import unordered_map

example.cpp

@@ -2,6 +2,7 @@
 #include <soi>
 
 signed main() {
+  dbg();
   dbg("hi");
   string s="world";
   dbg(s);
@@ -18,5 +19,4 @@ signed main() {
   dbg(map<int, string>{{3,"three"},{1,"one"}});
   dbg(unordered_map<int, string>{{3,"three"},{1,"one"}});
   dbg(unordered_set<int>{3,1,4});
-  dbg();
 }

include/bits/include-all.hpp

@@ -28,6 +28,7 @@
 #include <tuple>
 #include <type_traits>
 #include <unordered_set>
+#include <unordered_map>
 #include <utility>
 #include <valarray>
 #include <vector>

include/bits/soi-dbg.hpp

@@ -19,8 +19,8 @@
 
 #ifdef __GNUG__
 #include <cstdlib>
-#include <memory>
 #include <cxxabi.h>
+#include <memory>
 #endif
 
 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
@@ -36,25 +36,21 @@ namespace detail {
 // ----------------------------------------------------------------------------
 // pretty printing the type name
 
-
+struct string_view {
-struct string_view
-{
   char const *data;
   std::size_t size;
 };
 
-template<class T>
+template <class T> string_view get_name() {
-constexpr string_view get_name()
-{
   char const *p = __PRETTY_FUNCTION__;
-    while (*p++ != '=');
+  while (*p++ != '=')
-    for (; *p == ' '; ++p);
+    ;
+  for (; *p == ' '; ++p)
+    ;
   char const *p2 = p;
   int count = 1;
-    for (;;++p2)
+  for (;; ++p2) {
-    {
+    switch (*p2) {
-        switch (*p2)
-        {
     case '[':
       ++count;
       break;
@@ -67,11 +63,13 @@ constexpr string_view get_name()
   return {};
 }
 
-std::string replace_all(std::string str, const std::string& from, const std::string& to) {
+std::string replace_all(std::string str, const std::string &from,
+                        const std::string &to) {
   size_t start_pos = 0;
   while ((start_pos = str.find(from, start_pos)) != std::string::npos) {
     str.replace(start_pos, from.length(), to);
-        start_pos += to.length(); // Handles case where 'to' is a substring of 'from'
+    start_pos +=
+        to.length(); // Handles case where 'to' is a substring of 'from'
   }
   return str;
 }
@@ -198,16 +196,36 @@ template <typename T> T &&identity(T &&t) { return std::forward<T>(t); }
 #define dbg(...) dbg_macro::identity(__VA_ARGS__)
 #else
 
-#define SOI_ARG16(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, ...) _15
+#if defined(__clang__)
-#define SOI_IS_NONEMPTY(...) SOI_ARG16(1, ##__VA_ARGS__, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)
+
+#define SOI_ARG16(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13,  \
+                  _14, _15, ...)                                               \
+  _15
+#define SOI_IS_NONEMPTY(...)                                                   \
+  SOI_ARG16(1, ##__VA_ARGS__, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0)
 
 #define SOI_DBG_IMPL_0()                                                       \
   soi::detail::dbg_print_status(__FILE__, __LINE__, __func__)
+
 #define SOI_DBG_IMPL_1(...)                                                    \
-  soi::detail::dbg_print((__VA_ARGS__),                                 \
+  soi::detail::dbg_print(                                                      \
+      (__VA_ARGS__),                                                           \
       soi::detail::sanitized_type_name<decltype(__VA_ARGS__)>(), __FILE__,     \
       __LINE__, __func__, #__VA_ARGS__)
 
+#else
+
+#define SOI_IS_NONEMPTY(...) __VA_OPT__(HAS)
+
+#define SOI_DBG_IMPL_()                                                        \
+  soi::detail::dbg_print_status(__FILE__, __LINE__, __func__)
+#define SOI_DBG_IMPL_HAS(...)                                                  \
+  soi::detail::dbg_print(                                                      \
+      (__VA_ARGS__),                                                           \
+      soi::detail::sanitized_type_name<decltype(__VA_ARGS__)>(), __FILE__,     \
+      __LINE__, __func__, #__VA_ARGS__)
+
+#endif
 
 #define SOI_CAT(a, ...) PRIMITIVE_CAT(a, __VA_ARGS__)
 #define SOI_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
@@ -215,8 +233,7 @@ template <typename T> T &&identity(T &&t) { return std::forward<T>(t); }
 #define SOI_DBG_IMPL(is_nonempty, ...)                                         \
   SOI_PRIMITIVE_CAT(SOI_DBG_IMPL_, is_nonempty)(__VA_ARGS__)
 
-#define dbg(...)                                                       \
+#define dbg(...) SOI_DBG_IMPL(SOI_IS_NONEMPTY(__VA_ARGS__), __VA_ARGS__)
-  SOI_DBG_IMPL(SOI_IS_NONEMPTY(__VA_ARGS__), __VA_ARGS__)
 #endif
 
 #endif // SOI_DBG