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-rw-r--r--src/vppinfra/test_zvec.c117
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+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ Copyright (c) 2005 Eliot Dresselhaus
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <vppinfra/zvec.h>
+#include <vppinfra/format.h>
+#include <vppinfra/random.h>
+
+static int verbose;
+#define if_verbose(format,args...) \
+ if (verbose) { clib_warning(format, ## args); }
+
+int
+test_zvec_main (unformat_input_t * input)
+{
+ uword n_iterations;
+ uword i;
+ u32 seed;
+
+ n_iterations = 1024;
+ seed = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (0 == unformat (input, "iter %d", &n_iterations)
+ && 0 == unformat (input, "seed %d", &seed))
+ clib_error ("unknown input `%U'", format_unformat_error, input);
+ }
+
+ if_verbose ("%d iterations, seed %d\n", n_iterations, seed);
+
+ for (i = 0; i < n_iterations; i++)
+ {
+ uword coding, data, d[2], limit, n_zdata_bits[2];
+
+ if (seed)
+ coding = random_u32 (&seed);
+ else
+ coding = i;
+
+ limit = coding - 1;
+ if (limit > (1 << 16))
+ limit = 1 << 16;
+ for (data = 0; data <= limit; data++)
+ {
+ d[0] = zvec_encode (coding, data, &n_zdata_bits[0]);
+
+ if (coding != 0)
+ ASSERT ((d[0] >> n_zdata_bits[0]) == 0);
+
+ d[1] = zvec_decode (coding, d[0], &n_zdata_bits[1]);
+ ASSERT (data == d[1]);
+
+ ASSERT (n_zdata_bits[0] == n_zdata_bits[1]);
+ }
+ }
+
+ return 0;
+}
+
+#ifdef CLIB_UNIX
+int
+main (int argc, char *argv[])
+{
+ unformat_input_t i;
+ int ret;
+
+ verbose = (argc > 1);
+ unformat_init_command_line (&i, argv);
+ ret = test_zvec_main (&i);
+ unformat_free (&i);
+
+ return ret;
+}
+#endif /* CLIB_UNIX */
+
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */