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Use memcpy instead of *(int)*& #115

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Use memcpy instead of *(int)*& #115

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11 changes: 7 additions & 4 deletions beginners-tutorials/tutorial-5-a-textured-cube/index.markdown
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Expand Up @@ -95,11 +95,14 @@ if ( header[0]!='B' || header[1]!='M' ){
Now we can read the size of the image, the location of the data in the file, etc :

``` cpp
// add to standard headers
#include <string.h>

// Read ints from the byte array
dataPos = *(int*)&(header[0x0A]);
imageSize = *(int*)&(header[0x22]);
width = *(int*)&(header[0x12]);
height = *(int*)&(header[0x16]);
memcpy(&dataPos, header + 0xA, sizeof dataPos);
memcpy(&imageSize, header + 0x22, sizeof imageSize);
memcpy(&width, header + 0x12, sizeof width);
memcpy(&height, header + 0x16, sizeof height);
```

We have to make up some info if it's missing :
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