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Annotation of researchv10dc/libI77/notused/nan.h, revision 1.1.1.1

1.1       root        1: /*     @(#)nan.h       1.3     */
                      2: /* Handling of Not_a_Number's (only in IEEE floating-point standard) */
                      3: 
                      4: #define KILLFPE()      (void) kill(getpid(), 8)
                      5: #if u3b || u3b5
                      6: #define NaN(X) (((union { double d; struct { unsigned :1, e:11; } s; } \
                      7:                        *)&X)->s.e == 0x7ff)
                      8: #define KILLNaN(X)     if (NaN(X)) KILLFPE()
                      9: #else
                     10: #define Nan(X) 0
                     11: #define KILLNaN(X)
                     12: #endif

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