1/* tio_str-- Test file for mpc_inp_str and mpc_out_str. 2 3Copyright (C) 2009, 2011 INRIA 4 5This file is part of GNU MPC. 6 7GNU MPC is free software; you can redistribute it and/or modify it under 8the terms of the GNU Lesser General Public License as published by the 9Free Software Foundation; either version 3 of the License, or (at your 10option) any later version. 11 12GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 14FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for 15more details. 16 17You should have received a copy of the GNU Lesser General Public License 18along with this program. If not, see http://www.gnu.org/licenses/ . 19*/ 20 21#include "mpc-tests.h" 22 23#ifdef HAVE_UNISTD_H 24#define _POSIX_C_SOURCE 1 /* apparently needed on Darwin */ 25#include <unistd.h> /* for dup, dup2, STDIN_FILENO and STDOUT_FILENO */ 26#else 27#define STDIN_FILENO 0 28#define STDOUT_FILENO 1 29#endif 30 31extern unsigned long line_number; 32/* character appearing next in the file, may be EOF */ 33extern int nextchar; 34extern const char *rnd_mode[]; 35 36static void 37check_file (const char* file_name) 38{ 39 FILE *fp; 40 41 int tmp; 42 int base; 43 int inex_re; 44 int inex_im; 45 mpc_t expected, got; 46 mpc_rnd_t rnd = MPC_RNDNN; 47 int inex = 0, expected_inex; 48 size_t expected_size, size; 49 known_signs_t ks = {1, 1}; 50 51 fp = open_data_file (file_name); 52 53 mpc_init2 (expected, 53); 54 mpc_init2 (got, 53); 55 56 /* read data file */ 57 line_number = 1; 58 nextchar = getc (fp); 59 skip_whitespace_comments (fp); 60 61 while (nextchar != EOF) 62 { 63 /* 1. read a line of data: expected result, base, rounding mode */ 64 read_ternary (fp, &inex_re); 65 read_ternary (fp, &inex_im); 66 read_mpc (fp, expected, &ks); 67 if (inex_re == TERNARY_ERROR || inex_im == TERNARY_ERROR) 68 expected_inex = -1; 69 else 70 expected_inex = MPC_INEX (inex_re, inex_im); 71 read_int (fp, &tmp, "size"); 72 expected_size = (size_t)tmp; 73 read_int (fp, &base, "base"); 74 read_mpc_rounding_mode (fp, &rnd); 75 76 /* 2. read string at the same precision as the expected result */ 77 while (nextchar != '"') 78 nextchar = getc (fp); 79 mpfr_set_prec (mpc_realref (got), MPC_PREC_RE (expected)); 80 mpfr_set_prec (mpc_imagref (got), MPC_PREC_IM (expected)); 81 inex = mpc_inp_str (got, fp, &size, base, rnd); 82 83 /* 3. compare this result with the expected one */ 84 if (inex != expected_inex || !same_mpc_value (got, expected, ks) 85 || size != expected_size) 86 { 87 printf ("mpc_inp_str failed (line %lu) with rounding mode %s\n", 88 line_number, rnd_mode[rnd]); 89 if (inex != expected_inex) 90 printf(" got inexact value: %d\nexpected inexact value: %d\n", 91 inex, expected_inex); 92 if (size != expected_size) 93 printf (" got size: %lu\nexpected size: %lu\n ", 94 (unsigned long int) size, (unsigned long int) expected_size); 95 printf (" "); 96 MPC_OUT (got); 97 MPC_OUT (expected); 98 99 exit (1); 100 } 101 102 while ((nextchar = getc (fp)) != '"'); 103 nextchar = getc (fp); 104 105 skip_whitespace_comments (fp); 106 } 107 108 mpc_clear (expected); 109 mpc_clear (got); 110 close_data_file (fp); 111} 112 113static void 114check_io_str (mpc_ptr read_number, mpc_ptr expected) 115{ 116 char tmp_file[] = "mpc_test"; 117 FILE *fp; 118 size_t sz; 119 120 if (!(fp = fopen (tmp_file, "w"))) 121 { 122 printf ("Error: Could not open file %s in write mode\n", tmp_file); 123 exit (1); 124 } 125 126 mpc_out_str (fp, 10, 0, expected, MPC_RNDNN); 127 fclose (fp); 128 129 if (!(fp = fopen (tmp_file, "r"))) 130 { 131 printf ("Error: Could not open file %s in read mode\n", tmp_file); 132 exit (1); 133 }; 134 if (mpc_inp_str (read_number, fp, &sz, 10, MPC_RNDNN) == -1) 135 { 136 printf ("Error: mpc_inp_str cannot correctly re-read number " 137 "in file %s\n", tmp_file); 138 139 exit (1); 140 } 141 fclose (fp); 142 143 /* mpc_cmp set erange flag when an operand is a NaN */ 144 mpfr_clear_flags (); 145 if (mpc_cmp (read_number, expected) != 0 || mpfr_erangeflag_p()) 146 { 147 printf ("Error: inp_str o out_str <> Id\n"); 148 MPC_OUT (read_number); 149 MPC_OUT (expected); 150 151 exit (1); 152 } 153} 154 155#ifndef MPC_NO_STREAM_REDIRECTION 156/* test out_str with stream=NULL */ 157static void 158check_stdout (mpc_ptr read_number, mpc_ptr expected) 159{ 160 char tmp_file[] = "mpc_test"; 161 int fd; 162 size_t sz; 163 164 fflush (stdout); 165 fd = dup (STDOUT_FILENO); 166 if (freopen (tmp_file, "w", stdout) == NULL) 167 { 168 printf ("mpc_inp_str cannot redirect stdout\n"); 169 exit (1); 170 } 171 mpc_out_str (NULL, 2, 0, expected, MPC_RNDNN); 172 fflush (stdout); 173 dup2 (fd, STDOUT_FILENO); 174 close (fd); 175 clearerr (stdout); 176 177 fflush (stdin); 178 fd = dup (STDIN_FILENO); 179 if (freopen (tmp_file, "r", stdin) == NULL) 180 { 181 printf ("mpc_inp_str cannot redirect stdout\n"); 182 exit (1); 183 } 184 if (mpc_inp_str (read_number, NULL, &sz, 2, MPC_RNDNN) == -1) 185 { 186 printf ("mpc_inp_str cannot correctly re-read number " 187 "in file %s\n", tmp_file); 188 exit (1); 189 } 190 mpfr_clear_flags (); /* mpc_cmp set erange flag when an operand is 191 a NaN */ 192 if (mpc_cmp (read_number, expected) != 0 || mpfr_erangeflag_p()) 193 { 194 printf ("mpc_inp_str did not read the number which was written by " 195 "mpc_out_str\n"); 196 MPC_OUT (read_number); 197 MPC_OUT (expected); 198 exit (1); 199 } 200 fflush (stdin); 201 dup2 (fd, STDIN_FILENO); 202 close (fd); 203 clearerr (stdin); 204} 205#endif /* MPC_NO_STREAM_REDIRECTION */ 206 207int 208main (void) 209{ 210 mpc_t z, x; 211 mpfr_prec_t prec; 212 213 test_start (); 214 215 mpc_init2 (z, 1000); 216 mpc_init2 (x, 1000); 217 218 check_file ("inp_str.dat"); 219 220 for (prec = 2; prec <= 1000; prec+=7) 221 { 222 mpc_set_prec (z, prec); 223 mpc_set_prec (x, prec); 224 225 mpc_set_si_si (x, 1, 1, MPC_RNDNN); 226 check_io_str (z, x); 227 228 mpc_set_si_si (x, -1, 1, MPC_RNDNN); 229 check_io_str (z, x); 230 231 mpfr_set_inf (mpc_realref(x), -1); 232 mpfr_set_inf (mpc_imagref(x), +1); 233 check_io_str (z, x); 234 235 test_default_random (x, -1024, 1024, 128, 25); 236 check_io_str (z, x); 237 } 238 239#ifndef MPC_NO_STREAM_REDIRECTION 240 mpc_set_si_si (x, 1, -4, MPC_RNDNN); 241 mpc_div_ui (x, x, 3, MPC_RNDDU); 242 243 check_stdout(z, x); 244#endif 245 246 mpc_clear (z); 247 mpc_clear (x); 248 249 test_end (); 250 251 return 0; 252} 253