function::long_to_fp - Linux
Overview
The function::long_to_fp
command converts a 64-bit long integer to a floating-point number. It is typically used when working with precision calculations or when interfacing with other systems that require floating-point representations.
Syntax
function::long_to_fp [--help] [--version] [--man] <integer>
Options/Flags
--help
: Display a help message and exit.--version
: Display the command’s version number and exit.--man
: Display the command’s manual page and exit.
Examples
Basic usage:
function::long_to_fp 1234567890
Output:
1.23456789e+09
Using a negative integer:
function::long_to_fp -1234567890
Output:
-1.23456789e+09
Common Issues
- Invalid input: The input integer must be a 64-bit long. If an invalid integer is provided, the command will display an error message and exit.
- Overflow: If the input integer is too large or too small to be represented as a floating-point number, the command will display an error message and exit.
Integration
The function::long_to_fp
command can be combined with other Linux commands to perform more complex tasks. For example, the following command converts a file size to a human-readable format:
du -sh / | function::long_to_fp | bc -l | sed 's/[^0-9.]//g'
Related Commands
function::short_to_fp
: Converts a 32-bit short integer to a floating-point number.function::integer_to_fp
: Converts an arbitrary precision integer to a floating-point number.