "1.2290858808158193e9"); + check("-3.0399171300395734e-6", "874924868.0", GMP_RNDN, 53, 64, 53, + "8.749248679999969e8"); + check("9.064246624706179e1", "663787413.0", GMP_RNDN, 53, 64, 53, + "6.6378750364246619e8"); + check("-1.0954322421551264e2", "281806592.0", GMP_RNDD, 53, 64, 53, + "2.8180648245677572e8"); + check("5.9836930386056659e-8", "1016217213.0", GMP_RNDN, 53, 64, 53, + "1.0162172130000001e9"); + check("-1.2772161928500301e-7", "1237734238.0", GMP_RNDN, 53, 64, 53, + "1.2377342379999998e9"); + check("-4.567291988483277e8", "1262857194.0", GMP_RNDN, 53, 64, 53, + "8.0612799515167236e8"); + check("4.7719471752925262e7", "196089880.0", GMP_RNDN, 53, 53, 53, + "2.4380935175292528e8"); + check("4.7719471752925262e7", "196089880.0", GMP_RNDN, 53, 64, 53, + "2.4380935175292528e8"); + check("-1.716113812768534e-140", "1271212614.0", GMP_RNDZ, 53, 64, 53, + "1.2712126139999998e9"); + check("-1.2927455200185474e-50", "1675676122.0", GMP_RNDD, 53, 64, 53, + "1.6756761219999998e9"); + + check53("1.22191250737771397120e+20", "948002822.0", GMP_RNDN, + "122191250738719408128.0"); + check53("9966027674114492.0", "1780341389094537.0", GMP_RNDN, + "11746369063209028.0"); + check53("2.99280481918991653800e+272", "5.34637717585790933424e+271", + GMP_RNDN, "3.5274425367757071711e272"); + check_same(); + check53("6.14384195492641560499e-02", "-6.14384195401037683237e-02", + GMP_RNDU, "9.1603877261370314499e-12"); + check53("1.16809465359248765399e+196", "7.92883212101990665259e+196", + GMP_RNDU, "9.0969267746123943065e196"); + check53("3.14553393112021279444e-67", "3.14553401015952024126e-67", GMP_RNDU, + "6.2910679412797336946e-67"); + + check53("5.43885304644369509058e+185","-1.87427265794105342763e-57",GMP_RNDN, + "5.4388530464436950905e185"); + check53("5.43885304644369509058e+185","-1.87427265794105342763e-57",GMP_RNDZ, + "5.4388530464436944867e185"); + check53("5.43885304644369509058e+185","-1.87427265794105342763e-57",GMP_RNDU, + "5.4388530464436950905e185"); + check53("5.43885304644369509058e+185","-1.87427265794105342763e-57",GMP_RNDD, + "5.4388530464436944867e185"); + + check2b("1.001010101110011000000010100101110010111001010000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e358",187, + "-1.11100111001101100010001111111110101101110001000000000000000000000000000000000000000000e160",87, + "1.001010101110011000000010100101110010111001010000000111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111e358",178, + GMP_RNDD); + check2b("-1.111100100011100111010101010101001010100100000111001000000000000000000e481",70, + "1.1111000110100011110101111110110010010000000110101000000000000000e481",65, + "-1.001010111111101011010000001100011101100101000000000000000000e472",61, + GMP_RNDD); + check2b("1.0100010111010000100101000000111110011100011001011010000000000000000000000000000000e516",83, + "-1.1001111000100001011100000001001100110011110010111111000000e541",59, + "-1.1001111000100001011011110111000001001011100000011110100000110001110011010011000000000000000000000000000000000000000000000000e541",125, + GMP_RNDZ); + check2b("-1.0010111100000100110001011011010000000011000111101000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e261",155, + "-1.00111110100011e239",15, + "-1.00101111000001001100101010101110001100110001111010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e261",159, + GMP_RNDD); + check2b("-1.110111000011111011000000001001111101101001010100111000000000000000000000000e880",76, + "-1.1010010e-634",8, + "-1.11011100001111101100000000100111110110100101010011100000000000000000000000e880",75, + GMP_RNDZ); + check2b("1.00100100110110101001010010101111000001011100100101010000000000000000000000000000e-530",81, + "-1.101101111100000111000011001010110011001011101001110100000e-908",58, + "1.00100100110110101001010010101111000001011100100101010e-530",54, + GMP_RNDN); + check2b("1.0101100010010111101000000001000010010010011000111011000000000000000000000000000000000000000000000000000000000000000000e374",119, + "1.11100101100101e358",15, + "1.01011000100110011000010110100100100100100110001110110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e374",150, + GMP_RNDZ); + check2b("-1.10011001000010100000010100100110110010011111101111000000000000000000000000000000000000000000000000000000000000000000e-172",117, + "1.111011100000101010110000100100110100100001001000011100000000e-173",61, + "-1.0100010000001001010110011011101001001011101011110001000000000000000e-173",68, + GMP_RNDZ); + check2b("-1.011110000111101011100001100110100011100101000011011000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e-189",175, + "1.1e631",2, + "1.011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111e631",115, + GMP_RNDZ); + check2b("-1.101011101001011101100011001000001100010100001101011000000000000000000000000000000000000000000e-449",94, + "-1.01111101010111000011000110011101000111001100110111100000000000000e-429",66, + "-1.01111101010111000100110010000110100100101111111111101100010100001101011000000000000000000000000000000000000000e-429",111, + GMP_RNDU); + check2b("-1.101011101001011101100011001000001100010100001101011000000000000000000000000000000000000000000e-449",94, + "-1.01111101010111000011000110011101000111001100110111100000000000000e-429",66, + "-1.01111101010111000100110010000110100100101111111111101100010100001101011000000000000000000000000000000000000000e-429",111, + GMP_RNDD); + check2b("-1.1001000011101000110000111110010100100101110101111100000000000000000000000000000000000000000000000000000000e-72",107, + "-1.001100011101100100010101101010101011010010111111010000000000000000000000000000e521",79, + "-1.00110001110110010001010110101010101101001011111101000000000000000000000000000000000000000000000001e521",99, + GMP_RNDD); + check2b("-1.01010001111000000101010100100100110101011011100001110000000000e498",63, + "1.010000011010101111000100111100011100010101011110010100000000000e243",64, + "-1.010100011110000001010101001001001101010110111000011100000000000e498",64, + GMP_RNDN); + check2b("1.00101100010101000011010000011000111111011110010111000000000000000000000000000000000000000000000000000000000e178",108, + "-1.10101101010101000110011011111001001101111111110000100000000e160",60, + "1.00101100010100111100100011000011111001000010011101110010000000001111100000000000000000000000000000000000e178",105, + GMP_RNDN); + check2b("1.00110011010100111110011010110100111101110101100100110000000000000000000000000000000000000000000000e559",99, + "-1.011010110100111011100110100110011100000000111010011000000000000000e559",67, + "-1.101111111101011111111111001001100100011100001001100000000000000000000000000000000000000000000e556",94, + GMP_RNDU); + check2b("-1.100000111100101001100111011100011011000001101001111100000000000000000000000000e843",79, + "-1.1101101010110000001001000100001100110011000110110111000000000000000000000000000000000000000000e414",95, + "-1.1000001111001010011001110111000110110000011010100000e843",53, + GMP_RNDD); + check2b("-1.110110010110100010100011000110111001010000010111110000000000e-415",61, + "-1.0000100101100001111100110011111111110100011101101011000000000000000000e751",71, + "-1.00001001011000011111001100111111111101000111011010110e751",54, + GMP_RNDN); + check2b("-1.1011011011110001001101010101001000010100010110111101000000000000000000000e258",74, + "-1.00011100010110110101001011000100100000100010101000010000000000000000000000000000000000000000000000e268",99, + "-1.0001110011001001000011110001000111010110101011110010011011110100000000000000000000000000000000000000e268",101, + GMP_RNDD); + check2b("-1.1011101010011101011000000100100110101101101110000001000000000e629",62, + "1.111111100000011100100011100000011101100110111110111000000000000000000000000000000000000000000e525",94, + "-1.101110101001110101100000010010011010110110111000000011111111111111111111111111111111111111111111111111101e629",106, + GMP_RNDD); + check2b("1.111001000010001100010000001100000110001011110111011000000000000000000000000000000000000e152",88, + "1.111110111001100100000100111111010111000100111111001000000000000000e152",67, + "1.1110111111011110000010101001011011101010000110110100e153",53, + GMP_RNDN); + check2b("1.000001100011110010110000110100001010101101111011110100e696",55, + "-1.1011001111011100100001011110100101010101110111010101000000000000000000000000000000000000000000000000000000000000e730",113, + "-1.1011001111011100100001011110100100010100010011100010e730",53, + GMP_RNDN); + check2b("-1.11010111100001001111000001110101010010001111111001100000000000000000000000000000000000000000000000000000000000e530",111, + "1.01110100010010000000010110111101011101000001111101100000000000000000000000000000000000000000000000e530",99, + "-1.1000110011110011101010101101111101010011011111000000000000000e528",62, + GMP_RNDD); + check2b("-1.0001100010010100111101101011101000100100010011100011000000000000000000000000000000000000000000000000000000000e733",110, + "-1.001000000111110010100101010100110111001111011011001000000000000000000000000000000000000000000000000000000000e710",109, + "-1.000110001001010011111000111110110001110110011000110110e733",55, + GMP_RNDN); + check2b("-1.1101011110000100111100000111010101001000111111100110000000000000000000000e530",74, + "1.01110100010010000000010110111101011101000001111101100000000000000000000000000000000000000000000000000000000000e530",111, + "-1.10001100111100111010101011011111010100110111110000000000000000000000000000e528",75, + GMP_RNDU); + check2b("1.00110011010100111110011010110100111101110101100100110000000000000000000000000000000000000000000000e559",99, + "-1.011010110100111011100110100110011100000000111010011000000000000000e559",67, + "-1.101111111101011111111111001001100100011100001001100000000000000000000000000000000000000000000e556",94, + GMP_RNDU); + check2b("-1.100101111110110000000110111111011010011101101111100100000000000000e-624",67, + "1.10111010101110100000010110101000000000010011100000100000000e-587",60, + "1.1011101010111010000001011010011111110100011110001011111111001000000100101100010010000011100000000000000000000e-587",110, + GMP_RNDU); + check2b("-1.10011001000010100000010100100110110010011111101111000000000000000000000000000000000000000000000000000000000000000000e-172",117, + "1.111011100000101010110000100100110100100001001000011100000000e-173",61, + "-1.0100010000001001010110011011101001001011101011110001000000000000000e-173",68, + GMP_RNDZ); + check2b("1.1000111000110010101001010011010011101100010110001001000000000000000000000000000000000000000000000000e167",101, + "1.0011110010000110000000101100100111000001110110110000000000000000000000000e167",74, + "1.01100101010111000101001111111111010101110001100111001000000000000000000000000000000000000000000000000000e168",105, + GMP_RNDZ); + check2b("1.100101111111110010100101110111100001110000100001010000000000000000000000000000000000000000000000e808",97, + "-1.1110011001100000100000111111110000110010100111001011000000000000000000000000000000e807",83, + "1.01001001100110001100011111000000000001011010010111010000000000000000000000000000000000000000000e807",96, + GMP_RNDN); + check2b("1e128",128, + "1e0",128, + "100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001e0",256, + GMP_RNDN); + + /* Checking double precision (53 bits) */ + check53("-8.22183238641455905806e-19", "7.42227178769761587878e-19",GMP_RNDD, + "-7.9956059871694317927e-20"); + check53("5.82106394662028628236e+234","-5.21514064202368477230e+89",GMP_RNDD, + "5.8210639466202855763e234"); + check53("5.72931679569871602371e+122","-5.72886070363264321230e+122", + GMP_RNDN, "4.5609206607281141508e118"); + check53("-5.09937369394650450820e+238", "2.70203299854862982387e+250", + GMP_RNDD, "2.7020329985435301323e250"); + check53("-2.96695924472363684394e+27", "1.22842938251111500000e+16",GMP_RNDD, + "-2.96695924471135255027e27"); + check53("1.74693641655743793422e-227", "-7.71776956366861843469e-229", + GMP_RNDN, "1.669758720920751867e-227"); + /* x = -7883040437021647.0; for (i=0; i<468; i++) x = x / 2.0;*/ + check53("-1.03432206392780011159e-125", "1.30127034799251347548e-133", + GMP_RNDN, + "-1.0343220509150965661100887242027378881805094180354e-125"); + check53("1.05824655795525779205e+71", "-1.06022698059744327881e+71",GMP_RNDZ, + "-1.9804226421854867632e68"); + check53("-5.84204911040921732219e+240", "7.26658169050749590763e+240", + GMP_RNDD, "1.4245325800982785854e240"); + check53("1.00944884131046636376e+221","2.33809162651471520268e+215",GMP_RNDN, + "1.0094511794020929787e221"); + /*x = 7045852550057985.0; for (i=0; i<986; i++) x = x / 2.0;*/ + check53("4.29232078932667367325e-278", + "1.0773525047389793833221116707010783793203080117586e-281" + , GMP_RNDU, "4.2933981418314132787e-278"); + check53("5.27584773801377058681e-80", "8.91207657803547196421e-91", GMP_RNDN, + "5.2758477381028917269e-80"); + check53("2.99280481918991653800e+272", "5.34637717585790933424e+271", + GMP_RNDN, "3.5274425367757071711e272"); + check53("4.67302514390488041733e-184", "2.18321376145645689945e-190", + GMP_RNDN, "4.6730273271186420541e-184"); + check53("5.57294120336300389254e+71", "2.60596167942024924040e+65", GMP_RNDZ, + "5.5729438093246831053e71"); + check53("6.6052588496951015469e24", "4938448004894539.0", GMP_RNDU, + "6.6052588546335505068e24"); + check53("1.23056185051606761523e-190", "1.64589756643433857138e-181", + GMP_RNDU, "1.6458975676649006598e-181"); + check53("2.93231171510175981584e-280", "3.26266919161341483877e-273", + GMP_RNDU, "3.2626694848445867288e-273"); + check53("5.76707395945001907217e-58", "4.74752971449827687074e-51", GMP_RNDD, + "4.747530291205672325e-51"); + check53("277363943109.0", "11.0", GMP_RNDN, "277363943120.0"); + check53("1.44791789689198883921e-140", "-1.90982880222349071284e-121", + GMP_RNDN, "-1.90982880222349071e-121"); + + + /* tests for particular cases (Vincent Lefevre, 22 Aug 2001) */ + check53("9007199254740992.0", "1.0", GMP_RNDN, "9007199254740992.0"); + check53("9007199254740994.0", "1.0", GMP_RNDN, "9007199254740996.0"); + check53("9007199254740992.0", "-1.0", GMP_RNDN, "9007199254740991.0"); + check53("9007199254740994.0", "-1.0", GMP_RNDN, "9007199254740992.0"); + check53("9007199254740996.0", "-1.0", GMP_RNDN, "9007199254740996.0"); + + check_overflow (); + check_1111 (); + check_1minuseps (); +} + +#define TEST_FUNCTION test_add +#define TWO_ARGS +#define RAND_FUNCTION(x) mpfr_random2(x, MPFR_LIMB_SIZE (x), randlimb () % 100) +#include "tgeneric.c" + +int +main (int argc, char *argv[]) +{ + tests_start_mpfr (); + + usesp = 0; + tests (); + +#ifndef CHECK_EXTERNAL /* no need to check twice */ + usesp = 1; + tests (); +#endif + test_generic (2, 1000, 100); + + tests_end_mpfr (); + return 0; +}