Method Less

external/as_add_on/scriptarray/scriptarray.cpp:1001–1068

internal

// internal
bool CScriptArray::Less(const void *a, const void *b, bool asc, asIScriptContext *ctx, SArrayCache *cache)
{
	if( !asc )
	{
		// Swap items
		const void *TEMP = a;
		a = b;
		b = TEMP;
	}

	if( !(subTypeId & ~asTYPEID_MASK_SEQNBR) )
	{
		// Simple compare of values
		switch( subTypeId )
		{
			#define COMPARE(T) *((T*)a) < *((T*)b)
			case asTYPEID_BOOL: return COMPARE(bool);
			case asTYPEID_INT8: return COMPARE(signed char);
			case asTYPEID_UINT8: return COMPARE(unsigned char);
			case asTYPEID_INT16: return COMPARE(signed short);
			case asTYPEID_UINT16: return COMPARE(unsigned short);
			case asTYPEID_INT32: return COMPARE(signed int);
			case asTYPEID_UINT32: return COMPARE(unsigned int);
			case asTYPEID_FLOAT: return COMPARE(float);
			case asTYPEID_DOUBLE: return COMPARE(double);
			default: return COMPARE(signed int); // All enums fall in this case
			#undef COMPARE
		}
	}
	else
	{
		int r = 0;

		if( subTypeId & asTYPEID_OBJHANDLE )
		{
			// Allow sort to work even if the array contains null handles
			if( *(void**)a == 0 ) return true;
			if( *(void**)b == 0 ) return false;
		}

		// Execute object opCmp
		if( cache && cache->cmpFunc )
		{
			// TODO: Add proper error handling
			r = ctx->Prepare(cache->cmpFunc); assert(r >= 0);

			if( subTypeId & asTYPEID_OBJHANDLE )
			{
				r = ctx->SetObject(*((void**)a)); assert(r >= 0);
				r = ctx->SetArgObject(0, *((void**)b)); assert(r >= 0);
			}
			else
			{
				r = ctx->SetObject((void*)a); assert(r >= 0);
				r = ctx->SetArgObject(0, (void*)b); assert(r >= 0);
			}

			r = ctx->Execute();