/* Copyright (C) 1991-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#ifdef	BSD

#include </usr/include/stdio.h>

#define EXIT_SUCCESS 0

#else

#include <limits.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#endif

#include <float.h>

#include <libc-diag.h>

/* This whole file is picayune tests of corner cases of printf format strings.

   The compiler warnings are not useful here.  */

DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");

#if __GNUC_PREREQ (7, 0)

/* Compiler warnings about snprintf output truncation should also be

   ignored.  */

DIAG_IGNORE_NEEDS_COMMENT (7.0, "-Wformat-truncation");

#endif

static void rfg1 (void);

static void rfg2 (void);

static void rfg3 (void);

static void

fmtchk (const char *fmt)

{

  (void) fputs(fmt, stdout);

  (void) printf(":\t`");

  (void) printf(fmt, 0x12);

  (void) printf("'\n");

}

static void

fmtst1chk (const char *fmt)

{

  (void) fputs(fmt, stdout);

  (void) printf(":\t`");

  (void) printf(fmt, 4, 0x12);

  (void) printf("'\n");

}

static void

fmtst2chk (const char *fmt)

{

  (void) fputs(fmt, stdout);

  (void) printf(":\t`");

  (void) printf(fmt, 4, 4, 0x12);

  (void) printf("'\n");

}

static int

do_test (void)

{

  static char shortstr[] = "Hi, Z.";

  static char longstr[] = "Good morning, Doctor Chandra.  This is Hal.  \

I am ready for my first lesson today.";

  int result = 0;

  fmtchk("%.4x");

  fmtchk("%04x");

  fmtchk("%4.4x");

  fmtchk("%04.4x");

  fmtchk("%4.3x");

  fmtchk("%04.3x");

  fmtst1chk("%.*x");

  fmtst1chk("%0*x");

  fmtst2chk("%*.*x");

  fmtst2chk("%0*.*x");

#ifndef	BSD

  printf("bad format:\t\"%b\"\n");

  printf("nil pointer (padded):\t\"%10p\"\n", (void *) NULL);

#endif

  printf("decimal negative:\t\"%d\"\n", -2345);

  printf("octal negative:\t\"%o\"\n", -2345);

  printf("hex negative:\t\"%x\"\n", -2345);

  printf("long decimal number:\t\"%ld\"\n", -123456L);

  printf("long octal negative:\t\"%lo\"\n", -2345L);

  printf("long unsigned decimal number:\t\"%lu\"\n", -123456L);

  printf("zero-padded LDN:\t\"%010ld\"\n", -123456L);

  printf("left-adjusted ZLDN:\t\"%-010ld\"\n", -123456L);

  printf("space-padded LDN:\t\"%10ld\"\n", -123456L);

  printf("left-adjusted SLDN:\t\"%-10ld\"\n", -123456L);

  printf("zero-padded string:\t\"%010s\"\n", shortstr);

  printf("left-adjusted Z string:\t\"%-010s\"\n", shortstr);

  printf("space-padded string:\t\"%10s\"\n", shortstr);

  printf("left-adjusted S string:\t\"%-10s\"\n", shortstr);

  printf("null string:\t\"%s\"\n", (char *)NULL);

  printf("limited string:\t\"%.22s\"\n", longstr);

  printf("a-style max:\t\"%a\"\n", DBL_MAX);

  printf("a-style -max:\t\"%a\"\n", -DBL_MAX);

  printf("e-style >= 1:\t\"%e\"\n", 12.34);

  printf("e-style >= .1:\t\"%e\"\n", 0.1234);

  printf("e-style < .1:\t\"%e\"\n", 0.001234);

  printf("e-style big:\t\"%.60e\"\n", 1e20);

  printf ("e-style == .1:\t\"%e\"\n", 0.1);

  printf("f-style >= 1:\t\"%f\"\n", 12.34);

  printf("f-style >= .1:\t\"%f\"\n", 0.1234);

  printf("f-style < .1:\t\"%f\"\n", 0.001234);

  printf("g-style >= 1:\t\"%g\"\n", 12.34);

  printf("g-style >= .1:\t\"%g\"\n", 0.1234);

  printf("g-style < .1:\t\"%g\"\n", 0.001234);

  printf("g-style big:\t\"%.60g\"\n", 1e20);

  printf (" %6.5f\n", .099999999860301614);

  printf (" %6.5f\n", .1);

  printf ("x%5.4fx\n", .5);

  printf ("%#03x\n", 1);

  printf ("something really insane: %.10000f\n", 1.0);

  {

    double d = FLT_MIN;

    int niter = 17;

    while (niter-- != 0)

      printf ("%.17e\n", d / 2);

    fflush (stdout);

  }

  printf ("%15.5e\n", 4.9406564584124654e-324);

#define FORMAT "|%12.4f|%12.4e|%12.4g|\n"

  printf (FORMAT, 0.0, 0.0, 0.0);

  printf (FORMAT, 1.0, 1.0, 1.0);

  printf (FORMAT, -1.0, -1.0, -1.0);

  printf (FORMAT, 100.0, 100.0, 100.0);

  printf (FORMAT, 1000.0, 1000.0, 1000.0);

  printf (FORMAT, 10000.0, 10000.0, 10000.0);

  printf (FORMAT, 12345.0, 12345.0, 12345.0);

  printf (FORMAT, 100000.0, 100000.0, 100000.0);

  printf (FORMAT, 123456.0, 123456.0, 123456.0);

#undef	FORMAT

  {

    char buf[20];

    char buf2[512];

    printf ("snprintf (\"%%30s\", \"foo\") == %d, \"%.*s\"\n",

	    snprintf (buf, sizeof (buf), "%30s", "foo"), (int) sizeof (buf),

	    buf);

    printf ("snprintf (\"%%.999999u\", 10) == %d\n",

	    snprintf(buf2, sizeof(buf2), "%.999999u", 10));

  }

  printf("%.8f\n", DBL_MAX);

  printf("%.8f\n", -DBL_MAX);

  printf ("%e should be 1.234568e+06\n", 1234567.8);

  printf ("%f should be 1234567.800000\n", 1234567.8);

  printf ("%g should be 1.23457e+06\n", 1234567.8);

  printf ("%g should be 123.456\n", 123.456);

  printf ("%g should be 1e+06\n", 1000000.0);

  printf ("%g should be 10\n", 10.0);

  printf ("%g should be 0.02\n", 0.02);

#if 0

  /* This test rather checks the way the compiler handles constant

     folding.  gcc behavior wrt to this changed in 3.2 so it is not a

     portable test.  */

  {

    double x=1.0;

    printf("%.17f\n",(1.0/x/10.0+1.0)*x-x);

  }

#endif

  {

    char buf[200];

    sprintf(buf,"%*s%*s%*s",-1,"one",-20,"two",-30,"three");

    result |= strcmp (buf,

		      "onetwo                 three                         ");

    puts (result != 0 ? "Test failed!" : "Test ok.");

  }

  {

    char buf[200];

    sprintf (buf, "%07Lo", 040000000000ll);

    printf ("sprintf (buf, \"%%07Lo\", 040000000000ll) = %s", buf);

    if (strcmp (buf, "40000000000") != 0)

      {

	result = 1;

	fputs ("\tFAILED", stdout);

      }

    puts ("");

  }

  printf ("printf (\"%%hhu\", %u) = %hhu\n", UCHAR_MAX + 2, UCHAR_MAX + 2);

  printf ("printf (\"%%hu\", %u) = %hu\n", USHRT_MAX + 2, USHRT_MAX + 2);

  printf ("printf (\"%%hhi\", %i) = %hhi\n", UCHAR_MAX + 2, UCHAR_MAX + 2);

  printf ("printf (\"%%hi\", %i) = %hi\n", USHRT_MAX + 2, USHRT_MAX + 2);

  printf ("printf (\"%%1$hhu\", %2$u) = %1$hhu\n",

	  UCHAR_MAX + 2, UCHAR_MAX + 2);

  printf ("printf (\"%%1$hu\", %2$u) = %1$hu\n", USHRT_MAX + 2, USHRT_MAX + 2);

  printf ("printf (\"%%1$hhi\", %2$i) = %1$hhi\n",

	  UCHAR_MAX + 2, UCHAR_MAX + 2);

  printf ("printf (\"%%1$hi\", %2$i) = %1$hi\n", USHRT_MAX + 2, USHRT_MAX + 2);

  puts ("--- Should be no further output. ---");

  rfg1 ();

  rfg2 ();

  rfg3 ();

  {

    char bytes[7];

    char buf[20];

    memset (bytes, '\xff', sizeof bytes);

    sprintf (buf, "foo%hhn\n", &bytes[3]);

    if (bytes[0] != '\xff' || bytes[1] != '\xff' || bytes[2] != '\xff'

	|| bytes[4] != '\xff' || bytes[5] != '\xff' || bytes[6] != '\xff')

      {

	puts ("%hhn overwrite more bytes");

	result = 1;

      }

    if (bytes[3] != 3)

      {

	puts ("%hhn wrote incorrect value");

	result = 1;

      }

  }

  return result != 0;

}

static void

rfg1 (void)

{

  char buf[100];

  sprintf (buf, "%5.s", "xyz");

  if (strcmp (buf, "     ") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "     ");

  sprintf (buf, "%5.f", 33.3);

  if (strcmp (buf, "   33") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "   33");

  sprintf (buf, "%8.e", 33.3e7);

  if (strcmp (buf, "   3e+08") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "   3e+08");

  sprintf (buf, "%8.E", 33.3e7);

  if (strcmp (buf, "   3E+08") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "   3E+08");

  sprintf (buf, "%.g", 33.3);

  if (strcmp (buf, "3e+01") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "3e+01");

  sprintf (buf, "%.G", 33.3);

  if (strcmp (buf, "3E+01") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "3E+01");

}

static void

rfg2 (void)

{

  int prec;

  char buf[100];

  prec = 0;

  sprintf (buf, "%.*g", prec, 3.3);

  if (strcmp (buf, "3") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "3");

  prec = 0;

  sprintf (buf, "%.*G", prec, 3.3);

  if (strcmp (buf, "3") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "3");

  prec = 0;

  sprintf (buf, "%7.*G", prec, 3.33);

  if (strcmp (buf, "      3") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "      3");

  prec = 3;

  sprintf (buf, "%04.*o", prec, 33);

  if (strcmp (buf, " 041") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, " 041");

  prec = 7;

  sprintf (buf, "%09.*u", prec, 33);

  if (strcmp (buf, "  0000033") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, "  0000033");

  prec = 3;

  sprintf (buf, "%04.*x", prec, 33);

  if (strcmp (buf, " 021") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, " 021");

  prec = 3;

  sprintf (buf, "%04.*X", prec, 33);

  if (strcmp (buf, " 021") != 0)

    printf ("got: '%s', expected: '%s'\n", buf, " 021");

}

static void

rfg3 (void)

{

  char buf[100];

  double g = 5.0000001;

  unsigned long l = 1234567890;

  double d = 321.7654321;

  const char s[] = "test-string";

  int i = 12345;

  int h = 1234;

  sprintf (buf,

	   "%1$*5$d %2$*6$hi %3$*7$lo %4$*8$f %9$*12$e %10$*13$g %11$*14$s",

	   i, h, l, d, 8, 5, 14, 14, d, g, s, 14, 3, 14);

  if (strcmp (buf,

	      "   12345  1234    11145401322     321.765432   3.217654e+02   5    test-string") != 0)

    printf ("got: '%s', expected: '%s'\n", buf,

	    "   12345  1234    11145401322     321.765432   3.217654e+02   5    test-string");

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"