stdio-common/tst-printf.c

   1 /* Copyright (C) 1991, 1992, 1993, 1995, 1996 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 #ifdef  BSD
  20 #include </usr/include/stdio.h>
  21 #define EXIT_SUCCESS 0
  22 #else
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #endif
  27
  28 #include <float.h>
  29
  30 void rfg1 (void);
  31 void rfg2 (void);
  32
  33
  34 void
  35 fmtchk (const char *fmt)
  36 {
  37   (void) fputs(fmt, stdout);
  38   (void) printf(":\t`");
  39   (void) printf(fmt, 0x12);
  40   (void) printf("'\n");
  41 }
  42
  43 void
  44 fmtst1chk (const char *fmt)
  45 {
  46   (void) fputs(fmt, stdout);
  47   (void) printf(":\t`");
  48   (void) printf(fmt, 4, 0x12);
  49   (void) printf("'\n");
  50 }
  51
  52 void
  53 fmtst2chk (const char *fmt)
  54 {
  55   (void) fputs(fmt, stdout);
  56   (void) printf(":\t`");
  57   (void) printf(fmt, 4, 4, 0x12);
  58   (void) printf("'\n");
  59 }
  60 \f
  61 /* This page is covered by the following copyright: */
  62
  63 /* (C) Copyright C E Chew
  64  *
  65  * Feel free to copy, use and distribute this software provided:
  66  *
  67  *      1. you do not pretend that you wrote it
  68  *      2. you leave this copyright notice intact.
  69  */
  70
  71 /*
  72  * Extracted from exercise.c for glibc-1.05 bug report by Bruce Evans.
  73  */
  74
  75 #define DEC -123
  76 #define INT 255
  77 #define UNS (~0)
  78
  79 /* Formatted Output Test
  80  *
  81  * This exercises the output formatting code.
  82  */
  83
  84 void
  85 fp_test (void)
  86 {
  87   int i, j, k, l;
  88   char buf[7];
  89   char *prefix = buf;
  90   char tp[20];
  91
  92   puts("\nFormatted output test");
  93   printf("prefix  6d      6o      6x      6X      6u\n");
  94   strcpy(prefix, "%");
  95   for (i = 0; i < 2; i++) {
  96     for (j = 0; j < 2; j++) {
  97       for (k = 0; k < 2; k++) {
  98         for (l = 0; l < 2; l++) {
  99           strcpy(prefix, "%");
 100           if (i == 0) strcat(prefix, "-");
 101           if (j == 0) strcat(prefix, "+");
 102           if (k == 0) strcat(prefix, "#");
 103           if (l == 0) strcat(prefix, "0");
 104           printf("%5s |", prefix);
 105           strcpy(tp, prefix);
 106           strcat(tp, "6d |");
 107           printf(tp, DEC);
 108           strcpy(tp, prefix);
 109           strcat(tp, "6o |");
 110           printf(tp, INT);
 111           strcpy(tp, prefix);
 112           strcat(tp, "6x |");
 113           printf(tp, INT);
 114           strcpy(tp, prefix);
 115           strcat(tp, "6X |");
 116           printf(tp, INT);
 117           strcpy(tp, prefix);
 118           strcat(tp, "6u |");
 119           printf(tp, UNS);
 120           printf("\n");
 121         }
 122       }
 123     }
 124   }
 125   printf("%10s\n", (char *) NULL);
 126   printf("%-10s\n", (char *) NULL);
 127 }
 128 \f
 129 int
 130 main (int argc, char *argv[])
 131 {
 132   static char shortstr[] = "Hi, Z.";
 133   static char longstr[] = "Good morning, Doctor Chandra.  This is Hal.  \
 134 I am ready for my first lesson today.";
 135
 136   fmtchk("%.4x");
 137   fmtchk("%04x");
 138   fmtchk("%4.4x");
 139   fmtchk("%04.4x");
 140   fmtchk("%4.3x");
 141   fmtchk("%04.3x");
 142
 143   fmtst1chk("%.*x");
 144   fmtst1chk("%0*x");
 145   fmtst2chk("%*.*x");
 146   fmtst2chk("%0*.*x");
 147
 148 #ifndef BSD
 149   printf("bad format:\t\"%z\"\n");
 150   printf("nil pointer (padded):\t\"%10p\"\n", (void *) NULL);
 151 #endif
 152
 153   printf("decimal negative:\t\"%d\"\n", -2345);
 154   printf("octal negative:\t\"%o\"\n", -2345);
 155   printf("hex negative:\t\"%x\"\n", -2345);
 156   printf("long decimal number:\t\"%ld\"\n", -123456L);
 157   printf("long octal negative:\t\"%lo\"\n", -2345L);
 158   printf("long unsigned decimal number:\t\"%lu\"\n", -123456L);
 159   printf("zero-padded LDN:\t\"%010ld\"\n", -123456L);
 160   printf("left-adjusted ZLDN:\t\"%-010ld\"\n", -123456);
 161   printf("space-padded LDN:\t\"%10ld\"\n", -123456L);
 162   printf("left-adjusted SLDN:\t\"%-10ld\"\n", -123456L);
 163
 164   printf("zero-padded string:\t\"%010s\"\n", shortstr);
 165   printf("left-adjusted Z string:\t\"%-010s\"\n", shortstr);
 166   printf("space-padded string:\t\"%10s\"\n", shortstr);
 167   printf("left-adjusted S string:\t\"%-10s\"\n", shortstr);
 168   printf("null string:\t\"%s\"\n", (char *)NULL);
 169   printf("limited string:\t\"%.22s\"\n", longstr);
 170
 171   printf("e-style >= 1:\t\"%e\"\n", 12.34);
 172   printf("e-style >= .1:\t\"%e\"\n", 0.1234);
 173   printf("e-style < .1:\t\"%e\"\n", 0.001234);
 174   printf("e-style big:\t\"%.60e\"\n", 1e20);
 175   printf ("e-style == .1:\t\"%e\"\n", 0.1);
 176   printf("f-style >= 1:\t\"%f\"\n", 12.34);
 177   printf("f-style >= .1:\t\"%f\"\n", 0.1234);
 178   printf("f-style < .1:\t\"%f\"\n", 0.001234);
 179   printf("g-style >= 1:\t\"%g\"\n", 12.34);
 180   printf("g-style >= .1:\t\"%g\"\n", 0.1234);
 181   printf("g-style < .1:\t\"%g\"\n", 0.001234);
 182   printf("g-style big:\t\"%.60g\"\n", 1e20);
 183
 184   printf (" %6.5f\n", .099999999860301614);
 185   printf (" %6.5f\n", .1);
 186   printf ("x%5.4fx\n", .5);
 187
 188   printf ("%#03x\n", 1);
 189
 190   {
 191     double d = FLT_MIN;
 192     int niter = 17;
 193
 194     while (niter-- != 0)
 195       printf ("%.17e\n", d / 2);
 196     fflush (stdout);
 197   }
 198
 199   printf ("%15.5e\n", 4.9406564584124654e-324);
 200
 201 #define FORMAT "|%12.4f|%12.4e|%12.4g|\n"
 202   printf (FORMAT, 0.0, 0.0, 0.0);
 203   printf (FORMAT, 1.0, 1.0, 1.0);
 204   printf (FORMAT, -1.0, -1.0, -1.0);
 205   printf (FORMAT, 100.0, 100.0, 100.0);
 206   printf (FORMAT, 1000.0, 1000.0, 1000.0);
 207   printf (FORMAT, 10000.0, 10000.0, 10000.0);
 208   printf (FORMAT, 12345.0, 12345.0, 12345.0);
 209   printf (FORMAT, 100000.0, 100000.0, 100000.0);
 210   printf (FORMAT, 123456.0, 123456.0, 123456.0);
 211 #undef  FORMAT
 212
 213   {
 214     char buf[20];
 215     printf ("snprintf (\"%%30s\", \"foo\") == %d, \"%.*s\"\n",
 216             snprintf (buf, sizeof (buf), "%30s", "foo"), sizeof (buf), buf);
 217   }
 218
 219   fp_test ();
 220
 221   printf ("%e should be 1.234568e+06\n", 1234567.8);
 222   printf ("%f should be 1234567.800000\n", 1234567.8);
 223   printf ("%g should be 1.23457e+06\n", 1234567.8);
 224   printf ("%g should be 123.456\n", 123.456);
 225   printf ("%g should be 1e+06\n", 1000000.0);
 226   printf ("%g should be 10\n", 10.0);
 227   printf ("%g should be 0.02\n", 0.02);
 228
 229   {
 230     double x=1.0;
 231     printf("%.17f\n",(1.0/x/10.0+1.0)*x-x);
 232   }
 233
 234   puts ("--- Should be no further output. ---");
 235   rfg1 ();
 236   rfg2 ();
 237
 238   {
 239     char buf[200];
 240     int result;
 241
 242     sprintf(buf,"%*s%*s%*s",-1,"one",-20,"two",-30,"three");
 243
 244     result = strcmp (buf,
 245                      "onetwo                 three                         ");
 246
 247     puts (result != 0 ? "Test failed!" : "Test ok.");
 248     return result != 0;
 249   }
 250 }
 251 \f
 252 void
 253 rfg1 (void)
 254 {
 255   char buf[100];
 256
 257   sprintf (buf, "%5.s", "xyz");
 258   if (strcmp (buf, "     ") != 0)
 259     printf ("got: '%s', expected: '%s'\n", buf, "     ");
 260   sprintf (buf, "%5.f", 33.3);
 261   if (strcmp (buf, "   33") != 0)
 262     printf ("got: '%s', expected: '%s'\n", buf, "   33");
 263   sprintf (buf, "%8.e", 33.3e7);
 264   if (strcmp (buf, "   3e+08") != 0)
 265     printf ("got: '%s', expected: '%s'\n", buf, "   3e+08");
 266   sprintf (buf, "%8.E", 33.3e7);
 267   if (strcmp (buf, "   3E+08") != 0)
 268     printf ("got: '%s', expected: '%s'\n", buf, "   3E+08");
 269   sprintf (buf, "%.g", 33.3);
 270   if (strcmp (buf, "3e+01") != 0)
 271     printf ("got: '%s', expected: '%s'\n", buf, "3e+01");
 272   sprintf (buf, "%.G", 33.3);
 273   if (strcmp (buf, "3E+01") != 0)
 274     printf ("got: '%s', expected: '%s'\n", buf, "3E+01");
 275 }
 276
 277 void
 278 rfg2 (void)
 279 {
 280   int prec;
 281   char buf[100];
 282
 283   prec = 0;
 284   sprintf (buf, "%.*g", prec, 3.3);
 285   if (strcmp (buf, "3") != 0)
 286     printf ("got: '%s', expected: '%s'\n", buf, "3");
 287   prec = 0;
 288   sprintf (buf, "%.*G", prec, 3.3);
 289   if (strcmp (buf, "3") != 0)
 290     printf ("got: '%s', expected: '%s'\n", buf, "3");
 291   prec = 0;
 292   sprintf (buf, "%7.*G", prec, 3.33);
 293   if (strcmp (buf, "      3") != 0)
 294     printf ("got: '%s', expected: '%s'\n", buf, "      3");
 295   prec = 3;
 296   sprintf (buf, "%04.*o", prec, 33);
 297   if (strcmp (buf, " 041") != 0)
 298     printf ("got: '%s', expected: '%s'\n", buf, " 041");
 299   prec = 7;
 300   sprintf (buf, "%09.*u", prec, 33);
 301   if (strcmp (buf, "  0000033") != 0)
 302     printf ("got: '%s', expected: '%s'\n", buf, "  0000033");
 303   prec = 3;
 304   sprintf (buf, "%04.*x", prec, 33);
 305   if (strcmp (buf, " 021") != 0)
 306     printf ("got: '%s', expected: '%s'\n", buf, " 021");
 307   prec = 3;
 308   sprintf (buf, "%04.*X", prec, 33);
 309   if (strcmp (buf, " 021") != 0)
 310     printf ("got: '%s', expected: '%s'\n", buf, " 021");
 311 }