Remove unnecessary pointer checks before delete calls. Thx @Markus Elfring for reporting.

Feature requests Ticket #149 (https://sourceforge.net/p/irrlicht/feature-requests/149/)


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@5173 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CDepthBuffer.cpp

@@ -30,7 +30,6 @@ CDepthBuffer::CDepthBuffer(const core::dimension2d<u32>& size)
 //! destructor
 CDepthBuffer::~CDepthBuffer()
 {
-	if (Buffer)
 	delete [] Buffer;
 }
 

source/Irrlicht/CImageLoaderJPG.cpp

@@ -177,8 +177,6 @@ IImage* CImageLoaderJPG::loadImage(io::IReadFile* file) const
 		jpeg_destroy_decompress(&cinfo);
 
 		delete [] input;
-		// if the row pointer was created, we delete it.
-		if (rowPtr)
 		delete [] rowPtr;
 
 		// return null pointer

source/Irrlicht/CImageLoaderPNG.cpp

@@ -133,7 +133,6 @@ IImage* CImageLoaderPng::loadImage(io::IReadFile* file) const
 	if (setjmp(png_jmpbuf(png_ptr)))
 	{
 		png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
-		if (RowPointers)
 		delete [] RowPointers;
 		return 0;
 	}

source/Irrlicht/CMD2MeshFileLoader.cpp

@@ -161,7 +161,6 @@ bool CMD2MeshFileLoader::loadFile(io::IReadFile* file, CAnimatedMeshMD2* mesh)
 	mesh->FrameTransforms.set_used(header.numFrames);
 
 	// create vertex arrays for each keyframe
-	if (mesh->FrameList)
 	delete [] mesh->FrameList;
 	mesh->FrameList = new core::array<CAnimatedMeshMD2::SMD2Vert>[header.numFrames];