Regression tests for printf()'s floating point formats.
Tests for correct printing of subnormals are lacking.
This commit is contained in:
David Schultz
parent
ebbad5ec5c
commit
600276e186
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# $FreeBSD$
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# $FreeBSD$
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TESTS= test-perror
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TESTS= test-perror test-printfloat
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.PHONY: tests
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.PHONY: tests
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tests: ${TESTS}
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tests: ${TESTS}
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167
tools/regression/lib/libc/stdio/test-printfloat.c
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167
tools/regression/lib/libc/stdio/test-printfloat.c
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/*-
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* Copyright (c) 2002 David Schultz <das@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Test for printf() floating point formats.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <assert.h>
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#include <err.h>
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#include <float.h>
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#include <locale.h>
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#include <math.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#define testfmt(result, fmt, ...) \
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_testfmt((result), __LINE__, #__VA_ARGS__, fmt, __VA_ARGS__)
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void _testfmt(const char *, int, const char *, const char *, ...);
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void smash_stack(void);
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int
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main(int argc, char *argv[])
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{
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assert(setlocale(LC_NUMERIC, ""));
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testfmt(" 1.000000E+00", "%13E", 1.0);
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testfmt(" 1.000000", "%13f", 1.0);
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testfmt(" 1", "%13G", 1.0);
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testfmt(" 1.000000E+00", "%13LE", 1.0L);
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testfmt(" 1.000000", "%13Lf", 1.0L);
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testfmt(" 1", "%13LG", 1.0L);
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testfmt("1.234568e+06", "%e", 1234567.8);
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testfmt("1234567.800000", "%f", 1234567.8);
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testfmt("1.23457E+06", "%G", 1234567.8);
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testfmt("1.234568e+06", "%Le", 1234567.8L);
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testfmt("1234567.800000", "%Lf", 1234567.8L);
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testfmt("1.23457E+06", "%LG", 1234567.8L);
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#if LDBL_MANT_DIG > DBL_MANT_DIG
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testfmt("123456789.864210", "%Lf", 123456789.8642097531L);
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testfmt("-1.23457E+08", "%LG", -123456789.8642097531L);
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testfmt("123456789.8642097531", "%.10Lf", 123456789.8642097531L);
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testfmt(" 3.141592653589793238e-4000", "%L27.18Le",
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3.14159265358979323846e-4000L);
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#endif
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testfmt("nan", "%e", NAN);
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testfmt("NAN", "%F", NAN);
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testfmt("nan", "%g", NAN);
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testfmt("NAN", "%LE", (long double)NAN);
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testfmt("INF", "%E", HUGE_VAL);
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testfmt("-inf", "%f", -HUGE_VAL);
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testfmt("+inf", "%+g", HUGE_VAL);
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testfmt(" inf", "%4.2Le", HUGE_VALL);
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testfmt("-inf", "%Lf", -HUGE_VALL);
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testfmt("0.000000e+00", "%e", 0.0);
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testfmt("0.000000", "%F", (double)0.0);
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testfmt("0", "%G", 0.0);
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testfmt(" 0", "%3.0Lg", 0.0L);
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testfmt("1.0123e+00", "%.4e", 1.0123456789);
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testfmt("1.0123", "%.4f", 1.0123456789);
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testfmt("1.012", "%.4g", 1.0123456789);
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testfmt("1.2346e-02", "%.4e", 0.0123456789);
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testfmt("0.0123", "%.4f", 0.0123456789);
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testfmt("0.01235", "%.4g", 0.0123456789);
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testfmt("12345678.0625", "%'.04f", 12345678.0625);
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testfmt("0012345678.0625", "%'015.4F", 12345678.0625);
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assert(setlocale(LC_NUMERIC, "hi_IN.ISCII-DEV")); /* grouping == 2;3 */
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testfmt("123,456,78.0625", "%'.4f", 12345678.0625);
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testfmt("00123,456,78.0625", "%'017.4F", 12345678.0625);
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assert(setlocale(LC_NUMERIC, "ru_RU.ISO8859-5")); /* decimalpoint==, */
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testfmt("3,1415", "%g", 3.1415);
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assert(setlocale(LC_NUMERIC, ""));
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testfmt("+2.500000e-01", "%+e", 0.25);
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testfmt("+0.000000", "%+F", 0.0);
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testfmt("-1", "%+g", -1.0);
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testfmt("-1.000000e+00", "% e", -1.0);
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testfmt("+1.000000", "% +f", 1.0);
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testfmt(" 1", "% g", 1.0);
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testfmt(" 0", "% g", 0.0);
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testfmt("1.250e+00", "%#.3e", 1.25);
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testfmt("123.000000", "%#f", 123.0);
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testfmt(" 12345.", "%#7.5g", 12345.0);
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testfmt(" 1.00000", "%#8g", 1.0);
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testfmt("0.0", "%#.2g", 0.0);
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testfmt("03.2E+00", "%08.1E", 3.25);
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testfmt("003.25", "%06.2F", 3.25);
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testfmt("0003.25", "%07.4G", 3.25);
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testfmt("3.14159e-05", "%g", 3.14159e-5);
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testfmt("0.000314159", "%g", 3.14159e-4);
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testfmt("3.14159e+06", "%g", 3.14159e6);
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testfmt("314159", "%g", 3.14159e5);
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testfmt("314159.", "%#g", 3.14159e5);
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printf("PASS printfloat\n");
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return (0);
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}
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void
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smash_stack(void)
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{
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static uint32_t junk = 0xdeadbeef;
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uint32_t buf[512];
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int i;
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for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++)
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buf[i] = junk;
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}
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void
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_testfmt(const char *result, int line, const char *argstr, const char *fmt,...)
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{
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char s[100];
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va_list ap;
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va_start(ap, fmt);
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smash_stack();
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vsnprintf(s, sizeof(s), fmt, ap);
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if (strcmp(result, s) != 0) {
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fprintf(stderr,
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"%d: printf(\"%s\", %s) ==> [%s], expected [%s]\n",
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line, fmt, argstr, s, result);
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abort();
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}
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}
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