# intel-extensions, Qintel-extensions

Enables or disables all Intel® C and Intel® C++ language extensions.

## Syntax

Linux and macOS: | -intel-extensions -no-intel-extensions

Windows: | /Qintel-extensions /Qintel-extensions-

## Arguments

None

## Default

OFF | The Intel® C and Intel® C++ language extensions are enabled.

## Description

This option enables or disables all Intel® C and Intel® C++ language extensions.

If you specify the negative form of the option (see above), it disables all Intel® C and Intel® C++ language extensions.

Note that certain settings for the [Q]std compiler option can enable or disable decimal floating-point support:

- The following [Q]std settings enable decimal floating-point support: c89, gnu89 (Linux* only), gnu99 (Linux* only)

- The following [Q]std setting disables decimal floating-point support: c99

## IDE Equivalent

Visual Studio: Language > Disable All Intel Language Extensions

Eclipse: Language > Disable All Intel Language Extensions

Xcode: Language > Enable Intel C/C++ language extensions

## Alternate Options

None

Parent topic: Language Options

## See Also

std, Qstd compiler option