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* floatformat.c: Include "config.h" and <string.h> if available. (INFINITY, NAN): Define if not defined by <math.h>. (floatformat_to_double): Handle NaN, infinity, and denormalized numbers. (floatformat_from_double): Likewise. (ieee_test): In debugging code, use little endian rather than big endian. Correct tests to handle NaN and to check correct sign of zero. Omit m68k extended test. (main): Add more debugging cases. From-SVN: r74237
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