More GCC compatibility/warning fixes (#3118)

* Wrap >4-char literals in a MULTI_CHAR macro

Modern compilers do not support CW's non-standard behavior with
>4 char literals. We can, however, use a constexpr function to
compute the u64 values directly. This leaves <=4 char literals
unchanged.

* Replace non-pointer usages of NULL with 0

* Define NULL to nullptr on C++11 and above

* Fix more -Wpointer-arith and -Woverflow warnings

* Replace u32/s32 with uintptr_t/intptr_t where appropriate

* JSUOutputStream: Overload all standard int types

include/JSystem/J2DGraph/J2DAnimation.h

@@ -59,7 +59,7 @@ public:
     J2DAnmVtxColor() {
         mKind = KIND_VTX_COLOR;
         for (int i = 0; i < ARRAY_SIZE(mAnmTableNum); i++) {
-            mAnmTableNum[i] = NULL;
+            mAnmTableNum[i] = 0;
         }
         for (int i = 0; i < ARRAY_SIZE(mVtxColorIndexData); i++) {
             mVtxColorIndexData[i] = NULL;

include/JSystem/JAudio2/JAISeMgr.h

@@ -15,7 +15,7 @@ struct JASNonCopyable {
     JASNonCopyable() {}
     ~JASNonCopyable() {}
 
-    /* 0x0 */ int field_0x0;
+    /* 0x0 */ void* field_0x0;
 };  // Size: 0x4
 
 /**
@@ -56,7 +56,7 @@ public:
         mParams.init();
         mMaxActiveSe = 0;
         mMaxInactiveSe = 0;
-        field_0x0 = 0;
+        field_0x0 = NULL;
     }
 
     virtual bool isUsingSeqData(const JAISeqDataRegion& seqDataRegion);

include/JSystem/JAudio2/JAISound.h

@@ -5,6 +5,7 @@
 #include "JSystem/JAudio2/JAIAudible.h"
 #include "JSystem/JUtility/JUTAssert.h"
 #include "global.h"
+#include <cstdint>
 
 class JAISound;
 
@@ -134,7 +135,7 @@ struct JAISoundStatus_ {
             u8 flag8 : 1;
         } flags;
     } state;
-    /* 0x4 */ u32 userdata_;
+    /* 0x4 */ uintptr_t userdata_;
 };  // Size: 0x8
 
 /**
@@ -294,8 +295,8 @@ public:
     void setAnimationState(u32 state) {
         status_.state.flags.animationState = state;
     }
-    u32 getUserData() const { return status_.userdata_; }
-    void setUserData(u32 userData) { status_.userdata_ = userData; }
+    uintptr_t getUserData() const { return status_.userdata_; }
+    void setUserData(uintptr_t userData) { status_.userdata_ = userData; }
     JAIAudible* getAudible() { return audible_; }
     bool isHandleAttached() const { return handle_ != NULL; }
     bool hasLifeTime() const { return status_.field_0x1.flags.flag2; }

include/JSystem/JAudio2/JASDSPInterface.h

@@ -112,7 +112,7 @@ namespace JASDsp {
     void invalChannelAll();
     void initBuffer();
     int setFXLine(u8, s16*, JASDsp::FxlineConfig_*);
-    BOOL changeFXLineParam(u8, u8, u32);
+    BOOL changeFXLineParam(u8, u8, uintptr_t);
 
     extern u8 const DSPADPCM_FILTER[64];
     extern u32 const DSPRES_FILTER[320];

include/JSystem/JAudio2/JASResArcLoader.h

@@ -8,10 +8,10 @@ namespace JASResArcLoader {
     size_t getResSize(JKRArchive const*, u16);
     size_t getResMaxSize(JKRArchive const*);
     static void loadResourceCallback(void*);
-    int loadResourceAsync(JKRArchive*, u16, u8*, u32, void (*)(u32, u32), u32);
+    int loadResourceAsync(JKRArchive*, u16, u8*, u32, void (*)(u32, uintptr_t), uintptr_t);
 
     // from pikmin2
-    typedef void (*LoadCallback)(u32, u32);
+    typedef void (*LoadCallback)(u32, uintptr_t);
 
     struct TLoadResInfo {
         inline TLoadResInfo(JKRArchive* archive, u16 id, void* buf, u32 size)
@@ -30,7 +30,7 @@ namespace JASResArcLoader {
         void* mBuffer;          // _08
         u32 mBufferSize;        // _0C
         LoadCallback mCallback; // _10
-        u32 mCallbackArg;       // _14, arg to pass to mCallback along with readResource result
+        uintptr_t mCallbackArg; // _14, arg to pass to mCallback along with readResource result
         OSMessageQueue* mQueue; // _18
     };
 };

include/JSystem/JKernel/JKRHeap.h

@@ -5,6 +5,7 @@
 #include <dolphin/os.h>
 #include "global.h"
 #include <new>
+#include <cstdint>
 
 class JKRHeap;
 typedef void (*JKRErrorHandler)(void*, u32, int);
@@ -66,7 +67,7 @@ public:
     JKRHeap* find(void* ptr) const;
     JKRHeap* findAllHeap(void* ptr) const;
 
-    void dispose_subroutine(u32 start, u32 end);
+    void dispose_subroutine(uintptr_t start, uintptr_t end);
     bool dispose(void* ptr, u32 size);
     void dispose(void* begin, void* end);
     void dispose();

include/JSystem/JStudio/JStudio/fvb-data.h

@@ -14,7 +14,7 @@ extern const char ga4cSignature[4];
 
 const int PARAGRAPH_DATA = 1;
 
-typedef enum TEComposite {
+enum TEComposite {
     /* 0x0 */ COMPOSITE_NONE,
     /* 0x1 */ COMPOSITE_RAW,
     /* 0x2 */ COMPOSITE_IDX,

include/JSystem/JStudio/JStudio/stb.h

@@ -5,6 +5,7 @@
 #include "JSystem/JStudio/JStudio/object-id.h"
 #include "JSystem/JStudio/JStudio/stb-data-parse.h"
 #include <dolphin/os.h>
+#include <cstdint>
 
 namespace JStudio {
 class TObject;
@@ -86,7 +87,7 @@ public:
     const void* getSequence() const { return pSequence; }
     void setSequence_(const void* arg1) { pSequence = arg1; }
     const void* getSequence_offset(s32 i_no) const {
-        int s32Val = (s32)getSequence();
+        intptr_t s32Val = (intptr_t)getSequence();
         return (const void*)(s32Val + i_no);
     }
     const void* getSequence_next() const { return pSequence_next; }

include/JSystem/JSupport/JSUOutputStream.h

@@ -18,30 +18,24 @@ public:
     s32 write(const void*, s32);
 	void write(const char*);
 
-	JSUOutputStream& operator<<(u32 param_0) {
-        write(&param_0, sizeof(u32));
-        return *this;
+#define JSU_OUTPUTSTREAM_OPERATOR(T) \
+    JSUOutputStream& operator<<(T val) { \
+        write(&val, sizeof(T)); \
+        return *this; \
     }
 
-    JSUOutputStream& operator<<(s32 param_0) {
-        write(&param_0, sizeof(s32));
-        return *this;
-    }
+    JSU_OUTPUTSTREAM_OPERATOR(signed char)
+    JSU_OUTPUTSTREAM_OPERATOR(unsigned char)
+    JSU_OUTPUTSTREAM_OPERATOR(signed short)
+    JSU_OUTPUTSTREAM_OPERATOR(unsigned short)
+    JSU_OUTPUTSTREAM_OPERATOR(int)
+    JSU_OUTPUTSTREAM_OPERATOR(unsigned int)
+    JSU_OUTPUTSTREAM_OPERATOR(signed long)
+    JSU_OUTPUTSTREAM_OPERATOR(unsigned long)
+    JSU_OUTPUTSTREAM_OPERATOR(signed long long)
+    JSU_OUTPUTSTREAM_OPERATOR(unsigned long long)
 
-    JSUOutputStream& operator<<(s16 param_0) {
-        write(&param_0, sizeof(s16));
-        return *this;
-    }
-
-    JSUOutputStream& operator<<(u16 param_0) {
-        write(&param_0, sizeof(u16));
-        return *this;
-    }
-
-    JSUOutputStream& operator<<(u8 param_0) {
-        write(&param_0, sizeof(u8));
-        return *this;
-    }
+#undef JSU_OUTPUTSTREAM_OPERATOR
 
     JSUOutputStream& operator<<(const char* param_0) {
         write(param_0);

include/JSystem/JSupport/JSupport.h

@@ -20,7 +20,7 @@ T* JSUConvertOffsetToPtr(const void* ptr, uintptr_t offset) {
 template <typename T>
 T* JSUConvertOffsetToPtr(const void* ptr, const void* offset) {
     T* ret;
-    if (offset == NULL) {
+    if (offset == 0) {
         ret = NULL;
     } else {
         ret = (T*)((intptr_t)ptr + (intptr_t)offset);

include/JSystem/JUtility/JUTXfb.h

@@ -75,7 +75,7 @@ private:
     static JUTXfb* sManager;
 
 private:
-    /* 0x00 */ void* mBuffer[3];
+    /* 0x00 */ u8* mBuffer[3];
     /* 0x0C */ bool mXfbAllocated[3];
     /* 0x10 */ s32 mBufferNum;
     /* 0x14 */ s16 mDrawingXfbIndex;