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Care must be taken to make sure that included header filenames are unique. According to C99 \[[ISO/IEC 9899-1999|AA. C References#ISO/IEC 9899-1999]\]: |
The implementation shall provide unique mappings for sequences consisting of one or more nondigits or digits (6.4.2.1) followed by a period (.) and a single nondigit. The first character shall not be a digit. The implementation may ignore distinctions of alphabetical case and restrict the mapping to eight significant characters before the period.
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