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| author | dx-mon <git@dragonmux.network> | 2021-11-12 10:31:47 -0500 |
|---|---|---|
| committer | dx-mon <git@dragonmux.network> | 2021-11-19 09:39:10 -0500 |
| commit | b3edf81f6c6c8f239cfee6432b82519169c558ea (patch) | |
| tree | f440b93c08d4e38dedb58f8812ab8d447e8b620c | |
| parent | b7207b088539e7b5f34ebbd9f53f9fa14bef6e62 (diff) | |
| download | nextpnr-b3edf81f6c6c8f239cfee6432b82519169c558ea.tar.gz nextpnr-b3edf81f6c6c8f239cfee6432b82519169c558ea.tar.bz2 nextpnr-b3edf81f6c6c8f239cfee6432b82519169c558ea.zip | |
common: Improved the random seed initialisation for the context
| -rw-r--r-- | common/command.cc | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/common/command.cc b/common/command.cc index 38de8344..5a13fb55 100644 --- a/common/command.cc +++ b/common/command.cc @@ -33,6 +33,7 @@ #include <boost/program_options.hpp> #include <fstream> #include <iostream> +#include <random> #include "command.h" #include "design_utils.h" #include "json_frontend.h" @@ -223,12 +224,9 @@ void CommandHandler::setupContext(Context *ctx) } if (vm.count("randomize-seed")) { - srand(time(NULL)); - int r; - do { - r = rand(); - } while (r == 0); - ctx->rngseed(r); + std::random_device randDev{}; + std::uniform_int_distribution<int> distrib{1}; + ctx->rngseed(distrib(randDev)); } if (vm.count("slack_redist_iter")) { |