chore: created new subdirectory for cryptographic ciphers (#1237)

* chore: moved rot13.c to cipher directory

* chore: added CMakeLists.txt for /cipher

* chore: added /cipher to root CMakeLists.txt

CMakeLists.txt

@@ -64,6 +64,7 @@ add_subdirectory(machine_learning)
 add_subdirectory(process_scheduling_algorithms)
 add_subdirectory(numerical_methods)
 add_subdirectory(math)
+add_subdirectory(cipher)
 
 ## Configure Doxygen documentation system
 cmake_policy(SET CMP0054 NEW)

cipher/CMakeLists.txt

@@ -0,0 +1,18 @@
+# If necessary, use the RELATIVE flag, otherwise each source file may be listed
+# with full pathname. The RELATIVE flag makes it easier to extract an executable's name
+# automatically.
+
+file( GLOB APP_SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.c )
+foreach( testsourcefile ${APP_SOURCES} )
+    string( REPLACE ".c" "" testname ${testsourcefile} ) # File type. Example: `.c`
+    add_executable( ${testname} ${testsourcefile} )
+
+    if(OpenMP_C_FOUND)
+        target_link_libraries(${testname} OpenMP::OpenMP_C)
+    endif()
+    if(MATH_LIBRARY)
+        target_link_libraries(${testname} ${MATH_LIBRARY})
+    endif()
+    install(TARGETS ${testname} DESTINATION "bin/cipher") # Folder name. Do NOT include `<>`
+
+endforeach( testsourcefile ${APP_SOURCES} )