New macro

HenryAWE · Jan 12, 2024 · db61733 · db61733
1 parent ec24bf4
commit db61733
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/example/info.cpp b/example/info.cpp
@@ -20,6 +20,10 @@ int main()
     println("PAPILIO_HAS_MULTIDIMENSIONAL_SUBSCRIPT = {:d}L", PAPILIO_HAS_MULTIDIMENSIONAL_SUBSCRIPT);
 #endif
 
+#ifdef PAPILIO_HAS_VA_OPT
+    println("PAPILIO_HAS_VA_OPT = {:d}L", PAPILIO_HAS_VA_OPT);
+#endif
+
     println();
 
     println("Script test:");

diff --git a/include/papilio/macros.hpp b/include/papilio/macros.hpp
@@ -24,13 +24,21 @@
 #    define PAPILIO_COMPILER_GCC __GNUC__
 #endif
 
+#define PAPILIO_ASSERT(expr) assert(expr)
+
 #if defined(_WIN32) || defined(_WIN64)
 #    define PAPILIO_PLATFORM_WINDOWS 1
 #elif defined(__linux__) || defined(__gnu_linux__)
 #    define PAPILIO_PLATFORM_LINUX 1
 #endif
 
-#define PAPILIO_ASSERT(expr) assert(expr)
+#define PAPILIO_HAS_VA_OPT_HELPER(_0, _1, result, ...) result
+#define PAPILIO_HAS_VA_OPT_IMPL(...) \
+    PAPILIO_HAS_VA_OPT_HELPER(__VA_OPT__(, ), 1, 0)
+
+#if PAPILIO_HAS_VA_OPT_IMPL(_0) == 1
+#    define PAPILIO_HAS_VA_OPT 1
+#endif
 
 #ifdef __cplusplus // C compatibility
 #    define PAPILIO_NS ::papilio::