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- Split the printfloat test into 11 individually wrapped and packaged
tests. (Buy 10, get one free!) The separate categories were already there; they just weren't labeled. - Use fesetround() instead of fpsetround(), since the former is standard and implemented on all supported architectures. Add tests for each rounding mode. - Add additional tests for subnormals. Some of these tests won't pass until problems in vendor sources (gdtoa and gcc) are fixed and new versions imported, but I want to get these changes into the tree before I accidentally blow them away.
This commit is contained in:
David Schultz
parent
8a7572e0e7
commit
73961b3d51
2 changed files with 100 additions and 8 deletions
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@ -1,6 +1,7 @@
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# $FreeBSD$
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TESTS= test-perror test-printfloat test-scanfloat
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CFLAGS+= -lm
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.PHONY: tests
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tests: ${TESTS}
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@ -1,5 +1,5 @@
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/*-
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* Copyright (c) 2002 David Schultz <das@FreeBSD.org>
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* Copyright (c) 2002, 2005 David Schultz <das@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -33,8 +33,8 @@ __FBSDID("$FreeBSD$");
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#include <assert.h>
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#include <err.h>
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#include <fenv.h>
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#include <float.h>
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#include <ieeefp.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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@ -52,9 +52,12 @@ int
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main(int argc, char *argv[])
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{
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printf("1..1\n");
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printf("1..11\n");
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assert(setlocale(LC_NUMERIC, ""));
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/*
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* Basic tests of decimal output functionality.
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*/
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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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@ -79,6 +82,11 @@ main(int argc, char *argv[])
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3.14159265358979323846e-4000L);
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#endif
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printf("ok 1 - printfloat\n");
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/*
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* Infinities and NaNs
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*/
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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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@ -90,20 +98,32 @@ main(int argc, char *argv[])
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testfmt(" inf", "%4.2Le", HUGE_VALL);
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testfmt("-inf", "%Lf", -HUGE_VALL);
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printf("ok 2 - printfloat\n");
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/*
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* Padding
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*/
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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(" 0", "%5.0f", 0.001);
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printf("ok 3 - printfloat\n");
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/*
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* Precision specifiers
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*/
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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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printf("ok 4 - printfloat\n");
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/*
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* Thousands' separators and other locale fun
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*/
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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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@ -125,6 +145,11 @@ main(int argc, char *argv[])
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testfmt("12345678.062500", "%'f", 12345678.0625);
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testfmt("9000.000000", "%'f", 9000.0);
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printf("ok 5 - printfloat\n");
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/*
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* Signed conversions
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*/
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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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@ -134,12 +159,21 @@ main(int argc, char *argv[])
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testfmt(" 1", "% g", 1.0);
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testfmt(" 0", "% g", 0.0);
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printf("ok 6 - printfloat\n");
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/*
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* ``Alternate form''
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*/
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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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printf("ok 7 - printfloat\n");
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/*
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* Padding and decimal point placement
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*/
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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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@ -168,12 +202,34 @@ main(int argc, char *argv[])
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testfmt("9.0e+01", "%4.1e", 90.0);
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testfmt("1e+02", "%4.0e", 100.0);
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printf("ok 8 - printfloat\n");
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/*
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* Decimal rounding
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*/
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fesetround(FE_DOWNWARD);
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testfmt("4.437", "%.3f", 4.4375);
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testfmt("-4.438", "%.3f", -4.4375);
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fesetround(FE_UPWARD);
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testfmt("4.438", "%.3f", 4.4375);
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testfmt("-4.437", "%.3f", -4.4375);
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fesetround(FE_TOWARDZERO);
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testfmt("4.437", "%.3f", 4.4375);
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testfmt("-4.437", "%.3f", -4.4375);
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fesetround(FE_TONEAREST);
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testfmt("4.438", "%.3f", 4.4375);
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testfmt("-4.438", "%.3f", -4.4375);
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printf("ok 9 - printfloat\n");
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/*
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* Hexadecimal floating point (%a, %A) tests. Some of these
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* are only valid if the implementation converts to hex digits
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* on nibble boundaries.
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*/
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testfmt("0x0p+0", "%a", 0x0.0p0);
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testfmt("0X0.P+0", "%#LA", 0x0.0p0L);
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testfmt("inf", "%La", (long double)INFINITY);
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@ -185,26 +241,61 @@ main(int argc, char *argv[])
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testfmt(" 0x1.23p-500", "%12a", 0x1.23p-500);
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testfmt(" 0x1.2p+40", "%10.1a", 0x1.23p40);
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testfmt(" 0X1.230000000000000000000000P-4", "%32.24A", 0x1.23p-4);
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testfmt("0x1p-1074", "%a", 0x1p-1074);
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testfmt("0x1.2345p-1024", "%a", 0x1.2345p-1024);
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#if (LDBL_MANT_DIG == 64) && !defined(__i386__)
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testfmt("0xc.90fdaa22168c234p-2", "%La", 0x3.243f6a8885a308dp0L);
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testfmt("0x8p-16448", "%La", 0x1p-16445L);
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testfmt("0x9.8765p-16384", "%La", 0x9.8765p-16384L);
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#elif (LDBL_MANT_DIG == 113)
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testfmt("0x1.921fb54442d18469898cc51701b8p+1", "%La",
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0x3.243f6a8885a308d313198a2e037p0L);
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testfmt("0x1p-16494", "%La", 0x1p-16494L);
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testfmt("0x1.2345p-16384", "%La", 0x1.2345p-16384L);
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#else
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testfmt("0xc.90fdaa22168cp-2", "%La", 0x3.243f6a8885a31p0L);
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testfmt("0x8p-1077", "%La", 0x1p-1074L);
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testfmt("0x9.8765p-1024", "%La", 0x9.8765p-1024L);
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#endif
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fpsetround(FP_RN);
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printf("ok 10 - printfloat\n");
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/*
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* Hexadecimal rounding
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*/
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fesetround(FE_TOWARDZERO);
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testfmt("0X1.23456789ABCP+0", "%.11A", 0x1.23456789abcdep0);
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testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0);
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testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0);
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testfmt("0x1.234567p+0", "%.6a", 0x1.23456789abcdep0);
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testfmt("-0x1.234566p+0", "%.6a", -0x1.23456689abcdep0);
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fesetround(FE_DOWNWARD);
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testfmt("0X1.23456789ABCP+0", "%.11A", 0x1.23456789abcdep0);
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testfmt("-0x1.23457p+0", "%.5a", -0x1.23456789abcdep0);
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testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0);
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testfmt("0x1.234567p+0", "%.6a", 0x1.23456789abcdep0);
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testfmt("-0x1.234567p+0", "%.6a", -0x1.23456689abcdep0);
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fesetround(FE_UPWARD);
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testfmt("0X1.23456789ABDP+0", "%.11A", 0x1.23456789abcdep0);
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testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0);
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testfmt("0x1.23457p+0", "%.5a", 0x1.23456789abcdep0);
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testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0);
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testfmt("-0x1.234566p+0", "%.6a", -0x1.23456689abcdep0);
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fesetround(FE_TONEAREST);
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testfmt("0x1.23456789abcdep+4", "%a", 0x1.23456789abcdep4);
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testfmt("0X1.23456789ABDP+0", "%.11A", 0x1.23456789abcdep0);
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testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0);
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testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0);
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testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0);
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testfmt("-0x1.234566p+0", "%.6a", -0x1.23456689abcdep0);
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testfmt("0x2.00p-1030", "%.2a", 0x1.fffp-1030);
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testfmt("0x1.00p-1026", "%.2a", 0xf.fffp-1030);
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testfmt("0x2.00p-1027", "%.2a", 0xf.fffp-1030);
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printf("ok 1 - printfloat\n");
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printf("ok 11 - printfloat\n");
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return (0);
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}
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