From 8830c30355d2a0fa8e26d112b8f44acce44bc5ff Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Thu, 25 Apr 2024 20:51:18 +0300
Subject: [PATCH] Add support for the BOOST_UUID_REPORT_IMPLEMENTATION macro,
 which outputs the chosen .ipp implementation

---
 include/boost/uuid/detail/uuid_generic.ipp |  7 +++++++
 include/boost/uuid/detail/uuid_uint128.ipp |  7 +++++++
 include/boost/uuid/detail/uuid_x86.ipp     | 18 ++++++++++++++++++
 test/CMakeLists.txt                        |  8 ++++----
 test/Jamfile.v2                            | 10 ++++++----
 5 files changed, 42 insertions(+), 8 deletions(-)

diff --git a/include/boost/uuid/detail/uuid_generic.ipp b/include/boost/uuid/detail/uuid_generic.ipp
index 2646cca..2098ce4 100644
--- a/include/boost/uuid/detail/uuid_generic.ipp
+++ b/include/boost/uuid/detail/uuid_generic.ipp
@@ -8,6 +8,13 @@
 #include <boost/uuid/detail/endian.hpp>
 #include <cstdint>
 
+#if defined(BOOST_UUID_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE( "Using uuid_generic.ipp" )
+
+#endif
+
 namespace boost {
 namespace uuids {
 
diff --git a/include/boost/uuid/detail/uuid_uint128.ipp b/include/boost/uuid/detail/uuid_uint128.ipp
index 8d4bc9e..82195e2 100644
--- a/include/boost/uuid/detail/uuid_uint128.ipp
+++ b/include/boost/uuid/detail/uuid_uint128.ipp
@@ -7,6 +7,13 @@
 
 #include <boost/uuid/detail/endian.hpp>
 
+#if defined(BOOST_UUID_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE( "Using uuid_uint128.ipp" )
+
+#endif
+
 namespace boost {
 namespace uuids {
 
diff --git a/include/boost/uuid/detail/uuid_x86.ipp b/include/boost/uuid/detail/uuid_x86.ipp
index 1d5e3d7..be62afa 100644
--- a/include/boost/uuid/detail/uuid_x86.ipp
+++ b/include/boost/uuid/detail/uuid_x86.ipp
@@ -16,6 +16,24 @@
 #include <boost/uuid/detail/endian.hpp>
 #include <cstdint>
 
+#if defined(BOOST_UUID_REPORT_IMPLEMENTATION)
+#include <boost/config/pragma_message.hpp>
+
+#if defined(BOOST_UUID_USE_AVX10_1)
+BOOST_PRAGMA_MESSAGE( "Using uuid_x86.ipp, AVX10.1" )
+
+#elif defined(BOOST_UUID_USE_SSE41)
+BOOST_PRAGMA_MESSAGE( "Using uuid_x86.ipp, SSE4.1" )
+
+#elif defined(BOOST_UUID_USE_SSE3)
+BOOST_PRAGMA_MESSAGE( "Using uuid_x86.ipp, SSE3" )
+
+#else
+BOOST_PRAGMA_MESSAGE( "Using uuid_x86.ipp, SSE2" )
+
+#endif
+#endif // #if defined(BOOST_UUID_REPORT_IMPLEMENTATION)
+
 // MSVC does not always have immintrin.h (at least, not up to MSVC 10), so include the appropriate header for each instruction set
 #if defined(BOOST_UUID_USE_AVX10_1)
 #include <immintrin.h>
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 377f1f9..d4f99d6 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -13,12 +13,12 @@ find_package(Threads REQUIRED)
 
 set(BOOST_TEST_LINK_LIBRARIES Boost::uuid Boost::core)
 
-boost_test(TYPE run SOURCES test_uuid.cpp LINK_LIBRARIES Boost::container_hash)
-boost_test(TYPE run SOURCES test_uuid.cpp LINK_LIBRARIES Boost::container_hash COMPILE_DEFINITIONS BOOST_UUID_NO_SIMD=1 NAME test_uuid_no_simd)
+boost_test(TYPE run SOURCES test_uuid.cpp LINK_LIBRARIES Boost::container_hash COMPILE_DEFINITIONS BOOST_UUID_REPORT_IMPLEMENTATION=1)
+boost_test(TYPE run SOURCES test_uuid.cpp LINK_LIBRARIES Boost::container_hash COMPILE_DEFINITIONS BOOST_UUID_NO_SIMD=1 BOOST_UUID_REPORT_IMPLEMENTATION=1 NAME test_uuid_no_simd)
 boost_test(TYPE run SOURCES test_uuid_2.cpp)
 
-boost_test(TYPE run SOURCES test_comparison.cpp)
-boost_test(TYPE run SOURCES test_comparison.cpp COMPILE_DEFINITIONS BOOST_UUID_NO_SIMD=1 NAME test_comparison_no_simd)
+boost_test(TYPE run SOURCES test_comparison.cpp COMPILE_DEFINITIONS BOOST_UUID_REPORT_IMPLEMENTATION=1)
+boost_test(TYPE run SOURCES test_comparison.cpp COMPILE_DEFINITIONS BOOST_UUID_NO_SIMD=1 BOOST_UUID_REPORT_IMPLEMENTATION=1 NAME test_comparison_no_simd)
 
 boost_test(TYPE run SOURCES test_include1.cpp test_include2.cpp)
 
diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index f4fe389..bfb482e 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -64,14 +64,16 @@ run test_include1.cpp test_include2.cpp ;
 
 # main test
 
-run test_uuid.cpp ;
-run test_uuid.cpp : : : <define>BOOST_UUID_NO_SIMD : test_uuid_no_simd ;
+run test_uuid.cpp
+   : : : <define>BOOST_UUID_REPORT_IMPLEMENTATION ;
+run test_uuid.cpp : : : <define>BOOST_UUID_NO_SIMD <define>BOOST_UUID_REPORT_IMPLEMENTATION : test_uuid_no_simd ;
 run test_uuid_2.cpp ;
 
 # test comparison
 
-run test_comparison.cpp ;
-run test_comparison.cpp : : : <define>BOOST_UUID_NO_SIMD : test_comparison_no_simd ;
+run test_comparison.cpp
+   : : : <define>BOOST_UUID_REPORT_IMPLEMENTATION ;
+run test_comparison.cpp : : : <define>BOOST_UUID_NO_SIMD <define>BOOST_UUID_REPORT_IMPLEMENTATION : test_comparison_no_simd ;
 
 # test uuid_io.hpp