1/* tio_str-- Test file for mpc_inp_str and mpc_out_str. 2 3Copyright (C) 2009, 2011, 2013, 2014 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#ifndef _POSIX_C_SOURCE 25#define _POSIX_C_SOURCE 1 /* apparently needed on Darwin */ 26#endif 27#include <unistd.h> /* for dup, dup2, STDIN_FILENO and STDOUT_FILENO */ 28#else 29#define STDIN_FILENO 0 30#define STDOUT_FILENO 1 31#endif 32 33extern unsigned long line_number; 34/* character appearing next in the file, may be EOF */ 35extern int nextchar; 36extern const char *mpc_rnd_mode[]; 37 38static void 39check_file (const char* file_name) 40{ 41 FILE *fp; 42 43 int tmp; 44 int base; 45 int inex_re; 46 int inex_im; 47 mpc_t expected, got; 48 mpc_rnd_t rnd = MPC_RNDNN; 49 int inex = 0, expected_inex; 50 size_t expected_size, size; 51 known_signs_t ks = {1, 1}; 52 53 fp = open_data_file (file_name); 54 55 mpc_init2 (expected, 53); 56 mpc_init2 (got, 53); 57 58 /* read data file */ 59 line_number = 1; 60 nextchar = getc (fp); 61 skip_whitespace_comments (fp); 62 63 while (nextchar != EOF) 64 { 65 /* 1. read a line of data: expected result, base, rounding mode */ 66 read_ternary (fp, &inex_re); 67 read_ternary (fp, &inex_im); 68 read_mpc (fp, expected, &ks); 69 if (inex_re == TERNARY_ERROR || inex_im == TERNARY_ERROR) 70 expected_inex = -1; 71 else 72 expected_inex = MPC_INEX (inex_re, inex_im); 73 read_int (fp, &tmp, "size"); 74 expected_size = (size_t)tmp; 75 read_int (fp, &base, "base"); 76 read_mpc_rounding_mode (fp, &rnd); 77 78 /* 2. read string at the same precision as the expected result */ 79 while (nextchar != '"') 80 nextchar = getc (fp); 81 mpfr_set_prec (mpc_realref (got), MPC_PREC_RE (expected)); 82 mpfr_set_prec (mpc_imagref (got), MPC_PREC_IM (expected)); 83 inex = mpc_inp_str (got, fp, &size, base, rnd); 84 85 /* 3. compare this result with the expected one */ 86 if (inex != expected_inex || !same_mpc_value (got, expected, ks) 87 || size != expected_size) 88 { 89 printf ("mpc_inp_str failed (line %lu) with rounding mode %s\n", 90 line_number, mpc_rnd_mode[rnd]); 91 if (inex != expected_inex) 92 printf(" got inexact value: %d\nexpected inexact value: %d\n", 93 inex, expected_inex); 94 if (size != expected_size) 95 printf (" got size: %lu\nexpected size: %lu\n ", 96 (unsigned long int) size, (unsigned long int) expected_size); 97 printf (" "); 98 MPC_OUT (got); 99 MPC_OUT (expected); 100 101 exit (1); 102 } 103 104 while ((nextchar = getc (fp)) != '"'); 105 nextchar = getc (fp); 106 107 skip_whitespace_comments (fp); 108 } 109 110 mpc_clear (expected); 111 mpc_clear (got); 112 close_data_file (fp); 113} 114 115static void 116check_io_str (mpc_ptr read_number, mpc_ptr expected) 117{ 118 char tmp_file[] = "mpc_test"; 119 FILE *fp; 120 size_t sz; 121 122 if (!(fp = fopen (tmp_file, "w"))) 123 { 124 printf ("Error: Could not open file %s in write mode\n", tmp_file); 125 exit (1); 126 } 127 128 mpc_out_str (fp, 10, 0, expected, MPC_RNDNN); 129 fclose (fp); 130 131 if (!(fp = fopen (tmp_file, "r"))) 132 { 133 printf ("Error: Could not open file %s in read mode\n", tmp_file); 134 exit (1); 135 }; 136 if (mpc_inp_str (read_number, fp, &sz, 10, MPC_RNDNN) == -1) 137 { 138 printf ("Error: mpc_inp_str cannot correctly re-read number " 139 "in file %s\n", tmp_file); 140 141 exit (1); 142 } 143 fclose (fp); 144 145 /* mpc_cmp set erange flag when an operand is a NaN */ 146 mpfr_clear_flags (); 147 if (mpc_cmp (read_number, expected) != 0 || mpfr_erangeflag_p()) 148 { 149 printf ("Error: inp_str o out_str <> Id\n"); 150 MPC_OUT (read_number); 151 MPC_OUT (expected); 152 153 exit (1); 154 } 155} 156 157#ifndef MPC_NO_STREAM_REDIRECTION 158/* test out_str with stream=NULL */ 159static void 160check_stdout (mpc_ptr read_number, mpc_ptr expected) 161{ 162 char tmp_file[] = "mpc_test"; 163 int fd; 164 size_t sz; 165 166 fflush (stdout); 167 fd = dup (STDOUT_FILENO); 168 if (freopen (tmp_file, "w", stdout) == NULL) 169 { 170 printf ("mpc_inp_str cannot redirect stdout\n"); 171 exit (1); 172 } 173 mpc_out_str (NULL, 2, 0, expected, MPC_RNDNN); 174 fflush (stdout); 175 dup2 (fd, STDOUT_FILENO); 176 close (fd); 177 clearerr (stdout); 178 179 fflush (stdin); 180 fd = dup (STDIN_FILENO); 181 if (freopen (tmp_file, "r", stdin) == NULL) 182 { 183 printf ("mpc_inp_str cannot redirect stdout\n"); 184 exit (1); 185 } 186 if (mpc_inp_str (read_number, NULL, &sz, 2, MPC_RNDNN) == -1) 187 { 188 printf ("mpc_inp_str cannot correctly re-read number " 189 "in file %s\n", tmp_file); 190 exit (1); 191 } 192 mpfr_clear_flags (); /* mpc_cmp set erange flag when an operand is 193 a NaN */ 194 if (mpc_cmp (read_number, expected) != 0 || mpfr_erangeflag_p()) 195 { 196 printf ("mpc_inp_str did not read the number which was written by " 197 "mpc_out_str\n"); 198 MPC_OUT (read_number); 199 MPC_OUT (expected); 200 exit (1); 201 } 202 fflush (stdin); 203 dup2 (fd, STDIN_FILENO); 204 close (fd); 205 clearerr (stdin); 206} 207#endif /* MPC_NO_STREAM_REDIRECTION */ 208 209int 210main (void) 211{ 212 mpc_t z, x; 213 mpfr_prec_t prec; 214 215 test_start (); 216 217 mpc_init2 (z, 1000); 218 mpc_init2 (x, 1000); 219 220 check_file ("inp_str.dat"); 221 222 for (prec = 2; prec <= 1000; prec+=7) 223 { 224 mpc_set_prec (z, prec); 225 mpc_set_prec (x, prec); 226 227 mpc_set_si_si (x, 1, 1, MPC_RNDNN); 228 check_io_str (z, x); 229 230 mpc_set_si_si (x, -1, 1, MPC_RNDNN); 231 check_io_str (z, x); 232 233 mpfr_set_inf (mpc_realref(x), -1); 234 mpfr_set_inf (mpc_imagref(x), +1); 235 check_io_str (z, x); 236 237 test_default_random (x, -1024, 1024, 128, 25); 238 check_io_str (z, x); 239 } 240 241#ifndef MPC_NO_STREAM_REDIRECTION 242 mpc_set_si_si (x, 1, -4, MPC_RNDNN); 243 mpc_div_ui (x, x, 3, MPC_RNDDU); 244 245 check_stdout(z, x); 246#endif 247 248 mpc_clear (z); 249 mpc_clear (x); 250 251 test_end (); 252 253 return 0; 254} 255