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Multiplication needs to be 64bit, to handle overflow regardless of the bittedness of the machine, fixes #771#

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wiredfool 2014-07-05 14:30:34 -07:00
parent 80d6137c86
commit d06072ff46
1 changed files with 1 additions and 1 deletions
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libImaging/Storage.c
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@ -379,7 +379,7 @@ ImagingNew(const char* mode, int xsize, int ysize)
} else } else
bytes = strlen(mode); /* close enough */ bytes = strlen(mode); /* close enough */
if ((Py_ssize_t) xsize * ysize * bytes <= THRESHOLD) { if ((int64_t) xsize * (int64_t) ysize * bytes <= THRESHOLD) {
im = ImagingNewBlock(mode, xsize, ysize); im = ImagingNewBlock(mode, xsize, ysize);
if (im) if (im)
return im; return im;