First Commit

externals/cryptopp-cmake/test/unit/include-prefix/CMakeLists.txt

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+# ===-----------------------------------------------------------------------===#
+# Distributed under the 3-Clause BSD License. See accompanying file LICENSE or
+# copy at https://opensource.org/licenses/BSD-3-Clause).
+# SPDX-License-Identifier: BSD-3-Clause
+# ===-----------------------------------------------------------------------===#
+
+include(${CPM_cryptopp-cmake_SOURCE}/cmake/cmake_minimum_required.cmake)
+cmake_minimum_required(VERSION ${CRYPTOPP_MINIMUM_CMAKE_VERSION})
+
+# Test project for the standard way of using cryptopp-cmake
+project(CryptoppCmakeIncludePrefixTest)
+
+# ---- Add dependencies via CPM ----
+# see https://github.com/TheLartians/CPM.cmake for more info
+include(${TEST_CMAKE_FILES_DIR}/CPM.cmake)
+
+# ---- Speedup build using ccache (needs CPM) ----
+include(${TEST_CMAKE_FILES_DIR}/FasterBuild.cmake)
+
+cpmaddpackage(
+  NAME
+  cryptopp-cmake
+  GITHUB_REPOSITORY
+  abdes/cryptopp-cmake
+  VERSION
+  ${cryptopp_GIT_BRANCH}
+  OPTIONS
+  "CRYPTOPP_BUILD_TESTING OFF"
+  "CRYPTOPP_INCLUDE_PREFIX crypto++")
+
+# compile and link a test program using crypto++
+add_executable(rng-test main.cpp)
+target_link_libraries(rng-test cryptopp::cryptopp)
+target_compile_features(rng-test PRIVATE cxx_constexpr)

externals/cryptopp-cmake/test/unit/include-prefix/main.cpp

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+//===----------------------------------------------------------------------===//
+// Distributed under the 3-Clause BSD License. See accompanying file LICENSE or
+// copy at https://opensource.org/licenses/BSD-3-Clause).
+// SPDX-License-Identifier: BSD-3-Clause
+//===----------------------------------------------------------------------===//
+
+#include <array>
+#include <cstdint>
+
+#include <crypto++/osrng.h> // for random number generation
+
+int main(int argc, char **argv) {
+  constexpr size_t c_buffer_size = 16;
+  std::array<uint8_t, c_buffer_size> output;
+  CryptoPP::AutoSeededRandomPool rng;
+  rng.GenerateBlock(output.data(), c_buffer_size);
+}