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6e4bc45 Jul 29, 2015
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Considering Portability

Know Your Types

Most portability issues that generate warnings are because we are not careful about our types. Standard library and arrays are indexed with size_t. Standard container sizes are reported in size_t. If you get the handling of size_t wrong, you can create subtle lurking 64-bit issues that arise only after you start to overflow the indexing of 32-bit integers. char vs unsigned char.

http://www.viva64.com/en/a/0010/

Other Concerns

Most of the other concerns in this document ultimately come back to portability issues. Avoid statics is particularly of note.