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Diffstat (limited to 'REORG.TODO/stdlib/testrand.c')
-rw-r--r-- | REORG.TODO/stdlib/testrand.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/REORG.TODO/stdlib/testrand.c b/REORG.TODO/stdlib/testrand.c new file mode 100644 index 0000000000..fdfc4e5694 --- /dev/null +++ b/REORG.TODO/stdlib/testrand.c @@ -0,0 +1,52 @@ +/* Copyright (C) 1992-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <stdlib.h> +#include <stdio.h> + +int +main (void) +{ + int i1, i2; + int j1, j2; + + /* The C standard says that "If rand is called before any calls to + srand have been made, the same sequence shall be generated as + when srand is first called with a seed value of 1." */ + i1 = rand(); + i2 = rand(); + srand (1); + j1 = rand(); + j2 = rand(); + if (i1 < 0 || i2 < 0 || j1 < 0 || j2 < 0) { + puts ("Test FAILED!"); + } + if (j1 == i1 && j2 == i2) + { + puts ("Test succeeded."); + return 0; + } + else + { + if (j1 != i1) + printf ("%d != %d\n", j1, i1); + if (j2 != i2) + printf ("%d != %d\n", j2, i2); + puts ("Test FAILED!"); + return 1; + } +} |