stdio-common/tst-printf.c

   1 /* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <ansidecl.h>
  20 #ifdef  BSD
  21 #include </usr/include/stdio.h>
  22 #define EXIT_SUCCESS 0
  23 #else
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #endif
  28
  29 #include <float.h>
  30
  31
  32 void
  33 DEFUN(fmtchk, (fmt), CONST char *fmt)
  34 {
  35   (void) fputs(fmt, stdout);
  36   (void) printf(":\t`");
  37   (void) printf(fmt, 0x12);
  38   (void) printf("'\n");
  39 }
  40
  41 void
  42 DEFUN(fmtst1chk, (fmt), CONST char *fmt)
  43 {
  44   (void) fputs(fmt, stdout);
  45   (void) printf(":\t`");
  46   (void) printf(fmt, 4, 0x12);
  47   (void) printf("'\n");
  48 }
  49
  50 void
  51 DEFUN(fmtst2chk, (fmt), CONST char *fmt)
  52 {
  53   (void) fputs(fmt, stdout);
  54   (void) printf(":\t`");
  55   (void) printf(fmt, 4, 4, 0x12);
  56   (void) printf("'\n");
  57 }
  58 \f
  59 /* This page is covered by the following copyright: */
  60
  61 /* (C) Copyright C E Chew
  62  *
  63  * Feel free to copy, use and distribute this software provided:
  64  *
  65  *      1. you do not pretend that you wrote it
  66  *      2. you leave this copyright notice intact.
  67  */
  68
  69 /*
  70  * Extracted from exercise.c for glibc-1.05 bug report by Bruce Evans.
  71  */
  72
  73 #define DEC -123
  74 #define INT 255
  75 #define UNS (~0)
  76
  77 /* Formatted Output Test
  78  *
  79  * This exercises the output formatting code.
  80  */
  81
  82 void
  83 DEFUN_VOID(fp_test)
  84 {
  85   int i, j, k, l;
  86   char buf[7];
  87   char *prefix = buf;
  88   char tp[20];
  89
  90   puts("\nFormatted output test");
  91   printf("prefix  6d      6o      6x      6X      6u\n");
  92   strcpy(prefix, "%");
  93   for (i = 0; i < 2; i++) {
  94     for (j = 0; j < 2; j++) {
  95       for (k = 0; k < 2; k++) {
  96         for (l = 0; l < 2; l++) {
  97           strcpy(prefix, "%");
  98           if (i == 0) strcat(prefix, "-");
  99           if (j == 0) strcat(prefix, "+");
 100           if (k == 0) strcat(prefix, "#");
 101           if (l == 0) strcat(prefix, "0");
 102           printf("%5s |", prefix);
 103           strcpy(tp, prefix);
 104           strcat(tp, "6d |");
 105           printf(tp, DEC);
 106           strcpy(tp, prefix);
 107           strcat(tp, "6o |");
 108           printf(tp, INT);
 109           strcpy(tp, prefix);
 110           strcat(tp, "6x |");
 111           printf(tp, INT);
 112           strcpy(tp, prefix);
 113           strcat(tp, "6X |");
 114           printf(tp, INT);
 115           strcpy(tp, prefix);
 116           strcat(tp, "6u |");
 117           printf(tp, UNS);
 118           printf("\n");
 119         }
 120       }
 121     }
 122   }
 123   printf("%10s\n", (char *) NULL);
 124   printf("%-10s\n", (char *) NULL);
 125 }
 126 \f
 127 int
 128 DEFUN_VOID(main)
 129 {
 130   static char shortstr[] = "Hi, Z.";
 131   static char longstr[] = "Good morning, Doctor Chandra.  This is Hal.  \
 132 I am ready for my first lesson today.";
 133
 134   fmtchk("%.4x");
 135   fmtchk("%04x");
 136   fmtchk("%4.4x");
 137   fmtchk("%04.4x");
 138   fmtchk("%4.3x");
 139   fmtchk("%04.3x");
 140
 141   fmtst1chk("%.*x");
 142   fmtst1chk("%0*x");
 143   fmtst2chk("%*.*x");
 144   fmtst2chk("%0*.*x");
 145
 146 #ifndef BSD
 147   printf("bad format:\t\"%z\"\n");
 148   printf("nil pointer (padded):\t\"%10p\"\n", (PTR) NULL);
 149 #endif
 150
 151   printf("decimal negative:\t\"%d\"\n", -2345);
 152   printf("octal negative:\t\"%o\"\n", -2345);
 153   printf("hex negative:\t\"%x\"\n", -2345);
 154   printf("long decimal number:\t\"%ld\"\n", -123456L);
 155   printf("long octal negative:\t\"%lo\"\n", -2345L);
 156   printf("long unsigned decimal number:\t\"%lu\"\n", -123456L);
 157   printf("zero-padded LDN:\t\"%010ld\"\n", -123456L);
 158   printf("left-adjusted ZLDN:\t\"%-010ld\"\n", -123456);
 159   printf("space-padded LDN:\t\"%10ld\"\n", -123456L);
 160   printf("left-adjusted SLDN:\t\"%-10ld\"\n", -123456L);
 161
 162   printf("zero-padded string:\t\"%010s\"\n", shortstr);
 163   printf("left-adjusted Z string:\t\"%-010s\"\n", shortstr);
 164   printf("space-padded string:\t\"%10s\"\n", shortstr);
 165   printf("left-adjusted S string:\t\"%-10s\"\n", shortstr);
 166   printf("null string:\t\"%s\"\n", (char *)NULL);
 167   printf("limited string:\t\"%.22s\"\n", longstr);
 168
 169   printf("e-style >= 1:\t\"%e\"\n", 12.34);
 170   printf("e-style >= .1:\t\"%e\"\n", 0.1234);
 171   printf("e-style < .1:\t\"%e\"\n", 0.001234);
 172   printf("e-style big:\t\"%.60e\"\n", 1e20);
 173   printf ("e-style == .1:\t\"%e\"\n", 0.1);
 174   printf("f-style >= 1:\t\"%f\"\n", 12.34);
 175   printf("f-style >= .1:\t\"%f\"\n", 0.1234);
 176   printf("f-style < .1:\t\"%f\"\n", 0.001234);
 177   printf("g-style >= 1:\t\"%g\"\n", 12.34);
 178   printf("g-style >= .1:\t\"%g\"\n", 0.1234);
 179   printf("g-style < .1:\t\"%g\"\n", 0.001234);
 180   printf("g-style big:\t\"%.60g\"\n", 1e20);
 181
 182   printf (" %6.5f\n", .099999999860301614);
 183   printf (" %6.5f\n", .1);
 184   printf ("x%5.4fx\n", .5);
 185
 186   printf ("%#03x\n", 1);
 187
 188   {
 189     double d = FLT_MIN;
 190     int niter = 17;
 191
 192     while (niter-- != 0)
 193       printf ("%.17e\n", d / 2);
 194     fflush (stdout);
 195   }
 196
 197   printf ("%15.5e\n", 4.9406564584124654e-324);
 198
 199 #define FORMAT "|%12.4f|%12.4e|%12.4g|\n"
 200   printf (FORMAT, 0.0, 0.0, 0.0);
 201   printf (FORMAT, 1.0, 1.0, 1.0);
 202   printf (FORMAT, -1.0, -1.0, -1.0);
 203   printf (FORMAT, 100.0, 100.0, 100.0);
 204   printf (FORMAT, 1000.0, 1000.0, 1000.0);
 205   printf (FORMAT, 10000.0, 10000.0, 10000.0);
 206   printf (FORMAT, 12345.0, 12345.0, 12345.0);
 207   printf (FORMAT, 100000.0, 100000.0, 100000.0);
 208   printf (FORMAT, 123456.0, 123456.0, 123456.0);
 209 #undef  FORMAT
 210
 211   {
 212     char buf[20];
 213     printf ("snprintf (\"%%30s\", \"foo\") == %d, \"%.*s\"\n",
 214             snprintf (buf, sizeof (buf), "%30s", "foo"), sizeof (buf), buf);
 215   }
 216
 217   fp_test ();
 218
 219   printf ("%e should be 1.234568e+06\n", 1234567.8);
 220   printf ("%f should be 1234567.800000\n", 1234567.8);
 221   printf ("%g should be 1.23457e+06\n", 1234567.8);
 222   printf ("%g should be 123.456\n", 123.456);
 223   printf ("%g should be 1e+06\n", 1000000.0);
 224   printf ("%g should be 10\n", 10.0);
 225   printf ("%g should be 0.02\n", 0.02);
 226
 227   {
 228     double x=1.0;
 229     printf("%.17f\n",(1.0/x/10.0+1.0)*x-x);
 230   }
 231
 232   puts ("--- Should be no further output. ---");
 233   rfg1 ();
 234   rfg2 ();
 235
 236   exit(EXIT_SUCCESS);
 237 }
 238 \f
 239 rfg1 ()
 240 {
 241   char buf[100];
 242
 243   sprintf (buf, "%5.s", "xyz");
 244   if (strcmp (buf, "     ") != 0)
 245     printf ("got: '%s', expected: '%s'\n", buf, "     ");
 246   sprintf (buf, "%5.f", 33.3);
 247   if (strcmp (buf, "   33") != 0)
 248     printf ("got: '%s', expected: '%s'\n", buf, "   33");
 249   sprintf (buf, "%8.e", 33.3e7);
 250   if (strcmp (buf, "   3e+08") != 0)
 251     printf ("got: '%s', expected: '%s'\n", buf, "   3e+08");
 252   sprintf (buf, "%8.E", 33.3e7);
 253   if (strcmp (buf, "   3E+08") != 0)
 254     printf ("got: '%s', expected: '%s'\n", buf, "   3E+08");
 255   sprintf (buf, "%.g", 33.3);
 256   if (strcmp (buf, "3e+01") != 0)
 257     printf ("got: '%s', expected: '%s'\n", buf, "3e+01");
 258   sprintf (buf, "%.G", 33.3);
 259   if (strcmp (buf, "3E+01") != 0)
 260     printf ("got: '%s', expected: '%s'\n", buf, "3E+01");
 261   return 0;
 262 }
 263
 264 rfg2 ()
 265 {
 266   int prec;
 267   char buf[100];
 268
 269   prec = 0;
 270   sprintf (buf, "%.*g", prec, 3.3);
 271   if (strcmp (buf, "3") != 0)
 272     printf ("got: '%s', expected: '%s'\n", buf, "3");
 273   prec = 0;
 274   sprintf (buf, "%.*G", prec, 3.3);
 275   if (strcmp (buf, "3") != 0)
 276     printf ("got: '%s', expected: '%s'\n", buf, "3");
 277   prec = 0;
 278   sprintf (buf, "%7.*G", prec, 3.33);
 279   if (strcmp (buf, "      3") != 0)
 280     printf ("got: '%s', expected: '%s'\n", buf, "      3");
 281   prec = 3;
 282   sprintf (buf, "%04.*o", prec, 33);
 283   if (strcmp (buf, " 041") != 0)
 284     printf ("got: '%s', expected: '%s'\n", buf, " 041");
 285   prec = 7;
 286   sprintf (buf, "%09.*u", prec, 33);
 287   if (strcmp (buf, "  0000033") != 0)
 288     printf ("got: '%s', expected: '%s'\n", buf, "  0000033");
 289   prec = 3;
 290   sprintf (buf, "%04.*x", prec, 33);
 291   if (strcmp (buf, " 021") != 0)
 292     printf ("got: '%s', expected: '%s'\n", buf, " 021");
 293   prec = 3;
 294   sprintf (buf, "%04.*X", prec, 33);
 295   if (strcmp (buf, " 021") != 0)
 296     printf ("got: '%s', expected: '%s'\n", buf, " 021");
 297   return 0;
 298 }