fmad64(3M) fmad64(3M)[top]NAMEfmad64(), fmad128(), fmad32() - decimal floating multiply-add functionsSYNOPSISDESCRIPTIONThe function returns (x*y) + z, rounded as one ternary operation: it computes the value (as if) to infinite precision and rounds once to the result format, according to the current (decimal) rounding mode. is a version of it takes arguments and returns a result. is a version of it takes arguments and returns a result. These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward.USAGETo use any of these functions, compile with the option. Make sure your program defines and then includes Link in the math library by specifying or on the linking command line. For more information, see the at the following site:RETURN VALUEIf x, y, or z is NaN, returns NaN. If one of x and y is infinite, the other is zero, and z is not NaN, returns NaN and raises the invalid exception. If x times y is an exact infinity and z is also an infinity but with the opposite sign, returns NaN and raises the invalid exception. returns the properly signed infinity (or, in some non-default rounding direction modes, the properly signed maximum-magnitude finite number) in lieu of a value whose magnitude is too large, and raises the over‐ flow and inexact exceptions. raises the underflow exception whenever a result is tiny (essentially subnormal or zero) and inexact. raises the inexact exception whenever a rounded result does not equal the mathematical result.ERRORSIf one of x and y is infinite, the other is zero, and z is not NaN, sets to If x times y is an exact infinity and z is also an infinity but with the opposite sign, sets to If the correct value would overflow, sets toSEE ALSOmath(5).STANDARDS CONFORMANCEThese functions conform to ISO/IEC TR 24732, "Extension for the pro‐ gramming language C to support decimal floating-point arithmetic". HP Integrity Server Only fmad64(3M)

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