Added handling of overflow and underflow conditions in putflt()
Made exact zero work for 5-byte floating point i/o
Added #undef for getc/putc where they were being replaced
Added redirection for getc() and putc() on threaded C library
Added <math.h> include to get frexp() and ldexp() declarations
Added prototypes and includes from patch by Randolph Fritz. Added more required includes and reduced other compile warnings.
Replaced inline copyright notice with #include "copyright.h"
Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
fixed bug caused by last change for negative values in getflt()
minor improvement of getflt() accuracy (bug introduced 96/05/28
Removed problematic math function declarations
Changes for PC port
Initial revision
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