/* Test of POSIX and GNU compatible vasprintf() and asprintf() functions.
Copyright (C) 2007-2023 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see . */
/* Written by Bruno Haible , 2023. */
#include
#include
#include
#include
#include
#include "macros.h"
static void
test_function (int (*my_asprintf) (char **, const char *, ...))
{
/* Test the support of the 'b' conversion specifier for binary output of
integers. */
{ /* Zero. */
char *result;
int retval =
my_asprintf (&result, "%b %d", 0, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "0 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* A positive number. */
char *result;
int retval =
my_asprintf (&result, "%b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* A large positive number. */
char *result;
int retval =
my_asprintf (&result, "%b %d", 0xFFFFFFFEU, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "11111111111111111111111111111110 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Width. */
char *result;
int retval =
my_asprintf (&result, "%20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, " 11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Width given as argument. */
char *result;
int retval =
my_asprintf (&result, "%*b %d", 20, 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, " 11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Negative width given as argument (cf. FLAG_LEFT below). */
char *result;
int retval =
my_asprintf (&result, "%*b %d", -20, 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Precision. */
char *result;
int retval =
my_asprintf (&result, "%.20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Zero precision and a positive number. */
char *result;
int retval =
my_asprintf (&result, "%.0b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Zero precision and a zero number. */
char *result;
int retval =
my_asprintf (&result, "%.0b %d", 0, 33, 44, 55);
ASSERT (result != NULL);
/* ISO C and POSIX specify that "The result of converting a zero value
with a precision of zero is no characters." */
ASSERT (strcmp (result, " 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Width and precision. */
char *result;
int retval =
my_asprintf (&result, "%25.20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* Padding and precision. */
char *result;
int retval =
my_asprintf (&result, "%025.20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
/* Neither ISO C nor POSIX specify that the '0' flag is ignored when
a width and a precision are both present. But implementations do so. */
ASSERT (strcmp (result, " 00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_LEFT. */
char *result;
int retval =
my_asprintf (&result, "%-20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with zero. */
char *result;
int retval =
my_asprintf (&result, "%#b %d", 0, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "0 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with a positive number. */
char *result;
int retval =
my_asprintf (&result, "%#b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "0b11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with a positive number and width. */
char *result;
int retval =
my_asprintf (&result, "%#20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, " 0b11000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with a positive number and padding. */
char *result;
int retval =
my_asprintf (&result, "%0#20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "0b000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with a positive number and precision. */
char *result;
int retval =
my_asprintf (&result, "%0#.20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, "0b00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with a positive number and width and precision. */
char *result;
int retval =
my_asprintf (&result, "%#25.20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with a positive number and padding and precision. */
char *result;
int retval =
my_asprintf (&result, "%0#25.20b %d", 12345, 33, 44, 55);
ASSERT (result != NULL);
/* Neither ISO C nor POSIX specify that the '0' flag is ignored when
a width and a precision are both present. But implementations do so. */
ASSERT (strcmp (result, " 0b00000011000000111001 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
{ /* FLAG_ALT with a zero precision and a zero number. */
char *result;
int retval =
my_asprintf (&result, "%#.0b %d", 0, 33, 44, 55);
ASSERT (result != NULL);
/* ISO C and POSIX specify that "The result of converting a zero value
with a precision of zero is no characters.", and the prefix is added
only for non-zero values. */
ASSERT (strcmp (result, " 33") == 0);
ASSERT (retval == strlen (result));
free (result);
}
}
static int
my_asprintf (char **result, const char *format, ...)
{
va_list args;
int ret;
va_start (args, format);
ret = vasprintf (result, format, args);
va_end (args);
return ret;
}
static void
test_vasprintf ()
{
test_function (my_asprintf);
}
static void
test_asprintf ()
{
test_function (asprintf);
}
int
main (int argc, char *argv[])
{
test_vasprintf ();
test_asprintf ();
return 0;
}