diff options
Diffstat (limited to 'math')
| -rw-r--r-- | math/libm-test.inc | 28 | ||||
| -rw-r--r-- | math/math.h | 3 |
2 files changed, 30 insertions, 1 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc index e4fcb5a198..385ec5c053 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -46,7 +46,7 @@ cbrt, ceil, copysign, cos, cosh, drem, erf, erfc, exp, exp10, exp2, expm1, fabs, fdim, finite, floor, fma, fmax, fmin, fmod, fpclassify, frexp, gamma, hypot, - ilogb, isfinite, isinf, isnan, isnormal, issignaling, + ilogb, isfinite, isinf, isnan, isnormal, issignaling, issubnormal, isless, islessequal, isgreater, isgreaterequal, islessgreater, isunordered, j0, j1, jn, ldexp, lgamma, log, log10, log1p, log2, logb, @@ -8587,6 +8587,31 @@ issignaling_test (void) ALL_RM_TEST (issignaling, 1, issignaling_test_data, RUN_TEST_LOOP_f_b_tg, END); } +static const struct test_f_i_data issubnormal_test_data[] = + { + TEST_f_b (issubnormal, 0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, minus_zero, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, 10, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, min_subnorm_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, -min_subnorm_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, min_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, -min_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, max_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, -max_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, plus_infty, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, minus_infty, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, qnan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, -qnan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, snan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_b (issubnormal, -snan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + }; + +static void +issubnormal_test (void) +{ + ALL_RM_TEST (issubnormal, 1, issubnormal_test_data, RUN_TEST_LOOP_f_b_tg, END); +} + static const struct test_ff_i_data isunordered_test_data[] = { TEST_ff_i (isunordered, minus_zero, minus_zero, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), @@ -12668,6 +12693,7 @@ main (int argc, char **argv) isnan_test (); isnormal_test (); issignaling_test (); + issubnormal_test (); signbit_test (); /* Trigonometric functions: */ diff --git a/math/math.h b/math/math.h index 2f77deec87..064cc56e1b 100644 --- a/math/math.h +++ b/math/math.h @@ -328,6 +328,9 @@ enum : sizeof (x) == sizeof (double) \ ? __issignaling (x) : __issignalingl (x)) # endif + +/* Return nonzero value if X is subnormal. */ +# define issubnormal(x) (fpclassify (x) == FP_SUBNORMAL) #endif /* Use IEC_60559_BFP_EXT. */ #ifdef __USE_MISC |