/* tfprintf.c -- test file for mpfr_fprintf and mpfr_vfprintf Copyright 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc. Contributed by the AriC and Caramel 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 3 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.LESSER. If not, see http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifdef HAVE_STDARG #include #include #include #include #include #include "mpfr-intmax.h" #include "mpfr-test.h" #if MPFR_VERSION >= MPFR_VERSION_NUM(2,4,0) #define QUOTE(X) NAME(X) #define NAME(X) #X #define check_length(num_test, var, value, var_spec) \ if ((var) != (value)) \ { \ printf ("Error in test #%d: mpfr_vfprintf printed %"QUOTE(var_spec) \ " characters instead of %d\n", (num_test), (var), (value)); \ exit (1); \ } #define check_length_with_cmp(num_test, var, value, cmp, var_spec) \ if (cmp != 0) \ { \ mpfr_printf ("Error in test #%d, mpfr_vfprintf printed %" \ QUOTE(var_spec)" characters instead of %d\n", \ (num_test), (var), (value)); \ exit (1); \ } /* limit for random precision in random() */ const int prec_max_printf = 5000; static void check (FILE *fout, const char *fmt, mpfr_t x) { if (mpfr_fprintf (fout, fmt, x) == -1) { mpfr_printf ("Error in mpfr_fprintf(fout, \"%s\", %Re)\n", fmt, x); exit (1); } fputc ('\n', fout); } static void check_vfprintf (FILE *fout, const char *fmt, ...) { va_list ap; va_start (ap, fmt); if (mpfr_vfprintf (fout, fmt, ap) == -1) { mpfr_printf ("Error in mpfr_vfprintf(fout, \"%s\", ...)\n", fmt); va_end (ap); exit (1); } va_end (ap); fputc ('\n', fout); } static void check_special (FILE *fout) { mpfr_t x; mpfr_init (x); mpfr_set_inf (x, 1); check (fout, "%Ra", x); check (fout, "%Rb", x); check (fout, "%Re", x); check (fout, "%Rf", x); check (fout, "%Rg", x); check_vfprintf (fout, "%Ra", x); check_vfprintf (fout, "%Rb", x); check_vfprintf (fout, "%Re", x); check_vfprintf (fout, "%Rf", x); check_vfprintf (fout, "%Rg", x); mpfr_set_inf (x, -1); check (fout, "%Ra", x); check (fout, "%Rb", x); check (fout, "%Re", x); check (fout, "%Rf", x); check (fout, "%Rg", x); check_vfprintf (fout, "%Ra", x); check_vfprintf (fout, "%Rb", x); check_vfprintf (fout, "%Re", x); check_vfprintf (fout, "%Rf", x); check_vfprintf (fout, "%Rg", x); mpfr_set_nan (x); check (fout, "%Ra", x); check (fout, "%Rb", x); check (fout, "%Re", x); check (fout, "%Rf", x); check (fout, "%Rg", x); check_vfprintf (fout, "%Ra", x); check_vfprintf (fout, "%Rb", x); check_vfprintf (fout, "%Re", x); check_vfprintf (fout, "%Rf", x); check_vfprintf (fout, "%Rg", x); mpfr_clear (x); } static void check_mixed (FILE *fout) { int ch = 'a'; #ifndef NPRINTF_HH signed char sch = -1; unsigned char uch = 1; #endif short sh = -1; unsigned short ush = 1; int i = -1; int j = 1; unsigned int ui = 1; long lo = -1; unsigned long ulo = 1; float f = -1.25; double d = -1.25; #if !defined(NPRINTF_T) || !defined(NPRINTF_L) long double ld = -1.25; #endif #ifndef NPRINTF_T ptrdiff_t p = 1, saved_p; #endif size_t sz = 1; mpz_t mpz; mpq_t mpq; mpf_t mpf; mpfr_rnd_t rnd = MPFR_RNDN; mp_size_t limb_size = 3; mp_limb_t limb[3]; mpfr_t mpfr; mpfr_prec_t prec = 53; mpz_init (mpz); mpz_set_ui (mpz, ulo); mpq_init (mpq); mpq_set_si (mpq, lo, ulo); mpf_init (mpf); mpf_set_q (mpf, mpq); mpfr_init2 (mpfr, prec); mpfr_set_f (mpfr, mpf, MPFR_RNDN); limb[0] = limb[1] = limb[2] = ~ (mp_limb_t) 0; check_vfprintf (fout, "a. %Ra, b. %u, c. %lx%n", mpfr, ui, ulo, &j); check_length (1, j, 22, d); check_vfprintf (fout, "a. %c, b. %Rb, c. %u, d. %li%ln", i, mpfr, i, lo, &ulo); check_length (2, ulo, 36, lu); check_vfprintf (fout, "a. %hi, b. %*f, c. %Re%hn", ush, 3, f, mpfr, &ush); check_length (3, ush, 29, hu); check_vfprintf (fout, "a. %hi, b. %f, c. %#.2Rf%n", sh, d, mpfr, &i); check_length (4, i, 29, d); check_vfprintf (fout, "a. %R*A, b. %Fe, c. %i%zn", rnd, mpfr, mpf, sz, &sz); check_length (5, (unsigned long) sz, 34, lu); /* no format specifier "%zu" in C89 */ check_vfprintf (fout, "a. %Pu, b. %c, c. %Zi%Zn", prec, ch, mpz, &mpz); check_length_with_cmp (6, mpz, 17, mpz_cmp_ui (mpz, 17), Zi); check_vfprintf (fout, "%% a. %#.0RNg, b. %Qx%Rn, c. %p", mpfr, mpq, &mpfr, (void *) &i); check_length_with_cmp (7, mpfr, 15, mpfr_cmp_ui (mpfr, 15), Rg); #ifndef NPRINTF_T saved_p = p; check_vfprintf (fout, "%% a. %RNg, b. %Qx, c. %td%tn", mpfr, mpq, p, &p); if (p != 20) mpfr_fprintf (stderr, "Error in test 8, got '%% a. %RNg, b. %Qx, c. %td'\n", mpfr, mpq, saved_p); check_length (8, (long) p, 20, ld); /* no format specifier "%td" in C89 */ #endif #ifndef NPRINTF_L check_vfprintf (fout, "a. %RA, b. %Lf, c. %QX%zn", mpfr, ld, mpq, &sz); check_length (9, (unsigned long) sz, 30, lu); /* no format specifier "%zu" in C89 */ #endif #ifndef NPRINTF_HH check_vfprintf (fout, "a. %hhi, b. %RA, c. %hhu%hhn", sch, mpfr, uch, &uch); check_length (10, (unsigned int) uch, 22, u); /* no format specifier "%hhu" in C89 */ #endif #if (__GNU_MP_VERSION * 10 + __GNU_MP_VERSION_MINOR) >= 42 /* The 'M' specifier was added in gmp 4.2.0 */ check_vfprintf (fout, "a. %Mx b. %Re%Mn", limb[0], mpfr, &limb[0]); if (limb[0] != 14 + GMP_NUMB_BITS / 4 || limb[1] != ~ (mp_limb_t) 0 || limb[2] != ~ (mp_limb_t) 0) { printf ("Error in test #11: mpfr_vfprintf did not print %d characters" " as expected\n", 14 + (int) GMP_NUMB_BITS / 4); exit (1); } limb[0] = ~ (mp_limb_t) 0; /* we tell vfprintf that limb array is 2 cells wide and check it doesn't go through */ check_vfprintf (fout, "a. %Re .b %Nx%Nn", mpfr, limb, limb_size, limb, limb_size - 1); if (limb[0] != 14 + 3 * GMP_NUMB_BITS / 4 || limb[1] != (mp_limb_t) 0 || limb[2] != ~ (mp_limb_t) 0) { printf ("Error in test #12: mpfr_vfprintf did not print %d characters" " as expected\n", 14 + (int) GMP_NUMB_BITS / 4); exit (1); } #endif #if defined(HAVE_LONG_LONG) && !defined(NPRINTF_LL) { long long llo = -1; unsigned long long ullo = 1; check_vfprintf (fout, "a. %Re, b. %llx%Qn", mpfr, ullo, &mpq); check_length_with_cmp (21, mpq, 16, mpq_cmp_ui (mpq, 16, 1), Qu); check_vfprintf (fout, "a. %lli, b. %Rf%Fn", llo, mpfr, &mpf); check_length_with_cmp (22, mpf, 19, mpf_cmp_ui (mpf, 19), Fg); } #endif #if defined(_MPFR_H_HAVE_INTMAX_T) && !defined(NPRINTF_J) { intmax_t im = -1; uintmax_t uim = 1; check_vfprintf (fout, "a. %*RA, b. %ji%Qn", 10, mpfr, im, &mpq); check_length_with_cmp (31, mpq, 20, mpq_cmp_ui (mpq, 20, 1), Qu); check_vfprintf (fout, "a. %.*Re, b. %jx%Fn", 10, mpfr, uim, &mpf); check_length_with_cmp (32, mpf, 25, mpf_cmp_ui (mpf, 25), Fg); } #endif mpfr_clear (mpfr); mpf_clear (mpf); mpq_clear (mpq); mpz_clear (mpz); } static void check_random (FILE *fout, int nb_tests) { int i; mpfr_t x; mpfr_rnd_t rnd; char flag[] = { '-', '+', ' ', '#', '0', /* no ambiguity: first zeros are flag zero*/ '\'' }; char specifier[] = { 'a', 'b', 'e', 'f', 'g' }; mpfr_exp_t old_emin, old_emax; old_emin = mpfr_get_emin (); old_emax = mpfr_get_emax (); mpfr_init (x); for (i = 0; i < nb_tests; ++i) { int ret; int j, jmax; int spec, prec; #define FMT_SIZE 13 char fmt[FMT_SIZE]; /* at most something like "%-+ #0'.*R*f" */ char *ptr = fmt; tests_default_random (x, 256, MPFR_EMIN_MIN, MPFR_EMAX_MAX); rnd = RND_RAND (); spec = (int) (randlimb () % 5); jmax = (spec == 3 || spec == 4) ? 6 : 5; /* ' flag only with %f or %g */ /* advantage small precision */ prec = (int) (randlimb () % ((randlimb () % 2) ? 10 : prec_max_printf)); if (spec == 3 && (mpfr_get_exp (x) > prec_max_printf || mpfr_get_exp (x) < -prec_max_printf)) /* change style 'f' to style 'e' when number x is large */ --spec; *ptr++ = '%'; for (j = 0; j < jmax; j++) { if (randlimb () % 3 == 0) *ptr++ = flag[j]; } *ptr++ = '.'; *ptr++ = '*'; *ptr++ = 'R'; *ptr++ = '*'; *ptr++ = specifier[spec]; *ptr = '\0'; MPFR_ASSERTD (ptr - fmt < FMT_SIZE); mpfr_fprintf (fout, "mpfr_fprintf(fout, \"%s\", %d, %s, %Re)\n", fmt, prec, mpfr_print_rnd_mode (rnd), x); ret = mpfr_fprintf (fout, fmt, prec, rnd, x); if (ret == -1) { if (spec == 3 && (MPFR_GET_EXP (x) > INT_MAX || MPFR_GET_EXP (x) < -INT_MAX)) /* normal failure: x is too large to be output with full precision */ { mpfr_fprintf (fout, "too large !"); } else { mpfr_printf ("Error in mpfr_fprintf(fout, \"%s\", %d, %s, %Re)\n", fmt, prec, mpfr_print_rnd_mode (rnd), x); exit (1); } } mpfr_fprintf (fout, "\n"); } mpfr_set_emin (old_emin); mpfr_set_emax (old_emax); mpfr_clear (x); } static void bug_20090316 (FILE *fout) { mpfr_t x; mpfr_init2 (x, 53); /* bug 20090316: fixed in r6112 */ mpfr_set_ui_2exp (x, 0x60fa2916, -30, MPFR_RNDN); check (fout, "%-#.4095RDg\n", x); mpfr_clear (x); } int main (int argc, char *argv[]) { FILE *fout; int N; tests_start_mpfr (); /* with no argument: prints to /dev/null, tfprintf N: prints N tests to stdout */ if (argc == 1) { N = 1000; fout = fopen ("/dev/null", "w"); /* If we failed to open this device, try with a dummy file */ if (fout == NULL) { fout = fopen ("mpfrtest.txt", "w"); if (fout == NULL) { printf ("Can't open /dev/null or a temporary file\n"); exit (1); } } } else { fout = stdout; N = atoi (argv[1]); } check_special (fout); check_mixed (fout); check_random (fout, N); bug_20090316 (fout); fclose (fout); tests_end_mpfr (); return 0; } #else /* MPFR_VERSION */ int main (void) { printf ("Warning! Test disabled for this MPFR version.\n"); return 0; } #endif /* MPFR_VERSION */ #else /* HAVE_STDARG */ int main (void) { /* We have nothing to test. */ return 77; } #endif /* HAVE_STDARG */