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glibc/stdlib/tst-rand48.c
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| #include <float.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #ifndef DECIMAL_DIG | |
| # define DECIMAL_DIG 21 | |
| #endif | |
| static int | |
| do_test (void) | |
| { | |
| unsigned short int xs[3] = { 0x0001, 0x0012, 0x0123 }; | |
| unsigned short int lxs[7]; | |
| unsigned short int *xsp; | |
| int result = 0; | |
| long int l; | |
| double d; | |
| double e; | |
| /* Test srand48. */ | |
| srand48 (0x98765432); | |
| /* Get the values of the internal Xi array. */ | |
| xsp = seed48 (xs); | |
| if (xsp[0] != 0x330e || xsp[1] != 0x5432 || xsp[2] != 0x9876) | |
| { | |
| puts ("srand48(0x98765432) didn't set correct value"); | |
| printf (" expected: { %04hx, %04hx, %04hx }\n", 0x330e, 0x5432, 0x9876); | |
| printf (" seen: { %04hx, %04hx, %04hx }\n", xsp[0], xsp[1], xsp[2]); | |
| result = 1; | |
| } | |
| /* Put the values back. */ | |
| memcpy (xs, xsp, sizeof (xs)); | |
| (void) seed48 (xs); | |
| /* See whether the correct values are installed. */ | |
| l = lrand48 (); | |
| if (l != 0x2fed1413l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x2fed1413l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != -0x5d73effdl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, -0x5d73effdl, l); | |
| result = 1; | |
| } | |
| l = lrand48 (); | |
| if (l != 0x585fcfb7l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x585fcfb7l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != -0x61770b8cl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, -0x61770b8cl, l); | |
| result = 1; | |
| } | |
| /* Test seed48. The previous call should have install the values in | |
| the initialization of `xs' above. */ | |
| xs[0] = 0x1234; | |
| xs[1] = 0x5678; | |
| xs[2] = 0x9012; | |
| xsp = seed48 (xs); | |
| if (xsp[0] != 0x62f2 || xsp[1] != 0xf474 || xsp[2] != 0x9e88) | |
| { | |
| puts ("seed48() did not install the values correctly"); | |
| printf (" expected: { %04hx, %04hx, %04hx }\n", 0x62f2, 0xf474, 0x9e88); | |
| printf (" seen: { %04hx, %04hx, %04hx }\n", xsp[0], xsp[1], xsp[2]); | |
| result = 1; | |
| } | |
| /* Test lrand48 and mrand48. We continue from the seed established | |
| above. */ | |
| l = lrand48 (); | |
| if (l != 0x017e48b5l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x017e48b5l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != -0x1485e05dl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, -0x1485e05dl, l); | |
| result = 1; | |
| } | |
| l = lrand48 (); | |
| if (l != 0x6b6a3f95l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x6b6a3f95l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != 0x175c0d6fl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x175c0d6fl, l); | |
| result = 1; | |
| } | |
| /* Test lcong48. */ | |
| lxs[0] = 0x4567; | |
| lxs[1] = 0x6789; | |
| lxs[2] = 0x8901; | |
| lxs[3] = 0x0123; | |
| lxs[4] = 0x2345; | |
| lxs[5] = 0x1111; | |
| lxs[6] = 0x2222; | |
| lcong48 (lxs); | |
| /* See whether the correct values are installed. */ | |
| l = lrand48 (); | |
| if (l != 0x6df63d66l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x6df63d66l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != 0x2f92c8e1l) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x2f92c8e1l, l); | |
| result = 1; | |
| } | |
| l = lrand48 (); | |
| if (l != 0x3b4869ffl) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x3b4869ffl, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != 0x5cd4cc3el) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x5cd4cc3el, l); | |
| result = 1; | |
| } | |
| /* Check whether srand48() restores the A and C parameters. */ | |
| srand48 (0x98765432); | |
| /* See whether the correct values are installed. */ | |
| l = lrand48 (); | |
| if (l != 0x2fed1413l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x2fed1413l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != -0x5d73effdl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, -0x5d73effdl, l); | |
| result = 1; | |
| } | |
| l = lrand48 (); | |
| if (l != 0x585fcfb7l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x585fcfb7l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != -0x61770b8cl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, -0x61770b8cl, l); | |
| result = 1; | |
| } | |
| /* And again to see whether seed48() does the same. */ | |
| lcong48 (lxs); | |
| /* See whether lxs wasn't modified. */ | |
| l = lrand48 (); | |
| if (l != 0x6df63d66l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x6df63d66l, l); | |
| result = 1; | |
| } | |
| /* Test seed48. The previous call should have install the values in | |
| the initialization of `xs' above. */ | |
| xs[0] = 0x1234; | |
| xs[1] = 0x5678; | |
| xs[2] = 0x9012; | |
| xsp = seed48 (xs); | |
| if (xsp[0] != 0x0637 || xsp[1] != 0x7acd || xsp[2] != 0xdbec) | |
| { | |
| puts ("seed48() did not install the values correctly"); | |
| printf (" expected: { %04hx, %04hx, %04hx }\n", 0x0637, 0x7acd, 0xdbec); | |
| printf (" seen: { %04hx, %04hx, %04hx }\n", xsp[0], xsp[1], xsp[2]); | |
| result = 1; | |
| } | |
| /* Test lrand48 and mrand48. We continue from the seed established | |
| above. */ | |
| l = lrand48 (); | |
| if (l != 0x017e48b5l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x017e48b5l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != -0x1485e05dl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, -0x1485e05dl, l); | |
| result = 1; | |
| } | |
| l = lrand48 (); | |
| if (l != 0x6b6a3f95l) | |
| { | |
| printf ("lrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x6b6a3f95l, l); | |
| result = 1; | |
| } | |
| l = mrand48 (); | |
| if (l != 0x175c0d6fl) | |
| { | |
| printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x175c0d6fl, l); | |
| result = 1; | |
| } | |
| /* Test drand48. */ | |
| d = drand48 (); | |
| if (d != 0.0908832261858485424) | |
| { | |
| printf ("drand48() in line %d failed: expected %.*g, seen %.*g\n", | |
| __LINE__ - 4, DECIMAL_DIG, 0.0908832261858485424, | |
| DECIMAL_DIG, d); | |
| result = 1; | |
| } | |
| d = drand48 (); | |
| if (d != 0.943149381730059133133) | |
| { | |
| printf ("drand48() in line %d failed: expected %.*g, seen %.*g\n", | |
| __LINE__ - 4, DECIMAL_DIG, 0.943149381730059133133, | |
| DECIMAL_DIG, d); | |
| result = 1; | |
| } | |
| /* Now the functions which get the Xis passed. */ | |
| xs[0] = 0x3849; | |
| xs[1] = 0x5061; | |
| xs[2] = 0x7283; | |
| l = nrand48 (xs); | |
| if (l != 0x1efe61a1l) | |
| { | |
| printf ("nrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x1efe61a1l, l); | |
| result = 1; | |
| } | |
| l = jrand48 (xs); | |
| if (l != -0xa973860l) | |
| { | |
| printf ("jrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, -0xa973860l, l); | |
| result = 1; | |
| } | |
| l = nrand48 (xs); | |
| if (l != 0x2a5e57fel) | |
| { | |
| printf ("nrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x2a5e57fel, l); | |
| result = 1; | |
| } | |
| l = jrand48 (xs); | |
| if (l != 0x71a779a8l) | |
| { | |
| printf ("jrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x71a779a8l, l); | |
| result = 1; | |
| } | |
| /* Test whether the global A and C are used. */ | |
| lcong48 (lxs); | |
| l = nrand48 (xs); | |
| if (l != 0x32beee9fl) | |
| { | |
| printf ("nrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x32beee9fl, l); | |
| result = 1; | |
| } | |
| l = jrand48 (xs); | |
| if (l != 0x7bddf3bal) | |
| { | |
| printf ("jrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x7bddf3bal, l); | |
| result = 1; | |
| } | |
| l = nrand48 (xs); | |
| if (l != 0x85bdf28l) | |
| { | |
| printf ("nrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x85bdf28l, l); | |
| result = 1; | |
| } | |
| l = jrand48 (xs); | |
| if (l != 0x7b433e47l) | |
| { | |
| printf ("jrand48() in line %d failed: expected %lx, seen %lx\n", | |
| __LINE__ - 4, 0x7b433e47l, l); | |
| result = 1; | |
| } | |
| /* Test erand48. Also compare with the drand48 results. */ | |
| (void) seed48 (xs); | |
| d = drand48 (); | |
| e = erand48 (xs); | |
| if (d != e) | |
| { | |
| printf ("\ | |
| drand48() and erand48 in lines %d and %d produce different results\n", | |
| __LINE__ - 6, __LINE__ - 5); | |
| printf (" drand48() = %g, erand48() = %g\n", d, e); | |
| result = 1; | |
| } | |
| else if (e != 0.640650904452755298735) | |
| { | |
| printf ("erand48() in line %d failed: expected %.*g, seen %.*g\n", | |
| __LINE__ - 4, DECIMAL_DIG, 0.640650904452755298735, | |
| DECIMAL_DIG, e); | |
| result = 1; | |
| } | |
| d = drand48 (); | |
| e = erand48 (xs); | |
| if (d != e) | |
| { | |
| printf ("\ | |
| drand48() and erand48 in lines %d and %d produce different results\n", | |
| __LINE__ - 6, __LINE__ - 5); | |
| printf (" drand48() = %g, erand48() = %g\n", d, e); | |
| result = 1; | |
| } | |
| else if (e != 0.115372323508150742555) | |
| { | |
| printf ("erand48() in line %d failed: expected %.*g, seen %.*g\n", | |
| __LINE__ - 4, DECIMAL_DIG, 0.0115372323508150742555, | |
| DECIMAL_DIG, e); | |
| result = 1; | |
| } | |
| return result; | |
| } | |
| #define TEST_FUNCTION do_test () | |
| #include "../test-skeleton.c" |