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Fix cexp overflow (bug 13892).

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This commit is contained in:
Joseph Myers
2012-03-22 19:38:09 +00:00
parent 81b035fe63
commit 7c69cd143b
8 changed files with 181 additions and 27 deletions
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29
math/libm-test.inc
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@@ -1909,6 +1909,35 @@ cexp_test (void)
TEST_c_c (cexp, -10000, 0x1p16383L, 1.045876464564882298442774542991176546722e-4343L, 4.421154026488516836023811173959413420548e-4344L);
#endif
TEST_c_c (cexp, 88.75, 0.75, 2.558360358486542817001900410314204322891e38L, 2.383359453227311447654736314679677655100e38L);
TEST_c_c (cexp, -95, 0.75, 4.039714446238306526889476684000081624047e-42L, 3.763383677300535390271646960780570275931e-42L);
#ifndef TEST_FLOAT
TEST_c_c (cexp, 709.8125, 0.75, 1.355121963080879535248452862759108365762e308L, 1.262426823598609432507811340856186873507e308L);
TEST_c_c (cexp, -720, 0.75, 1.486960657116368433685753325516638551722e-313L, 1.385247284245720590980701226843815229385e-313L);
#endif
#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
TEST_c_c (cexp, 11356.5625, 0.75, 9.052188470850960144814815984311663764287e4931L, 8.432986734191301036267148978260970230200e4931L);
TEST_c_c (cexp, -11370, 0.75, 8.631121063182211587489310508568170739592e-4939L, 8.040721827809267291427062346918413482824e-4939L);
#endif
#ifdef TEST_FLOAT
TEST_c_c (cexp, 180, 0x1p-149, plus_infty, 2.087071793345235105931967606907855310664e33L, OVERFLOW_EXCEPTION);
#endif
#if defined TEST_DOUBLE || (defined TEST_LDOUBLE && LDBL_MAX_EXP == 1024)
TEST_c_c (cexp, 1440, 0x1p-1074, plus_infty, 1.196295853897226111293303155636183216483e302L, OVERFLOW_EXCEPTION);
#endif
#if defined TEST_LDOUBLE && LDBL_MAX_EXP >= 16384
TEST_c_c (cexp, 22730, 0x1p-16434L, plus_infty, 2.435706297811211974162115164702304105374e4924L, OVERFLOW_EXCEPTION);
#endif
TEST_c_c (cexp, 1e6, 0, plus_infty, 0, OVERFLOW_EXCEPTION);
TEST_c_c (cexp, 1e6, min_value, plus_infty, plus_infty, OVERFLOW_EXCEPTION);
TEST_c_c (cexp, 1e6, -min_value, plus_infty, minus_infty, OVERFLOW_EXCEPTION);
END (cexp, complex);
}