---
name: "optionVersion"
section: "3"
platform: "linux"
package: "autogen"
version: "5.18.16-6"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://carta.tech/man/optionVersion"
---

# optionVersion(3)

return the compiled AutoOpts version number

## NAME

optionVersion - return the compiled AutoOpts version number

## SYNOPSIS

\#include \<*your-opts.h*\>\
 cc \[...\] -o outfile infile.c -l**opts** \[...\]

char const \* **optionVersion**(void);

## DESCRIPTION

Returns the full version string compiled into the library. The returned string cannot be modified.

## RETURN VALUE

the version string in constant memory

## SEE ALSO

The *info* documentation for the -l*opts* library.\
 [ao\_string\_tokenize(3)](/man/ao_string_tokenize/3.md), [configFileLoad(3)](/man/configFileLoad/3.md), [optionFileLoad(3)](/man/optionFileLoad/3.md), [optionFindNextValue(3)](/man/optionFindNextValue/3.md), [optionFindValue(3)](/man/optionFindValue/3.md), [optionFree(3)](/man/optionFree/3.md), [optionGetValue(3)](/man/optionGetValue/3.md), [optionLoadLine(3)](/man/optionLoadLine/3.md), [optionMemberList(3)](/man/optionMemberList/3.md), [optionNextValue(3)](/man/optionNextValue/3.md), [optionOnlyUsage(3)](/man/optionOnlyUsage/3.md), [optionPrintVersion(3)](/man/optionPrintVersion/3.md), [optionPrintVersionAndReturn(3)](/man/optionPrintVersionAndReturn/3.md), [optionProcess(3)](/man/optionProcess/3.md), [optionRestore(3)](/man/optionRestore/3.md), [optionSaveFile(3)](/man/optionSaveFile/3.md), [optionSaveState(3)](/man/optionSaveState/3.md), [optionUnloadNested(3)](/man/optionUnloadNested/3.md), [strequate(3)](/man/strequate/3.md), [streqvcmp(3)](/man/streqvcmp/3.md), [streqvmap(3)](/man/streqvmap/3.md), [strneqvcmp(3)](/man/strneqvcmp/3.md), [strtransform(3)](/man/strtransform/3.md),