1/*- 2 * Copyright (c) 2002-2009 David Schultz <das@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27/* 28 * Test for printf() floating point formats. 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: releng/10.3/lib/libc/tests/stdio/printfloat_test.c 292152 2015-12-13 04:29:09Z ngie $"); 33 34#include <err.h> 35#include <fenv.h> 36#include <float.h> 37#include <locale.h> 38#include <math.h> 39#include <stdio.h> 40#include <stdarg.h> 41#include <stdint.h> 42#include <stdlib.h> 43#include <string.h> 44#include <wchar.h> 45 46#include <atf-c.h> 47 48static void 49smash_stack(void) 50{ 51 static uint32_t junk = 0xdeadbeef; 52 uint32_t buf[512]; 53 int i; 54 55 for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++) 56 buf[i] = junk; 57} 58 59#define testfmt(result, fmt, ...) \ 60 _testfmt((result), #__VA_ARGS__, fmt, __VA_ARGS__) 61static void 62_testfmt(const char *result, const char *argstr, const char *fmt,...) 63{ 64#define BUF 100 65 wchar_t ws[BUF], wfmt[BUF], wresult[BUF]; 66 char s[BUF]; 67 va_list ap, ap2; 68 69 va_start(ap, fmt); 70 va_copy(ap2, ap); 71 smash_stack(); 72 vsnprintf(s, sizeof(s), fmt, ap); 73 if (strcmp(result, s) != 0) { 74 atf_tc_fail( 75 "printf(\"%s\", %s) ==> [%s], expected [%s]\n", 76 fmt, argstr, s, result); 77 } 78 79 smash_stack(); 80 mbstowcs(ws, s, BUF - 1); 81 mbstowcs(wfmt, fmt, BUF - 1); 82 mbstowcs(wresult, result, BUF - 1); 83 vswprintf(ws, sizeof(ws) / sizeof(ws[0]), wfmt, ap2); 84 if (wcscmp(wresult, ws) != 0) { 85 atf_tc_fail( 86 "wprintf(\"%ls\", %s) ==> [%ls], expected [%ls]\n", 87 wfmt, argstr, ws, wresult); 88 } 89 va_end(ap); 90 va_end(ap2); 91} 92 93ATF_TC_WITHOUT_HEAD(float_within_limits); 94ATF_TC_BODY(float_within_limits, tc) 95{ 96 97 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 98 99 /* Basic tests of decimal output functionality. */ 100 testfmt(" 1.000000E+00", "%13E", 1.0); 101 testfmt(" 1.000000", "%13f", 1.0); 102 testfmt(" 1", "%13G", 1.0); 103 testfmt(" 1.000000E+00", "%13LE", 1.0L); 104 testfmt(" 1.000000", "%13Lf", 1.0L); 105 testfmt(" 1", "%13LG", 1.0L); 106 107 testfmt("2.718282", "%.*f", -2, 2.7182818); 108 109 testfmt("1.234568e+06", "%e", 1234567.8); 110 testfmt("1234567.800000", "%f", 1234567.8); 111 testfmt("1.23457E+06", "%G", 1234567.8); 112 testfmt("1.234568e+06", "%Le", 1234567.8L); 113 testfmt("1234567.800000", "%Lf", 1234567.8L); 114 testfmt("1.23457E+06", "%LG", 1234567.8L); 115 116#if (LDBL_MANT_DIG > DBL_MANT_DIG) && !defined(__i386__) 117 testfmt("123456789.864210", "%Lf", 123456789.8642097531L); 118 testfmt("-1.23457E+08", "%LG", -123456789.8642097531L); 119 testfmt("123456789.8642097531", "%.10Lf", 123456789.8642097531L); 120 testfmt(" 3.141592653589793238e-4000", "%L27.18Le", 121 3.14159265358979323846e-4000L); 122#endif 123} 124 125ATF_TC_WITHOUT_HEAD(infinities_and_nans); 126ATF_TC_BODY(infinities_and_nans, tc) 127{ 128 129 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 130 131 testfmt("nan", "%e", NAN); 132 testfmt("NAN", "%F", NAN); 133 testfmt("nan", "%g", NAN); 134 testfmt("NAN", "%LE", (long double)NAN); 135 testfmt(" nan", "%05e", NAN); 136 137 testfmt("INF", "%E", HUGE_VAL); 138 testfmt("-inf", "%f", -HUGE_VAL); 139 testfmt("+inf", "%+g", HUGE_VAL); 140 testfmt(" inf", "%4.2Le", HUGE_VALL); 141 testfmt("-inf", "%Lf", -HUGE_VALL); 142 testfmt(" inf", "%05e", HUGE_VAL); 143 testfmt(" -inf", "%05e", -HUGE_VAL); 144} 145 146ATF_TC_WITHOUT_HEAD(padding); 147ATF_TC_BODY(padding, tc) 148{ 149 150 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 151 152 testfmt("0.000000e+00", "%e", 0.0); 153 testfmt("0.000000", "%F", (double)0.0); 154 testfmt("0", "%G", 0.0); 155 testfmt(" 0", "%3.0Lg", 0.0L); 156 testfmt(" 0", "%5.0f", 0.001); 157} 158 159ATF_TC_WITHOUT_HEAD(precision_specifiers); 160ATF_TC_BODY(precision_specifiers, tc) 161{ 162 163 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 164 165 testfmt("1.0123e+00", "%.4e", 1.0123456789); 166 testfmt("1.0123", "%.4f", 1.0123456789); 167 testfmt("1.012", "%.4g", 1.0123456789); 168 testfmt("1.2346e-02", "%.4e", 0.0123456789); 169 testfmt("0.0123", "%.4f", 0.0123456789); 170 testfmt("0.01235", "%.4g", 0.0123456789); 171} 172 173ATF_TC_WITHOUT_HEAD(thousands_separator_and_other_locale_tests); 174ATF_TC_BODY(thousands_separator_and_other_locale_tests, tc) 175{ 176 177 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 178 179 testfmt("12345678.0625", "%'.04f", 12345678.0625); 180 testfmt("0012345678.0625", "%'015.4F", 12345678.0625); 181 182 ATF_REQUIRE(setlocale(LC_NUMERIC, "hi_IN.ISCII-DEV")); /* grouping == 2;3 */ 183 testfmt("123,456,78.0625", "%'.4f", 12345678.0625); 184 testfmt("00123,456,78.0625", "%'017.4F", 12345678.0625); 185 testfmt(" 90,00", "%'6.0f", 9000.0); 186 testfmt("90,00.0", "%'.1f", 9000.0); 187 188 ATF_REQUIRE(setlocale(LC_NUMERIC, "ru_RU.ISO8859-5")); /* decimalpoint==, */ 189 testfmt("3,1415", "%g", 3.1415); 190 191 /* thousands=. decimalpoint=, grouping=3;3 */ 192 ATF_REQUIRE(setlocale(LC_NUMERIC, "el_GR.ISO8859-7")); /* decimalpoint==, */ 193 testfmt("1.234,00", "%'.2f", 1234.00); 194 testfmt("123.456,789", "%'.3f", 123456.789); 195 196 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 197 testfmt("12345678.062500", "%'f", 12345678.0625); 198 testfmt("9000.000000", "%'f", 9000.0); 199} 200 201ATF_TC_WITHOUT_HEAD(signed_conversions); 202ATF_TC_BODY(signed_conversions, tc) 203{ 204 205 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 206 207 testfmt("+2.500000e-01", "%+e", 0.25); 208 testfmt("+0.000000", "%+F", 0.0); 209 testfmt("-1", "%+g", -1.0); 210 211 testfmt("-1.000000e+00", "% e", -1.0); 212 testfmt("+1.000000", "% +f", 1.0); 213 testfmt(" 1", "% g", 1.0); 214 testfmt(" 0", "% g", 0.0); 215} 216 217ATF_TC_WITHOUT_HEAD(alternate_form); 218ATF_TC_BODY(alternate_form, tc) 219{ 220 221 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 222 223 testfmt("1.250e+00", "%#.3e", 1.25); 224 testfmt("123.000000", "%#f", 123.0); 225 testfmt(" 12345.", "%#7.5g", 12345.0); 226 testfmt(" 1.00000", "%#8g", 1.0); 227 testfmt("0.0", "%#.2g", 0.0); 228} 229 230ATF_TC_WITHOUT_HEAD(padding_and_decimal_point_placement); 231ATF_TC_BODY(padding_and_decimal_point_placement, tc) 232{ 233 234 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 235 236 testfmt("03.2E+00", "%08.1E", 3.25); 237 testfmt("003.25", "%06.2F", 3.25); 238 testfmt("0003.25", "%07.4G", 3.25); 239 240 testfmt("3.14159e-05", "%g", 3.14159e-5); 241 testfmt("0.000314159", "%g", 3.14159e-4); 242 testfmt("3.14159e+06", "%g", 3.14159e6); 243 testfmt("314159", "%g", 3.14159e5); 244 testfmt("314159.", "%#g", 3.14159e5); 245 246 testfmt(" 9.000000e+03", "%13e", 9000.0); 247 testfmt(" 9000.000000", "%12f", 9000.0); 248 testfmt(" 9000", "%5g", 9000.0); 249 testfmt(" 900000.", "%#8g", 900000.0); 250 testfmt(" 9e+06", "%6g", 9000000.0); 251 testfmt(" 9.000000e-04", "%13e", 0.0009); 252 testfmt(" 0.000900", "%9f", 0.0009); 253 testfmt(" 0.0009", "%7g", 0.0009); 254 testfmt(" 9e-05", "%6g", 0.00009); 255 testfmt(" 9.00000e-05", "%#12g", 0.00009); 256 testfmt(" 9.e-05", "%#7.1g", 0.00009); 257 258 testfmt(" 0.0", "%4.1f", 0.0); 259 testfmt("90.0", "%4.1f", 90.0); 260 testfmt(" 100", "%4.0f", 100.0); 261 testfmt("9.0e+01", "%4.1e", 90.0); 262 testfmt("1e+02", "%4.0e", 100.0); 263} 264 265ATF_TC_WITHOUT_HEAD(decimal_rounding); 266ATF_TC_BODY(decimal_rounding, tc) 267{ 268 269 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 270 271 fesetround(FE_DOWNWARD); 272 testfmt("4.437", "%.3f", 4.4375); 273 testfmt("-4.438", "%.3f", -4.4375); 274 testfmt("4.437", "%.3Lf", 4.4375L); 275 testfmt("-4.438", "%.3Lf", -4.4375L); 276 277 fesetround(FE_UPWARD); 278 testfmt("4.438", "%.3f", 4.4375); 279 testfmt("-4.437", "%.3f", -4.4375); 280 testfmt("4.438", "%.3Lf", 4.4375L); 281 testfmt("-4.437", "%.3Lf", -4.4375L); 282 283 fesetround(FE_TOWARDZERO); 284 testfmt("4.437", "%.3f", 4.4375); 285 testfmt("-4.437", "%.3f", -4.4375); 286 testfmt("4.437", "%.3Lf", 4.4375L); 287 testfmt("-4.437", "%.3Lf", -4.4375L); 288 289 fesetround(FE_TONEAREST); 290 testfmt("4.438", "%.3f", 4.4375); 291 testfmt("-4.438", "%.3f", -4.4375); 292 testfmt("4.438", "%.3Lf", 4.4375L); 293 testfmt("-4.438", "%.3Lf", -4.4375L); 294} 295 296ATF_TC_WITHOUT_HEAD(hexadecimal_floating_point); 297ATF_TC_BODY(hexadecimal_floating_point, tc) 298{ 299 300 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 301 302 /* 303 * Hexadecimal floating point (%a, %A) tests. Some of these 304 * are only valid if the implementation converts to hex digits 305 * on nibble boundaries. 306 */ 307 testfmt("0x0p+0", "%a", 0x0.0p0); 308 testfmt("0X0.P+0", "%#LA", 0x0.0p0L); 309 testfmt("inf", "%La", (long double)INFINITY); 310 testfmt("+INF", "%+A", INFINITY); 311 testfmt("nan", "%La", (long double)NAN); 312 testfmt("NAN", "%A", NAN); 313 314 testfmt(" 0x1.23p+0", "%10a", 0x1.23p0); 315 testfmt(" 0x1.23p-500", "%12a", 0x1.23p-500); 316 testfmt(" 0x1.2p+40", "%10.1a", 0x1.23p40); 317 testfmt(" 0X1.230000000000000000000000P-4", "%32.24A", 0x1.23p-4); 318 testfmt("0x1p-1074", "%a", 0x1p-1074); 319 testfmt("0x1.2345p-1024", "%a", 0x1.2345p-1024); 320 321#if (LDBL_MANT_DIG == 64) && !defined(__i386__) 322 testfmt("0x1.921fb54442d18468p+1", "%La", 0x3.243f6a8885a308dp0L); 323 testfmt("0x1p-16445", "%La", 0x1p-16445L); 324 testfmt("0x1.30ecap-16381", "%La", 0x9.8765p-16384L); 325#elif (LDBL_MANT_DIG == 113) 326 testfmt("0x1.921fb54442d18469898cc51701b8p+1", "%La", 327 0x3.243f6a8885a308d313198a2e037p0L); 328 testfmt("0x1p-16494", "%La", 0x1p-16494L); 329 testfmt("0x1.2345p-16384", "%La", 0x1.2345p-16384L); 330#else 331 testfmt("0x1.921fb54442d18p+1", "%La", 0x3.243f6a8885a31p0L); 332 testfmt("0x1p-1074", "%La", 0x1p-1074L); 333 testfmt("0x1.30ecap-1021", "%La", 0x9.8765p-1024L); 334#endif 335} 336 337ATF_TC_WITHOUT_HEAD(hexadecimal_rounding); 338ATF_TC_BODY(hexadecimal_rounding, tc) 339{ 340 341 ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); 342 343 fesetround(FE_TOWARDZERO); 344 testfmt("0X1.23456789ABCP+0", "%.11A", 0x1.23456789abcdep0); 345 testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0); 346 testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0); 347 testfmt("0x1.234567p+0", "%.6a", 0x1.23456789abcdep0); 348 testfmt("-0x1.234566p+0", "%.6a", -0x1.23456689abcdep0); 349 350 fesetround(FE_DOWNWARD); 351 testfmt("0X1.23456789ABCP+0", "%.11A", 0x1.23456789abcdep0); 352 testfmt("-0x1.23457p+0", "%.5a", -0x1.23456789abcdep0); 353 testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0); 354 testfmt("0x1.234567p+0", "%.6a", 0x1.23456789abcdep0); 355 testfmt("-0x1.234567p+0", "%.6a", -0x1.23456689abcdep0); 356 357 fesetround(FE_UPWARD); 358 testfmt("0X1.23456789ABDP+0", "%.11A", 0x1.23456789abcdep0); 359 testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0); 360 testfmt("0x1.23457p+0", "%.5a", 0x1.23456789abcdep0); 361 testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0); 362 testfmt("-0x1.234566p+0", "%.6a", -0x1.23456689abcdep0); 363 364 fesetround(FE_TONEAREST); 365 testfmt("0x1.23456789abcdep+4", "%a", 0x1.23456789abcdep4); 366 testfmt("0X1.23456789ABDP+0", "%.11A", 0x1.23456789abcdep0); 367 testfmt("-0x1.23456p+0", "%.5a", -0x1.23456789abcdep0); 368 testfmt("0x1.23456p+0", "%.5a", 0x1.23456789abcdep0); 369 testfmt("0x1.234568p+0", "%.6a", 0x1.23456789abcdep0); 370 testfmt("-0x1.234567p+0", "%.6a", -0x1.23456689abcdep0); 371 testfmt("0x1.00p-1029", "%.2a", 0x1.fffp-1030); 372 testfmt("0x1.00p-1026", "%.2a", 0xf.fffp-1030); 373 testfmt("0x1.83p+0", "%.2a", 1.51); 374} 375 376ATF_TP_ADD_TCS(tp) 377{ 378 379 ATF_TP_ADD_TC(tp, float_within_limits); 380 ATF_TP_ADD_TC(tp, infinities_and_nans); 381 ATF_TP_ADD_TC(tp, padding); 382 ATF_TP_ADD_TC(tp, precision_specifiers); 383 ATF_TP_ADD_TC(tp, thousands_separator_and_other_locale_tests); 384 ATF_TP_ADD_TC(tp, signed_conversions); 385 ATF_TP_ADD_TC(tp, alternate_form); 386 ATF_TP_ADD_TC(tp, padding_and_decimal_point_placement); 387 ATF_TP_ADD_TC(tp, decimal_rounding); 388 ATF_TP_ADD_TC(tp, hexadecimal_floating_point); 389 ATF_TP_ADD_TC(tp, hexadecimal_rounding); 390 391 return (atf_no_error()); 392} 393