DOKK / manpages / debian 12 / systemtap-doc / function::fp_to_long.3stap.en
FUNCTION::FP_TO_LONG(3stap) Floating point processing Taps FUNCTION::FP_TO_LONG(3stap)

function::fp_to_long - Convert fp to int64



    fp_to_long:long(infp:long,roundingMode:long,exact:long)

infp

the 64 bit floating point stored in long

roundingMode

through 0-6, which are round to nearest even, minMag, min, max, near maxMag and round to odd

exact

the boolean value, if exact is 1 than raising inexact exception, otherwise ignore the exception.

Given a 64 bit floating point, which is stored in long, use the long value to initiate self-defined float64_t type, then apply the f64_to_i64 function to get the string representation.

tapset::floatingpoint(3stap)

November 2022 SystemTap Tapset Reference