diff options
author | Gael Guennebaud <g.gael@free.fr> | 2014-01-07 20:23:35 +0100 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2014-01-07 20:23:35 +0100 |
commit | 92190a1cafc3a8613e1200cd4ed81dbc509a93bd (patch) | |
tree | 43084ae6898fa9bd36e5d71363cc8dcdf8ca0a6c /doc/special_examples | |
parent | ac409f51f185a4654f9a5c38ab5d1652824836f6 (diff) |
Add an example showing how to use C++11 random distributions
Diffstat (limited to 'doc/special_examples')
-rw-r--r-- | doc/special_examples/CMakeLists.txt | 19 | ||||
-rw-r--r-- | doc/special_examples/random_cpp11.cpp | 14 |
2 files changed, 33 insertions, 0 deletions
diff --git a/doc/special_examples/CMakeLists.txt b/doc/special_examples/CMakeLists.txt index 0c9b3c3ba..45e2339e3 100644 --- a/doc/special_examples/CMakeLists.txt +++ b/doc/special_examples/CMakeLists.txt @@ -19,3 +19,22 @@ if(QT4_FOUND) add_dependencies(all_examples Tutorial_sparse_example) endif(QT4_FOUND) + +check_cxx_compiler_flag("-std=c++11" EIGEN_COMPILER_SUPPORT_CPP11) +if(EIGEN_COMPILER_SUPPORT_CPP11) + add_executable(random_cpp11 random_cpp11.cpp) + target_link_libraries(random_cpp11 ${EIGEN_STANDARD_LIBRARIES_TO_LINK_TO}) + add_dependencies(all_examples random_cpp11) + ei_add_target_property(random_cpp11 COMPILE_FLAGS "-std=c++11") + + get_target_property(random_cpp11_exec + random_cpp11 LOCATION) + add_custom_command( + TARGET random_cpp11 + POST_BUILD + COMMAND ${random_cpp11_exec} + ARGS >${CMAKE_CURRENT_BINARY_DIR}/random_cpp11.out + ) + + +endif()
\ No newline at end of file diff --git a/doc/special_examples/random_cpp11.cpp b/doc/special_examples/random_cpp11.cpp new file mode 100644 index 000000000..ccd7c77d0 --- /dev/null +++ b/doc/special_examples/random_cpp11.cpp @@ -0,0 +1,14 @@ +#include <Eigen/Core> +#include <iostream> +#include <random> + +using namespace Eigen; + +int main() { + std::default_random_engine generator; + std::poisson_distribution<int> distribution(4.1); + auto poisson = [&] (int) {return distribution(generator);}; + + RowVectorXi v = RowVectorXi::NullaryExpr(10, poisson ); + std::cout << v << "\n"; +} |