diff options
Diffstat (limited to 'stdlib/tst-strtod-round.c')
| -rw-r--r-- | stdlib/tst-strtod-round.c | 206 |
1 files changed, 7 insertions, 199 deletions
diff --git a/stdlib/tst-strtod-round.c b/stdlib/tst-strtod-round.c index 509f96ac9e..ae5d6f8478 100644 --- a/stdlib/tst-strtod-round.c +++ b/stdlib/tst-strtod-round.c @@ -1,6 +1,5 @@ -/* Test for correct rounding of results of strtod and related - functions. - Copyright (C) 2012-2016 Free Software Foundation, Inc. +/* char shim for tst-strtod-round-skeleton.c. + Copyright (C) 2016 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -17,200 +16,9 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -/* Defining _LIBC_TEST ensures long double math functions are - declared in the headers. */ -#define _LIBC_TEST 1 -#include <fenv.h> -#include <float.h> -#include <math.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <math-tests.h> +#define L_(str) str +#define FNPFX str +#define CHAR char +#define STRM "%s" -#include "tst-strtod.h" - -#define _CONCAT(a, b) a ## b -#define CONCAT(a, b) _CONCAT (a, b) - -#if LDBL_MANT_DIG == 106 && LDBL_MAX_EXP == 1024 -/* This is a stupid hack for IBM long double. This test ignores - inexact values for long double due to the limitations of the - format. This ensures rounding tests are ignored. */ -# undef ROUNDING_TESTS_long_double -# define ROUNDING_TESTS_long_double(x) 0 -#endif - -/* Generator to create an FTYPE member variabled named FSUF - used to populate struct member variables. */ -#define FTYPE_MEMBER(FSUF, FTYPE, FTOSTR, FTOSTRM, LSUF, CSUF) \ - FTYPE FSUF; - -/* Likewise, but each member is of type bool. */ -#define BOOL_MEMBER(FSUF, FTYPE, FTOSTR, FTOSTRM, LSUF, CSUF) \ - bool FSUF; - -#define STRUCT_FOREACH_FLOAT_FTYPE GEN_TEST_STRTOD_FOREACH (FTYPE_MEMBER) -#define STRUCT_FOREACH_FLOAT_BOOL GEN_TEST_STRTOD_FOREACH (BOOL_MEMBER) - -/* Define the long double choose (CHOOSE_ld) macro - to select the appropriate generated long double - value from the generated test data. */ -#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 -/* This is for the long double == double format. */ -# define CHOOSE_ld(f,d,...) d -#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && LDBL_MIN_EXP == -16381 -/* This is for the Intel extended float format. */ -# define CHOOSE_ld(f,d,ld64i,...) ld64i -#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && LDBL_MIN_EXP == -16382 -/* This is for the Motorola extended float format. */ -# define CHOOSE_ld(f,d,ld64i,ld64m,...) ld64m -#elif LDBL_MANT_DIG == 106 && LDBL_MAX_EXP == 1024 -/* This is for the IBM extended double format. */ -# define CHOOSE_ld(f,d,ld64i,ld64m,ld106,...) ld106 -#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 -/* This is for the IEEE binary128 format. */ -# define CHOOSE_ld(f,d,ld64i,ld64m,ld106,ld113,...) ld113 -#else -# error "unknown long double format" -#endif - -/* Add type specific choosing macros below. */ -#define CHOOSE_f(f,...) f -#define CHOOSE_d(f,d,...) d -/* long double is special, and handled above. */ - -/* Selector for expected result field of a given type. */ -#define _ENTRY(FSUF, FTYPE, FTOSTR, FTOSTRM, LSUF, CSUF, ...) \ - CONCAT (CHOOSE_ ## FSUF (__VA_ARGS__), LSUF), -#define ENTRY(...) \ - GEN_TEST_STRTOD_FOREACH (_ENTRY, __VA_ARGS__) - -/* Selector for boolean exact tag of expected results. */ -#define _XNTRY(FSUF, FTYPE, FTOSTR, FTOSTRM, LSUF, CSUF, ...) \ - CHOOSE_ ## FSUF (__VA_ARGS__), -#define XNTRY(...) \ - GEN_TEST_STRTOD_FOREACH (_XNTRY, __VA_ARGS__) - -/* This is hacky way around the seemingly unavoidable macro - expansion of the INFINITY or HUGE_VAL like macros in the - above. It is assumed the compiler will implicitly convert - the infinity correctly. */ -#define INF INFINITY + 0.0 - -/* This macro is used in conjunction with the output from the - gen-tst-strtod-round utility to select the appropriately - rounded long double value for a given format. */ -#define TEST(s, \ - fx, fd, fn, fz, fu, \ - dx, dd, dn, dz, du, \ - ld64ix, ld64id, ld64in, ld64iz, ld64iu, \ - ld64mx, ld64md, ld64mn, ld64mz, ld64mu, \ - ld106x, ld106d, ld106n, ld106z, ld106u, \ - ld113x, ld113d, ld113n, ld113z, ld113u) \ - { \ - s, \ - { XNTRY (fx, dx, ld64ix, ld64mx, ld106x, ld113x) }, \ - { \ - { ENTRY (fn, dn, ld64in, ld64mn, ld106n, ld113n) }, \ - { ENTRY (fd, dd, ld64id, ld64md, ld106d, ld113d) }, \ - { ENTRY (fz, dz, ld64iz, ld64mz, ld106z, ld113z) }, \ - { ENTRY (fu, du, ld64iu, ld64mu, ld106u, ld113u) } \ - } \ - } - -struct test_exactness - { - STRUCT_FOREACH_FLOAT_BOOL - }; - -struct test_results - { - STRUCT_FOREACH_FLOAT_FTYPE - }; - -struct test { - const char *s; - struct test_exactness exact; - struct test_results r[4]; -}; - -/* Include the generated test data. */ -#include "tst-strtod-round-data.h" - -#define GEN_ONE_TEST(FSUF, FTYPE, FTOSTR, FTOSTRM, LSUF, CSUF) \ -{ \ - FTYPE f = strto ## FSUF (s, NULL); \ - if (f != expected->FSUF \ - || (copysign ## CSUF) (1.0 ## LSUF, f) \ - != (copysign ## CSUF) (1.0 ## LSUF, expected->FSUF)) \ - { \ - char efstr[FSTRLENMAX]; \ - char fstr[FSTRLENMAX]; \ - FTOSTR (efstr, FSTRLENMAX, "%" FTOSTRM "a", expected->FSUF); \ - FTOSTR (fstr, FSTRLENMAX, "%" FTOSTRM "a", f); \ - printf ("strto" #FSUF " (%s) returned %s not %s" \ - " (%s)\n", s, fstr, efstr, mode_name); \ - if (ROUNDING_TESTS (FTYPE, rnd_mode) || exact->FSUF) \ - result = 1; \ - else \ - printf ("ignoring this inexact result\n"); \ - } \ -} - -static int -test_in_one_mode (const char *s, const struct test_results *expected, - const struct test_exactness *exact, const char *mode_name, - int rnd_mode) -{ - int result = 0; - GEN_TEST_STRTOD_FOREACH (GEN_ONE_TEST) - return result; -} - -static const struct fetestmodes - { - const char *mode_name; - int rnd_mode; - int rnd_i; /* Corresponding index into r array of struct test. */ - } modes[] = { - { "default rounding mode", FE_TONEAREST, 0 }, -#ifdef FE_DOWNWARD - { "FE_DOWNWARD", FE_DOWNWARD, 1 }, -#endif -#ifdef FE_TOWARDZERO - { "FE_TOWARDZERO", FE_TOWARDZERO, 2 }, -#endif -#ifdef FE_UPWARD - { "FE_UPWARD", FE_UPWARD, 3 }, -#endif - {} -}; - -static int -do_test (void) -{ - int save_round_mode __attribute__ ((unused)) = fegetround (); - int result = 0; - for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); i++) - { - result |= test_in_one_mode (tests[i].s, &tests[i].r[modes[0].rnd_i], - &tests[i].exact, modes[0].mode_name, - modes[0].rnd_mode); - for (const struct fetestmodes *m = &modes[1]; m->mode_name != NULL; m++) - { - if (!fesetround (m->rnd_mode)) - { - result |= test_in_one_mode (tests[i].s, &tests[i].r[m->rnd_i], - &tests[i].exact, m->mode_name, - m->rnd_mode); - fesetround (save_round_mode); - } - } - } - return result; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" +#include <tst-strtod-round-skeleton.c> |