cc [ flags ] -I/usr/local/include file(s) -L/usr/local/lib -lmcw [ ... ] #include <mathcw.h> extern float fmaf (float x, float y, float z); extern double fma (double x, double y, double z); extern long double fmal (long double x, long double y, long double z); extern __float80 fmaw (__float80 x, __float80 y, __float80 z); extern __float128 fmaq (__float128 x, __float128 y, __float128 z); extern long_long_double fmall (long_long_double x, long_long_double y, long_long_double z); extern decimal_float fmadf (decimal_float x, decimal_float y, decimal_float z); extern decimal_double fmad (decimal_double x, decimal_double y, decimal_double z); extern decimal_long_double fmadl (decimal_long_double x, decimal_long_double y, decimal_long_double z); extern decimal_long_long_double fmadll (decimal_long_long_double x, decimal_long_long_double y, decimal_long_long_double z);
NB: Functions with prototypes containing underscores in type names may be available only with certain extended compilers.
Caution: The value of FLT_ROUNDS is implementation dependent. On some systems, it is fixed at a value that means the IEEE 754 default of round-to-nearest. On others, it is set to a value that reflects the current IEEE 754 rounding mode. On still others, it might be set to a value that means the rounding mode is indeterminate.