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[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc1/] [libgloss/] [testsuite/] [libgloss.all/] [misc.c] - Rev 345
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/* * this file contains misc bug reports from WinBond. */ #include <stdio.h> #include <math.h> #if unix #define pass(x) printf("PASS: %s\n", x); #define fail(x) printf("FAIL: %s\n", x); #endif /* The compare operation is error. Because the constant value 1.0 is not correct. It seems compare with 0 in this statement. HP-UX native: dist is 0.301 PASS: float compare *cp = be9a1cac, *cp1 = be9a1cac PASS: float multiple 1 PASS: float multiple 2 32760 / (-2) = -16380 PASS: float divide 1 32760 / (-1) = -32760 PASS: float divide 1 These test only pass if the output matches: Correct output is 1.0 = 1.000000E+00, 0.3010 = 3.000000E-01, -1.0 = -1.000000E+0 1.0 = 1.000000E+00, 0.3010 = 3.010000E-01, -1.0 = -1.000000E+00 These test only pass if the outut matches: Correct output is ans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00 ans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00 Test run on Oki: dist is 0 PASS: float compare *cp = be9a1cac, *cp1 = be9a1cac PASS: float multiple 1 PASS: float multiple 2 32760 / (-2) = -2147467268 PASS: float divide 1 32760 / (-1) = 32760 PASS: float divide 1 These test only pass if the output matches: Correct output is 1.0 = 1.000000E+00, 0.3010 = 3.000000E-01, -1.0 = -1.000000E+0 1.0 = 1.586860E-318, 0.3010 = -1.009091E-303, -1.0 = 5.290504E-315 These test only pass if the outut matches: Correct output is ans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00 ans = 4.940656E-324, ans1 = -5.299809E-315, ans2 = 5.290504E-315 */ main() { float dist = 0.3010; printf ("dist is %G\n", dist); if ( dist < 1.0 ) { pass ("float compare"); } else { fail ("float compare"); } test_1(); test_2(); test_3(); test_4(); fflush (stdout); } /* * *cp = be9a1cac, *cp1 = 00000000 */ test_1() { float i, ans, ans1; unsigned int *cp=&ans, *cp1=&ans1; i = 0.3010; ans = (-1.0) * 0.3010 * 1.0; /* OK */ ans1 = (-1.0) * i * 1.0; /* Disaster */ printf ("*cp = %08x, *cp1 = %08x\n", *cp, *cp1); if (*cp != 0xbe9a1cac) { fail ("float multiple 1"); } else { pass ("float multiple 1"); } if (*cp1 != 0xbe9a1cac) { fail ("float multiple 2"); } else { pass ("float multiple 2"); } } /* Positive integer divide Negative integer may get interesting result. For examples: EX1: 32760 / (-2) = -2147467268 */ test_2() { int value, i, j; i = 32760; j = -2; value = i / (j); printf ("%d / (%d) = %d\n", i, j, value); if (value != -16380) { fail ("float divide 1"); } else { pass ("float divide 1"); } } /* EX2: 32760 / (-1) = 32760 */ test_3() { int value, i, j; i = 32760; j = -1; value = i / (j); printf ("%d / (%d) = %d\n", i, j, value); if (value != -32760) { fail ("float divide 1"); } else { pass ("float divide 1"); } } /* The data output format %e, %E, %g, %G in printf() can not work. Please test the following example: 1.0 = 1.000000E+00, 0.3010 = 3.009999E-01, -1.0 = -1.000000E+00 ans = 4.940656E-324, ans1 = -5.299809E-315, ans2 = 5.290504E-315 */ test_4() { float ans, ans1, ans2; ans = 1.0; ans1 = 0.3010; ans2 = -1.0; printf ("These test only pass if the output matches:\nCorrect output is\n1.0 = 1.000000E+00, 0.3010 = 3.000000E-01, -1.0 = -1.000000E+0\n"); printf ("1.0 = %E, 0.3010 = %E, -1.0 = %E\n", 1.0, 0.3010, -1.0); printf ("These test only pass if the outut matches:\nCorrect output is\nans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00\n"); printf ("ans = %E, ans1 = %E, ans2 = %E\n", ans, ans1, ans2); }