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opnsense-src/tools/regression/lib/libc/stdio/test-printfloat.c
David Schultz 8b9f0f2a42 Make sure we set the locale to "C" when testing thousands' separator 
support, rather than just "", which refers to the system default based
on the environment.
2007-12-03 17:48:55 +00:00

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/*-
* Copyright (c) 2002, 2005 David Schultz <das@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Test for printf() floating point formats.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <assert.h>
#include <err.h>
#include <fenv.h>
#include <float.h>
#include <locale.h>
#include <math.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#define testfmt(result, fmt, ...) \
_testfmt((result), __LINE__, #__VA_ARGS__, fmt, __VA_ARGS__)
void _testfmt(const char *, int, const char *, const char *, ...);
void smash_stack(void);
int
main(int argc, char *argv[])
{
printf("1..11\n");
assert(setlocale(LC_NUMERIC, "C"));
/*
* Basic tests of decimal output functionality.
*/
testfmt(" 1.000000E+00", "%13E", 1.0);
testfmt(" 1.000000", "%13f", 1.0);
testfmt(" 1", "%13G", 1.0);
testfmt(" 1.000000E+00", "%13LE", 1.0L);
testfmt(" 1.000000", "%13Lf", 1.0L);
testfmt(" 1", "%13LG", 1.0L);
testfmt("2.718282", "%.*f", -2, 2.7182818);
testfmt("1.234568e+06", "%e", 1234567.8);
testfmt("1234567.800000", "%f", 1234567.8);
testfmt("1.23457E+06", "%G", 1234567.8);
testfmt("1.234568e+06", "%Le", 1234567.8L);
testfmt("1234567.800000", "%Lf", 1234567.8L);
testfmt("1.23457E+06", "%LG", 1234567.8L);
#if (LDBL_MANT_DIG > DBL_MANT_DIG) && !defined(__i386__)
testfmt("123456789.864210", "%Lf", 123456789.8642097531L);
testfmt("-1.23457E+08", "%LG", -123456789.8642097531L);
testfmt("123456789.8642097531", "%.10Lf", 123456789.8642097531L);
testfmt(" 3.141592653589793238e-4000", "%L27.18Le",
3.14159265358979323846e-4000L);
#endif
printf("ok 1 - printfloat\n");
/*
* Infinities and NaNs
*/
testfmt("nan", "%e", NAN);
testfmt("NAN", "%F", NAN);
testfmt("nan", "%g", NAN);
testfmt("NAN", "%LE", (long double)NAN);
testfmt(" nan", "%05e", NAN);
testfmt("INF", "%E", HUGE_VAL);
testfmt("-inf", "%f", -HUGE_VAL);
testfmt("+inf", "%+g", HUGE_VAL);
testfmt(" inf", "%4.2Le", HUGE_VALL);
testfmt("-inf", "%Lf", -HUGE_VALL);
testfmt(" inf", "%05e", HUGE_VAL);
testfmt(" -inf", "%05e", -HUGE_VAL);
printf("ok 2 - printfloat\n");
/*
* Padding
*/
testfmt("0.000000e+00", "%e", 0.0);
testfmt("0.000000", "%F", (double)0.0);
testfmt("0", "%G", 0.0);
testfmt(" 0", "%3.0Lg", 0.0L);
testfmt(" 0", "%5.0f", 0.001);
printf("ok 3 - printfloat\n");
/*
* Precision specifiers
*/
testfmt("1.0123e+00", "%.4e", 1.0123456789);
testfmt("1.0123", "%.4f", 1.0123456789);
testfmt("1.012", "%.4g", 1.0123456789);
testfmt("1.2346e-02", "%.4e", 0.0123456789);
testfmt("0.0123", "%.4f", 0.0123456789);
testfmt("0.01235", "%.4g", 0.0123456789);
printf("ok 4 - printfloat\n");
/*
* Thousands' separators and other locale fun
*/
testfmt("12345678.0625", "%'.04f", 12345678.0625);
testfmt("0012345678.0625", "%'015.4F", 12345678.0625);
assert(setlocale(LC_NUMERIC, "hi_IN.ISCII-DEV")); /* grouping == 2;3 */
testfmt("123,456,78.0625", "%'.4f", 12345678.0625);
testfmt("00123,456,78.0625", "%'017.4F", 12345678.0625);
testfmt(" 90,00", "%'6.0f", 9000.0);
testfmt("90,00.0", "%'.1f", 9000.0);
assert(setlocale(LC_NUMERIC, "ru_RU.ISO8859-5")); /* decimalpoint==, */
testfmt("3,1415", "%g", 3.1415);
/* thousands=. decimalpoint=, grouping=3;3 */
assert(setlocale(LC_NUMERIC, "el_GR.ISO8859-7")); /* decimalpoint==, */
testfmt("1.234,00", "%'.2f", 1234.00);
testfmt("123.456,789", "%'.3f", 123456.789);
assert(setlocale(LC_NUMERIC, "C"));
testfmt("12345678.062500", "%'f", 12345678.0625);
testfmt("9000.000000", "%'f", 9000.0);
printf("ok 5 - printfloat\n");
/*
* Signed conversions
*/
testfmt("+2.500000e-01", "%+e", 0.25);
testfmt("+0.000000", "%+F", 0.0);
testfmt("-1", "%+g", -1.0);
testfmt("-1.000000e+00", "% e", -1.0);
testfmt("+1.000000", "% +f", 1.0);
testfmt(" 1", "% g", 1.0);
testfmt(" 0", "% g", 0.0);
printf("ok 6 - printfloat\n");
/*
* ``Alternate form''
*/
testfmt("1.250e+00", "%#.3e", 1.25);
testfmt("123.000000", "%#f", 123.0);
testfmt(" 12345.", "%#7.5g", 12345.0);
testfmt(" 1.00000", "%#8g", 1.0);
testfmt("0.0", "%#.2g", 0.0);
printf("ok 7 - printfloat\n");
/*
* Padding and decimal point placement
*/
testfmt("03.2E+00", "%08.1E", 3.25);
testfmt("003.25", "%06.2F", 3.25);
testfmt("0003.25", "%07.4G", 3.25);
testfmt("3.14159e-05", "%g", 3.14159e-5);
testfmt("0.000314159", "%g", 3.14159e-4);
testfmt("3.14159e+06", "%g", 3.14159e6);
testfmt("314159", "%g", 3.14159e5);
testfmt("314159.", "%#g", 3.14159e5);
testfmt(" 9.000000e+03", "%13e", 9000.0);
testfmt(" 9000.000000", "%12f", 9000.0);
testfmt(" 9000", "%5g", 9000.0);
testfmt(" 900000.", "%#8g", 900000.0);
testfmt(" 9e+06", "%6g", 9000000.0);
testfmt(" 9.000000e-04", "%13e", 0.0009);
testfmt(" 0.000900", "%9f", 0.0009);
testfmt(" 0.0009", "%7g", 0.0009);
testfmt(" 9e-05", "%6g", 0.00009);
testfmt(" 9.00000e-05", "%#12g", 0.00009);
testfmt(" 9.e-05", "%#7.1g", 0.00009);
testfmt(" 0.0", "%4.1f", 0.0);
testfmt("90.0", "%4.1f", 90.0);
testfmt(" 100", "%4.0f", 100.0);
testfmt("9.0e+01", "%4.1e", 90.0);
testfmt("1e+02", "%4.0e", 100.0);
printf("ok 8 - printfloat\n");
/*
* Decimal rounding
*/
fesetround(FE_DOWNWARD);
testfmt("4.437", "%.3f", 4.4375);
testfmt("-4.438", "%.3f", -4.4375);
testfmt("4.437", "%.3Lf", 4.4375L);
testfmt("-4.438", "%.3Lf", -4.4375L);
fesetround(FE_UPWARD);
testfmt("4.438", "%.3f", 4.4375);
testfmt("-4.437", "%.3f", -4.4375);
testfmt("4.438", "%.3Lf", 4.4375L);
testfmt("-4.437", "%.3Lf", -4.4375L);
fesetround(FE_TOWARDZERO);
testfmt("4.437", "%.3f", 4.4375);
testfmt("-4.437", "%.3f", -4.4375);
testfmt("4.437", "%.3Lf", 4.4375L);
testfmt("-4.437", "%.3Lf", -4.4375L);
fesetround(FE_TONEAREST);
testfmt("4.438", "%.3f", 4.4375);
testfmt("-4.438", "%.3f", -4.4375);
testfmt("4.438", "%.3Lf", 4.4375L);
testfmt("-4.438", "%.3Lf", -4.4375L);
printf("ok 9 - printfloat\n");
/*
* Hexadecimal floating point (%a, %A) tests. Some of these
* are only valid if the implementation converts to hex digits
* on nibble boundaries.
*/
testfmt("0x0p+0", "%a", 0x0.0p0);
testfmt("0X0.P+0", "%#LA", 0x0.0p0L);
testfmt("inf", "%La", (long double)INFINITY);
testfmt("+INF", "%+A", INFINITY);
testfmt("nan", "%La", (long double)NAN);
testfmt("NAN", "%A", NAN);
testfmt(" 0x1.23p+0", "%10a", 0x1.23p0);
testfmt(" 0x1.23p-500", "%12a", 0x1.23p-500);
testfmt(" 0x1.2p+40", "%10.1a", 0x1.23p40);
testfmt(" 0X1.230000000000000000000000P-4", "%32.24A", 0x1.23p-4);
testfmt("0x1p-1074", "%a", 0x1p-1074);
testfmt("0x1.2345p-1024", "%a", 0x1.2345p-1024);
#if (LDBL_MANT_DIG == 64) && !defined(__i386__)
testfmt("0xc.90fdaa22168c234p-2", "%La", 0x3.243f6a8885a308dp0L);
testfmt("0x8p-16448", "%La", 0x1p-16445L);
testfmt("0x9.8765p-16384", "%La", 0x9.8765p-16384L);
#elif (LDBL_MANT_DIG == 113)
testfmt("0x1.921fb54442d18469898cc51701b8p+1", "%La",
0x3.243f6a8885a308d313198a2e037p0L);
testfmt("0x1p-16494", "%La", 0x1p-16494L);
testfmt("0x1.2345p-16384", "%La", 0x1.2345p-16384L);
#else
testfmt("0xc.90fdaa22168cp-2", "%La", 0x3.243f6a8885a31p0L);
testfmt("0x8p-1077", "%La", 0x1p-1074L);
testfmt("0x9.8765p-1024", "%La", 0x9.8765p-1024L);
#endif
printf("ok 10 - printfloat\n");
/*
* Hexadecimal rounding
*/
fesetround(FE_TOWARDZERO);
testfmt("0X1.23456789ABCP+0", "%.11A", 0x1.23456789abcdep0);
testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0);
testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0);
testfmt("0x1.234567p+0", "%.6a", 0x1.23456789abcdep0);
testfmt("-0x1.234566p+0", "%.6a", -0x1.23456689abcdep0);
fesetround(FE_DOWNWARD);
testfmt("0X1.23456789ABCP+0", "%.11A", 0x1.23456789abcdep0);
testfmt("-0x1.23457p+0", "%.5a", -0x1.23456789abcdep0);
testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0);
testfmt("0x1.234567p+0", "%.6a", 0x1.23456789abcdep0);
testfmt("-0x1.234567p+0", "%.6a", -0x1.23456689abcdep0);
fesetround(FE_UPWARD);
testfmt("0X1.23456789ABDP+0", "%.11A", 0x1.23456789abcdep0);
testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0);
testfmt("0x1.23457p+0", "%.5a", 0x1.23456789abcdep0);
testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0);
testfmt("-0x1.234566p+0", "%.6a", -0x1.23456689abcdep0);
fesetround(FE_TONEAREST);
testfmt("0x1.23456789abcdep+4", "%a", 0x1.23456789abcdep4);
testfmt("0X1.23456789ABDP+0", "%.11A", 0x1.23456789abcdep0);
testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0);
testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0);
testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0);
testfmt("-0x1.234567p+0", "%.6a", -0x1.23456689abcdep0);
testfmt("0x2.00p-1030", "%.2a", 0x1.fffp-1030);
testfmt("0x2.00p-1027", "%.2a", 0xf.fffp-1030);
testfmt("0x1.83p+0", "%.2a", 1.51);
printf("ok 11 - printfloat\n");
return (0);
}
void
smash_stack(void)
{
static uint32_t junk = 0xdeadbeef;
uint32_t buf[512];
int i;
for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++)
buf[i] = junk;
}
void
_testfmt(const char *result, int line, const char *argstr, const char *fmt,...)
{
char s[100];
va_list ap;
va_start(ap, fmt);
smash_stack();
vsnprintf(s, sizeof(s), fmt, ap);
if (strcmp(result, s) != 0) {
fprintf(stderr,
"%d: printf(\"%s\", %s) ==> [%s], expected [%s]\n",
line, fmt, argstr, s, result);
abort();
}
}
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