Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference

ID 767253
Date 11/07/2023
Public

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Document Table of Contents

Yc

Tells the compiler to create a precompiled header file.

Syntax

Linux:

None

Windows:

/Yc[filename]

Arguments

filename

Is the name of a C/C++ header file, which is included in the source file using an #include preprocessor directive.

Default

OFF

The compiler does not create or use precompiled headers unless you tell it to do so.

Description

This option tells the compiler to create a precompiled header (PCH) file. It is supported only for single source file compilations.

When filename is specified, the compiler creates a precompiled header file from the headers in the C/C++ program up to and including the C/C++ header specified.

If you do not specify filename, the compiler compiles all code up to the end of the source file, or to the point in the source file where a hdrstop occurs. The default name for the resulting file is the name of the source file with extension .pch.

This option cannot be used in the same compilation as the /Yu option.

NOTE:

This option only applies to host compilation. When offloading is enabled, it does not impact device-specific compilation.

IDE Equivalent

Visual Studio: Precompiled Headers > Precompiled Header File

Eclipse: None

Alternate Options

None

Example

If option /Fp is used, it names the PCH file. Consider the following example command:

icx /c /Ycheader.h /Fpprecomp foo.cpp
icx /c /Yc /Fpprecomp foo.cpp

The name of the PCH file is precomp.pch.

If the header file name is specified, the file name is based on the header file name. For example:

icx /c /Ycheader.h foo.cpp

The name of the PCH file is header.pch.

If no header file name is specified, the file name is based on the source file name. For example:

icx /c /Yc foo.cpp

The name of the PCH file is foo.pch.

See Also