FindGSL: Add module to find the GNU Scientific Library

3 files changed, 47 insertions, 0 deletions

diff --git a/Tests/FindGSL/CMakeLists.txt b/Tests/FindGSL/CMakeLists.txt
new file mode 100644
index 0000000..45a3471
--- /dev/null
+++ b/Tests/FindGSL/CMakeLists.txt
@@ -0,0 +1,9 @@
+add_test(NAME FindGSL.rng COMMAND ${CMAKE_CTEST_COMMAND}
+  --build-and-test
+  "${CMake_SOURCE_DIR}/Tests/FindGSL/rng"
+  "${CMake_BINARY_DIR}/Tests/FindGSL/rng"
+  ${build_generator_args}
+  --build-project FindGSL_rng
+  --build-options ${build_options}
+  --test-command ${CMAKE_CTEST_COMMAND} -V
+  )
diff --git a/Tests/FindGSL/rng/CMakeLists.txt b/Tests/FindGSL/rng/CMakeLists.txt
new file mode 100644
index 0000000..b15d6ac
--- /dev/null
+++ b/Tests/FindGSL/rng/CMakeLists.txt
@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.0)
+project(FindGSL_rng CXX)
+include(CTest)
+
+find_package(GSL REQUIRED)
+
+add_executable(tstgslrng_tgt main.cc)
+target_link_libraries(tstgslrng_tgt GSL::gsl)
+add_test(NAME tstgslrng_tgt COMMAND tstgslrng_tgt)
+
+add_executable(tstgslrng_var main.cc)
+target_link_libraries(tstgslrng_var ${GSL_LIBRARIES})
+target_include_directories(tstgslrng_var PRIVATE ${GSL_INCLUDE_DIRS})
+add_test(NAME tstgslrng_var COMMAND tstgslrng_var)
diff --git a/Tests/FindGSL/rng/main.cc b/Tests/FindGSL/rng/main.cc
new file mode 100644
index 0000000..72543be
--- /dev/null
+++ b/Tests/FindGSL/rng/main.cc
@@ -0,0 +1,24 @@
+#include <math.h>
+#include "gsl/gsl_rng.h"
+
+int main()
+{
+  // return code
+  int retval = 1;
+
+  // create a generator
+  gsl_rng *generator;
+  generator = gsl_rng_alloc(gsl_rng_mt19937);
+
+  // Read a value.
+  double const Result = gsl_rng_uniform(generator);
+
+  // Check value
+  double const expectedResult( 0.999741748906672 );
+  if( fabs( expectedResult - Result ) < 1.0e-6 )
+    retval = 0;
+
+  // free allocated memory
+  gsl_rng_free(generator);
+  return retval;
+}