Improved boolean definitions (#2485)

src/raudio.c

@@ -247,10 +247,6 @@ typedef struct tagBITMAPINFOHEADER {
     #include "external/dr_flac.h"       // FLAC loading functions
 #endif
 
-#if defined(_MSC_VER)
-    #undef bool
-#endif
-
 //----------------------------------------------------------------------------------
 // Defines and Macros
 //----------------------------------------------------------------------------------

src/raylib.h

@@ -177,10 +177,10 @@
 // Structures Definition
 //----------------------------------------------------------------------------------
 // Boolean type
-#if defined(__STDC__) && __STDC_VERSION__ >= 199901L
+#if (defined(__STDC__) && __STDC_VERSION__ >= 199901L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
     #include <stdbool.h>
 #elif !defined(__cplusplus) && !defined(bool)
-    typedef enum bool { false, true } bool;
+    typedef enum bool { false = 0, true = !false } bool;
     #define RL_BOOL_TYPE
 #endif
 

src/rgestures.h

@@ -62,10 +62,10 @@
 // NOTE: Below types are required for GESTURES_STANDALONE usage
 //----------------------------------------------------------------------------------
 // Boolean type
-#if defined(__STDC__) && __STDC_VERSION__ >= 199901L
+#if (defined(__STDC__) && __STDC_VERSION__ >= 199901L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
     #include <stdbool.h>
 #elif !defined(__cplusplus) && !defined(bool) && !defined(RL_BOOL_TYPE)
-    typedef enum bool { false, true } bool;
+    typedef enum bool { false = 0, true = !false } bool;
 #endif
 
 #if !defined(RL_VECTOR2_TYPE)

src/rlgl.h

@@ -358,11 +358,11 @@ typedef struct rlRenderBatch {
     float currentDepth;         // Current depth value for next draw
 } rlRenderBatch;
 
-#if defined(__STDC__) && __STDC_VERSION__ >= 199901L
+#if (defined(__STDC__) && __STDC_VERSION__ >= 199901L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
     #include <stdbool.h>
 #elif !defined(__cplusplus) && !defined(bool) && !defined(RL_BOOL_TYPE)
     // Boolean type
-    typedef enum bool { false, true } bool;
+typedef enum bool { false = 0, true = !false } bool;
 #endif
 
 #if !defined(RL_MATRIX_TYPE)