Annotation of OpenXM_contrib/gmp/tests/mpz/t-io_raw.c, Revision 1.1
1.1 ! ohara 1: /* Test mpz_inp_raw and mpz_out_raw.
! 2:
! 3: Copyright 2001 Free Software Foundation, Inc.
! 4:
! 5: This file is part of the GNU MP Library.
! 6:
! 7: The GNU MP Library is free software; you can redistribute it and/or modify
! 8: it under the terms of the GNU Lesser General Public License as published by
! 9: the Free Software Foundation; either version 2.1 of the License, or (at your
! 10: option) any later version.
! 11:
! 12: The GNU MP Library is distributed in the hope that it will be useful, but
! 13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 14: or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
! 15: License for more details.
! 16:
! 17: You should have received a copy of the GNU Lesser General Public License
! 18: along with the GNU MP Library; see the file COPYING.LIB. If not, write to
! 19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
! 20: MA 02111-1307, USA. */
! 21:
! 22: #include "config.h"
! 23:
! 24: #include <stdio.h>
! 25: #include <stdlib.h>
! 26: #include <string.h>
! 27: #if HAVE_UNISTD_H
! 28: #include <unistd.h>
! 29: #endif
! 30:
! 31: #include "gmp.h"
! 32: #include "gmp-impl.h"
! 33: #include "tests.h"
! 34:
! 35: #define FILENAME "t-io_raw.tmp"
! 36:
! 37:
! 38: /* In the fopen, "b" selects binary mode on DOS systems, meaning no
! 39: conversion of '\n' to and from CRLF. It's believed systems without such
! 40: nonsense will simply ignore the "b", but in case that's not so a plain
! 41: "w+" is attempted if "w+b" fails. */
! 42:
! 43: FILE *
! 44: fopen_wplusb_or_die (const char *filename)
! 45: {
! 46: FILE *fp;
! 47: fp = fopen (filename, "w+b");
! 48: if (fp == NULL)
! 49: fp = fopen (filename, "w+");
! 50:
! 51: if (fp == NULL)
! 52: {
! 53: printf ("Cannot create file %s\n", filename);
! 54: abort ();
! 55: }
! 56: return fp;
! 57: }
! 58:
! 59: /* use 0x80 to check nothing bad happens with sign extension etc */
! 60: #define BYTEVAL(i) (((i) + 1) | 0x80)
! 61:
! 62: void
! 63: check_in (void)
! 64: {
! 65: int i, j, zeros, neg, error = 0;
! 66: mpz_t want, got;
! 67: size_t want_ret, got_ret;
! 68: mp_size_t size;
! 69: FILE *fp;
! 70:
! 71: mpz_init (want);
! 72: mpz_init (got);
! 73:
! 74: for (i = 0; i < 32; i++)
! 75: {
! 76: for (zeros = 0; zeros < 8; zeros++)
! 77: {
! 78: for (neg = 0; neg <= 1; neg++)
! 79: {
! 80: want_ret = i + zeros + 4;
! 81:
! 82: /* need this to get the twos complement right */
! 83: ASSERT_ALWAYS (sizeof (size) >= 4);
! 84:
! 85: size = i + zeros;
! 86: if (neg)
! 87: size = -size;
! 88:
! 89: fp = fopen_wplusb_or_die (FILENAME);
! 90: for (j = 3; j >= 0; j--)
! 91: ASSERT_ALWAYS (putc ((size >> (j*8)) & 0xFF, fp) != EOF);
! 92: for (j = 0; j < zeros; j++)
! 93: ASSERT_ALWAYS (putc ('\0', fp) != EOF);
! 94: for (j = 0; j < i; j++)
! 95: ASSERT_ALWAYS (putc (BYTEVAL (j), fp) != EOF);
! 96: /* and some trailing garbage */
! 97: ASSERT_ALWAYS (putc ('x', fp) != EOF);
! 98: ASSERT_ALWAYS (putc ('y', fp) != EOF);
! 99: ASSERT_ALWAYS (putc ('z', fp) != EOF);
! 100: ASSERT_ALWAYS (fflush (fp) == 0);
! 101: rewind (fp);
! 102:
! 103: got_ret = mpz_inp_raw (got, fp);
! 104: ASSERT_ALWAYS (! ferror(fp));
! 105: ASSERT_ALWAYS (fclose (fp) == 0);
! 106:
! 107: MPZ_CHECK_FORMAT (got);
! 108:
! 109: if (got_ret != want_ret)
! 110: {
! 111: printf ("check_in: return value wrong\n");
! 112: error = 1;
! 113: }
! 114: if (mpz_cmp (got, want) != 0)
! 115: {
! 116: printf ("check_in: result wrong\n");
! 117: error = 1;
! 118: }
! 119: if (error)
! 120: {
! 121: printf (" i=%d zeros=%d neg=%d\n", i, zeros, neg);
! 122: printf (" got_ret %u\n", got_ret);
! 123: printf (" want_ret %u\n", want_ret);
! 124: mpz_trace (" got ", got);
! 125: mpz_trace (" want ", want);
! 126: abort ();
! 127: }
! 128:
! 129: mpz_neg (want, want);
! 130: }
! 131: }
! 132: mpz_mul_2exp (want, want, 8);
! 133: mpz_add_ui (want, want, (unsigned long) BYTEVAL (i));
! 134: }
! 135:
! 136: mpz_clear (want);
! 137: mpz_clear (got);
! 138: }
! 139:
! 140:
! 141: void
! 142: check_out (void)
! 143: {
! 144: int i, j, neg, error = 0;
! 145: mpz_t z;
! 146: char want[256], got[256], *p;
! 147: size_t want_len, got_ret, got_read;
! 148: mp_size_t size;
! 149: FILE *fp;
! 150:
! 151: mpz_init (z);
! 152:
! 153: for (i = 0; i < 32; i++)
! 154: {
! 155: for (neg = 0; neg <= 1; neg++)
! 156: {
! 157: want_len = i + 4;
! 158:
! 159: /* need this to get the twos complement right */
! 160: ASSERT_ALWAYS (sizeof (size) >= 4);
! 161:
! 162: size = i;
! 163: if (neg)
! 164: size = -size;
! 165:
! 166: p = want;
! 167: for (j = 3; j >= 0; j--)
! 168: *p++ = size >> (j*8);
! 169: for (j = 0; j < i; j++)
! 170: *p++ = BYTEVAL (j);
! 171: ASSERT_ALWAYS (p <= want + sizeof (want));
! 172:
! 173: fp = fopen_wplusb_or_die (FILENAME);
! 174: got_ret = mpz_out_raw (fp, z);
! 175: ASSERT_ALWAYS (fflush (fp) == 0);
! 176: rewind (fp);
! 177: got_read = fread (got, 1, sizeof(got), fp);
! 178: ASSERT_ALWAYS (! ferror(fp));
! 179: ASSERT_ALWAYS (fclose (fp) == 0);
! 180:
! 181: if (got_ret != want_len)
! 182: {
! 183: printf ("check_out: wrong return value\n");
! 184: error = 1;
! 185: }
! 186: if (got_read != want_len)
! 187: {
! 188: printf ("check_out: wrong number of bytes read back\n");
! 189: error = 1;
! 190: }
! 191: if (memcmp (want, got, want_len) != 0)
! 192: {
! 193: printf ("check_out: wrong data\n");
! 194: error = 1;
! 195: }
! 196: if (error)
! 197: {
! 198: printf (" i=%d neg=%d\n", i, neg);
! 199: mpz_trace (" z", z);
! 200: printf (" got_ret %u\n", got_ret);
! 201: printf (" got_read %u\n", got_read);
! 202: printf (" want_len %u\n", want_len);
! 203: printf (" want");
! 204: for (j = 0; j < want_len; j++)
! 205: printf (" %02X", (unsigned) (unsigned char) want[j]);
! 206: printf ("\n");
! 207: printf (" got ");
! 208: for (j = 0; j < want_len; j++)
! 209: printf (" %02X", (unsigned) (unsigned char) got[j]);
! 210: printf ("\n");
! 211: abort ();
! 212: }
! 213:
! 214: mpz_neg (z, z);
! 215: }
! 216: mpz_mul_2exp (z, z, 8);
! 217: mpz_add_ui (z, z, (unsigned long) BYTEVAL (i));
! 218: }
! 219:
! 220: mpz_clear (z);
! 221: }
! 222:
! 223:
! 224: void
! 225: check_rand (void)
! 226: {
! 227: gmp_randstate_ptr rands = RANDS;
! 228: int i, error = 0;
! 229: mpz_t got, want;
! 230: size_t inp_ret, out_ret;
! 231: FILE *fp;
! 232:
! 233: mpz_init (want);
! 234: mpz_init (got);
! 235:
! 236: for (i = 0; i < 500; i++)
! 237: {
! 238: mpz_erandomb (want, rands, 10*BITS_PER_MP_LIMB);
! 239: mpz_negrandom (want, rands);
! 240:
! 241: fp = fopen_wplusb_or_die (FILENAME);
! 242: out_ret = mpz_out_raw (fp, want);
! 243: ASSERT_ALWAYS (fflush (fp) == 0);
! 244: rewind (fp);
! 245: inp_ret = mpz_inp_raw (got, fp);
! 246: ASSERT_ALWAYS (fclose (fp) == 0);
! 247:
! 248: MPZ_CHECK_FORMAT (got);
! 249:
! 250: if (inp_ret != out_ret)
! 251: {
! 252: printf ("check_rand: different inp/out return values\n");
! 253: error = 1;
! 254: }
! 255: if (mpz_cmp (got, want) != 0)
! 256: {
! 257: printf ("check_rand: wrong result\n");
! 258: error = 1;
! 259: }
! 260: if (error)
! 261: {
! 262: printf (" out_ret %u\n", out_ret);
! 263: printf (" inp_ret %u\n", inp_ret);
! 264: mpz_trace (" want", want);
! 265: mpz_trace (" got ", got);
! 266: abort ();
! 267: }
! 268: }
! 269:
! 270: mpz_clear (got);
! 271: mpz_clear (want);
! 272: }
! 273:
! 274:
! 275: int
! 276: main (void)
! 277: {
! 278: tests_start ();
! 279: mp_trace_base = -16;
! 280:
! 281: check_in ();
! 282: check_out ();
! 283: check_rand ();
! 284:
! 285: unlink (FILENAME);
! 286: tests_end ();
! 287:
! 288: exit (0);
! 289: }
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