mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 05:50:14 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
346 lines
9.8 KiB
C
346 lines
9.8 KiB
C
/* Copyright (C) 1991-2021 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
|
||
<https://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);
|
||
/* GCC 9 warns about the NULL format argument; this is deliberately
|
||
tested here. */
|
||
DIAG_PUSH_NEEDS_COMMENT;
|
||
#if __GNUC_PREREQ (7, 0)
|
||
DIAG_IGNORE_NEEDS_COMMENT (9, "-Wformat-overflow=");
|
||
#endif
|
||
printf("null string:\t\"%s\"\n", (char *)NULL);
|
||
DIAG_POP_NEEDS_COMMENT;
|
||
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"
|