intial commit

source/mijin/detect.hpp

@@ -0,0 +1,78 @@
+
+#pragma once
+
+#if !defined(MIJIN_DETECT_HPP_INCLUDED)
+#define MIJIN_DETECT_HPP_INCLUDED 1
+
+namespace mijin
+{
+
+//
+// public defines
+//
+
+#if !defined(__has_include)
+    #define __has_include(x) (false)
+#endif
+
+#define MIJIN_OS_UNKNOWN 0
+#define MIJIN_OS_LINUX   1
+#define MIJIN_OS_WINDOWS 2
+#define MIJIN_OS_OSX     3
+
+#if !defined(MIJIN_TARGET_OS)
+    #if defined(__linux__)
+        #define MIJIN_TARGET_OS MIJIN_OS_LINUX
+    #elif defined(_WIN32)
+        #define MIJIN_TARGET_OS MIJIN_OS_WINDOWS
+    #else // TODO: macos
+        #define MIJIN_TARGET_OS MIJIN_OS_UNKNOWN
+    #endif
+#endif
+
+#define MIJIN_COMPILER_UNKNOWN 0
+#define MIJIN_COMPILER_GCC     1
+#define MIJIN_COMPILER_CLANG   2
+#define MIJIN_COMPILER_MSVC    3
+
+#if !defined(MIJIN_COMPILER)
+    #if defined(__clang__)
+        #define MIJIN_COMPILER MIJIN_COMPILER_CLANG
+    #elif defined(__GNUC__)
+        #define MIJIN_COMPILER MIJIN_COMPILER_GCC
+    #elif defined(_MSC_VER)
+        #define MIJIN_COMPILER MIJIN_COMPILER_MSVC
+    #else
+        #define MIJIN_COMPILER MIJIN_COMPILER_UNKNOWN
+    #endif
+#endif
+
+#define MIJIN_STDLIB_UNKNOWN 0
+#define MIJIN_STDLIB_GLIBC   1
+
+#if !defined(MIJIN_STDLIB)
+    #if __has_include(<features.h>)
+        #include <features.h>
+    #endif
+    #if defined(__GLIBC__)
+        #define MIJIN_STDLIB MIJIN_STDLIB_GLIBC
+    #else
+        #define MIJIN_STDLIB MIJIN_STDLIB_UNKNOWN
+    #endif
+#endif
+
+//
+// public constants
+//
+
+//
+// public types
+//
+
+//
+// public functions
+//
+
+} // namespace mijin
+
+#endif // !defined(MIJIN_DETECT_HPP_INCLUDED)