diff options
Diffstat (limited to 'stdlib/tst-rand48.c')
| -rw-r--r-- | stdlib/tst-rand48.c | 390 |
1 files changed, 390 insertions, 0 deletions
diff --git a/stdlib/tst-rand48.c b/stdlib/tst-rand48.c new file mode 100644 index 0000000000..fd2c4c1955 --- /dev/null +++ b/stdlib/tst-rand48.c @@ -0,0 +1,390 @@ +#include <float.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#ifndef DECIMAL_DIG +# define DECIMAL_DIG 21 +#endif + + +int +main (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 != 0xa28c1003l) + { + printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", + __LINE__ - 4, 0xa28c1003l, 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 != 0x9e88f474l) + { + printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", + __LINE__ - 4, 0x9e88f474l, 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 != 0xeb7a1fa3l) + { + printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", + __LINE__ - 4, 0xeb7a1fa3l, 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 != 0xa28c1003l) + { + printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", + __LINE__ - 4, 0xa28c1003l, 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 != 0x9e88f474l) + { + printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", + __LINE__ - 4, 0x9e88f474l, 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 != 0xeb7a1fa3l) + { + printf ("mrand48() in line %d failed: expected %lx, seen %lx\n", + __LINE__ - 4, 0xeb7a1fa3l, 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 != 0xf568c7a0l) + { + printf ("jrand48() in line %d failed: expected %lx, seen %lx\n", + __LINE__ - 4, 0xf568c7a0l, 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; +} |