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https://github.com/openvswitch/ovs
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3f636c7e22
./configure accepts --enable-ndebug option. Make ovs_assert() honor it, and make sure all test programs disable it. The order of include files in test programs is also made uniform: 1. #include <config.h> 2. #undef NDEBUG 3. Include file of the test subject (to make sure it itself has sufficient include directives). 4. System includes in alphapetical order. 5. OVS includes in aplhapetical order. Suggested-by: Ben Pfaff <blp@nicira.com> Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com> Acked-by: Ben Pfaff <blp@nicira.com>
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/*
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* Copyright (c) 2008, 2009, 2010, 2014 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <config.h>
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#undef NDEBUG
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#include "random.h"
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#include <stdio.h>
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#include <string.h>
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#include "ovstest.h"
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static void
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test_random_main(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
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{
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enum { N_ROUNDS = 10000 };
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unsigned long long int total;
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int hist16[8][16];
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int hist2[32];
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int i;
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random_set_seed(1);
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total = 0;
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memset(hist2, 0, sizeof hist2);
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memset(hist16, 0, sizeof hist16);
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for (i = 0; i < N_ROUNDS; i++) {
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uint32_t x;
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int j;
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x = random_uint32();
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total += x;
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for (j = 0; j < 32; j++) {
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if (x & (1u << j)) {
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hist2[j]++;
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}
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}
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for (j = 0; j < 8; j++) {
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hist16[j][(x >> (j * 4)) & 15]++;
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}
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}
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printf("average=%08llx\n", total / N_ROUNDS);
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printf("\nbit 0 1\n");
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for (i = 0; i < 32; i++) {
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printf("%3d %5d %5d\n", i, N_ROUNDS - hist2[i], hist2[i]);
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}
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printf("(expected values are %d)\n", N_ROUNDS / 2);
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printf("\nnibble 0 1 2 3 4 5 6 7 8 9 10 11 12 "
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"13 14 15\n");
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for (i = 0; i < 8; i++) {
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int j;
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printf("%6d", i);
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for (j = 0; j < 16; j++) {
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printf(" %3d", hist16[i][j]);
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}
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printf("\n");
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}
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printf("(expected values are %d)\n", N_ROUNDS / 16);
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}
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OVSTEST_REGISTER("test-random", test_random_main);
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