---
name: "function::fp_to_long"
section: "3stap"
platform: "linux"
package: "systemtap-doc"
version: "5.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/function::fp_to_long"
---

# function::fp\_to\_long(3stap)

Convert fp to int64

## NAME

function::fp\_to\_long - Convert fp to int64

## SYNOPSIS

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

## ARGUMENTS

*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.

## DESCRIPTION

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.

## SEE ALSO0

[*tapset::floatingpoint*(3stap)](/tapset::floatingpoint/3stap.md)