src: add boost-pfr

src/conf.h

@@ -778,6 +778,34 @@ unsigned membuffer_get_size(MemBuffer &mb);
 //#define DOCTEST_CONFIG_DISABLE 1
 #include <doctest/doctest/parts/doctest_fwd.h>
 
+#if WITH_BOOST_PFR
+#include <boost/pfr/io.hpp>
+template <class A>
+__acc_noinline std::string pfr_str(const A &a) {
+    std::ostringstream ss;
+    ss << boost::pfr::io(a);
+    return ss.str();
+}
+template <class A, class B>
+__acc_noinline std::string pfr_str(const A &a, const B &b) {
+    std::ostringstream ss;
+    ss << boost::pfr::io(a);
+    ss << ' ';
+    ss << boost::pfr::io(b);
+    return ss.str();
+}
+template <class A, class B, class C>
+__acc_noinline std::string pfr_str(const A &a, const B &b, const C &c) {
+    std::ostringstream ss;
+    ss << boost::pfr::io(a);
+    ss << ' ';
+    ss << boost::pfr::io(b);
+    ss << ' ';
+    ss << boost::pfr::io(c);
+    return ss.str();
+}
+#endif // WITH_BOOST_PFR
+
 // util/dt_check.cpp
 void upx_compiler_sanity_check();
 int upx_doctest_check();