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1. What Is Stdafx
2. Dev C++ 5.11
3. Dev C++ For Windows 10
4. Dev C++ Online
5. Include Stdafx In Header File
6. Stdafx Error

By definition 'Stdafx.h' is a precompiled header. Precompiled the word implies that this header file is precompiled (once compiled no need to compile it again). Precompiled Header stdafx.h is basically used in Microsoft Visual Studio to let the compiler know the files that are once compiled and no need to compile it from scratch. Oct 24, 2019 Precompiled Header Files.; 13 minutes to read; In this article. When you create a new project in Visual Studio, a precompiled header file named pch.h is added to the project. (In Visual Studio 2017 and earlier, the file was called stdafx.h.) The purpose of the file is to speed up the build process. Aug 16, 2016  비쥬얼 스튜디오에서 C을 작업할 때면 stdafx.h는 빼놓을래야 빼놓을 수 없을 만큼 자주 보이는 헤더라고 할 수 있습니다. Stdafx.h는 비쥬얼 스튜디오를 사용하는 개발자들에게서 자주 사용되는 함수들을 미리 컴파일해서 제공하는 헤더파일이라고 할 수 있습니다. Nov 09, 2016 Libreria iostream y conio.h - Dev C MULTISERVICES SOCIES. Unsubscribe from MULTISERVICES SOCIES? Cancel Unsubscribe. Subscribe Subscribed Unsubscribe 457. Free download page for Project C OPENGL 3D FUNCTIONS program's stdafx.h.This is a C program which includes OpenGL library glut.h. By the program you are able to draw 6 different 3D functions. Program also has OpenGL functions that provides you to rotate the graphics.

When you create a new project in Visual Studio, a precompiled header file named pch.h is added to the project. (In Visual Studio 2017 and earlier, the file was called stdafx.h.) The purpose of the file is to speed up the build process. Any stable header files, for example Standard Library headers such as <vector>, should be included here. The precompiled header is compiled only when it, or any files it includes, are modified. If you only make changes in your project source code, the build will skip compilation for the precompiled header.

The compiler options for precompiled headers are /Y. In the project property pages, the options are located under Configuration Properties > C/C++ > Precompiled Headers. You can choose to not use precompiled headers, and you can specify the header file name and the name and path of the output file.

What Is Stdafx

Custom precompiled code

For large projects that take significant time to build, you may want to consider creating custom precompiled files. The Microsoft C and C++ compilers provide options for precompiling any C or C++ code, including inline code. Using this performance feature, you can compile a stable body of code, store the compiled state of the code in a file, and, during subsequent compilations, combine the precompiled code with code that is still under development. Each subsequent compilation is faster because the stable code does not need to be recompiled.

When to Precompile Source Code

Precompiled code is useful during the development cycle to reduce compilation time, especially if:

• You always use a large body of code that changes infrequently.

• Your program comprises multiple modules, all of which use a standard set of include files and the same compilation options. In this case, all include files can be precompiled into one precompiled header.

The first compilation — the one that creates the precompiled header (PCH) file — takes a bit longer than subsequent compilations. Subsequent compilations can proceed more quickly by including the precompiled code.

You can precompile both C and C++ programs. In C++ programming, it is common practice to separate class interface information into header files. These header files can later be included in programs that use the class. By precompiling these headers, you can reduce the time a program takes to compile.

Note

Although you can use only one precompiled header (.pch) file per source file, you can use multiple .pch files in a project.

Two Choices for Precompiling Code

Dev C++ 5.11

You can precompile any C or C++ code; you are not limited to precompiling only header files.

Precompiling requires planning, but it offers significantly faster compilations if you precompile source code other than simple header files.

Precompile code when you know that your source files use common sets of header files but don't include them in the same order, or when you want to include source code in your precompilation.

The precompiled-header options are /Yc (Create Precompiled Header File) and /Yu (Use Precompiled Header File). Use /Yc to create a precompiled header. When used with the optional hdrstop pragma, /Yc lets you precompile both header files and source code. Select /Yu to use an existing precompiled header in the existing compilation. You can also use /Fp with the /Yc and /Yu options to provide an alternative name for the precompiled header.

The compiler option reference topics for /Yu and /Yc discuss how to access this functionality in the development environment.

Precompiled Header Consistency Rules

Because PCH files contain information about the machine environment as well as memory address information about the program, you should only use a PCH file on the machine where it was created.

Consistency Rules for Per-File Use of Precompiled Headers

The /Yu compiler option lets you specify which PCH file to use.

When you use a PCH file, the compiler assumes the same compilation environment — one that uses consistent compiler options, pragmas, and so on — that was in effect when you created the PCH file, unless you specify otherwise. If the compiler detects an inconsistency, it issues a warning and identifies the inconsistency where possible. Such warnings do not necessarily indicate a problem with the PCH file; they simply warn you of possible conflicts. Consistency requirements for PCH files are described in the following sections.

Compiler Option Consistency

The following compiler options can trigger an inconsistency warning when using a PCH file:

• Macros created using the Preprocessor (/D) option must be the same between the compilation that created the PCH file and the current compilation. The state of defined constants is not checked, but unpredictable results can occur if these change.

• PCH files do not work with the /E and /EP options.

• PCH files must be created using either the Generate Browse Info (/FR) option or the Exclude Local Variables (/Fr) option before subsequent compilations that use the PCH file can use these options.

C 7.0-Compatible (/Z7)

If this option is in effect when the PCH file is created, subsequent compilations that use the PCH file can use the debugging information.

If the C 7.0-Compatible (/Z7) option is not in effect when the PCH file is created, subsequent compilations that use the PCH file and /Z7 trigger a warning. The debugging information is placed in the current .obj file, and local symbols defined in the PCH file are not available to the debugger.

Include Path Consistency

A PCH file does not contain information about the include path that was in effect when it was created. When you use a PCH file, the compiler always uses the include path specified in the current compilation.

Source File Consistency

When you specify the Use Precompiled Header File (/Yu) option, the compiler ignores all preprocessor directives (including pragmas) that appear in the source code that will be precompiled. The compilation specified by such preprocessor directives must be the same as the compilation used for the Create Precompiled Header File (/Yc) option.

Pragma Consistency

Pragmas processed during the creation of a PCH file usually affect the file with which the PCH file is subsequently used. The comment and message pragmas do not affect the remainder of the compilation.

These pragmas affect only the code within the PCH file; they do not affect code that subsequently uses the PCH file:

These pragmas are retained as part of a precompiled header, and affect the remainder of a compilation that uses the precompiled header:

Consistency Rules for /Yc and /Yu

When you use a precompiled header created using /Yc or /Yu, the compiler compares the current compilation environment to the one that existed when you created the PCH file. Be sure to specify an environment consistent with the previous one (using consistent compiler options, pragmas, and so on) for the current compilation. If the compiler detects an inconsistency, it issues a warning and identifies the inconsistency where possible. Such warnings don't necessarily indicate a problem with the PCH file; they simply warn you of possible conflicts. The following sections explain the consistency requirements for precompiled headers.

Compiler Option Consistency

This table lists compiler options that might trigger an inconsistency warning when using a precompiled header:

Note

The precompiled header facility is intended for use only in C and C++ source files.

Using Precompiled Headers in a Project

Previous sections present an overview of precompiled headers: /Yc and /Yu, the /Fp option, and the hdrstop pragma. This section describes a method for using the manual precompiled-header options in a project; it ends with an example makefile and the code that it manages.

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For another approach to using the manual precompiled-header options in a project, study one of the makefiles located in the MFCSRC directory that is created during the default setup of Visual Studio. These makefiles take a similar approach to the one presented in this section but make greater use of Microsoft Program Maintenance Utility (NMAKE) macros, and offer greater control of the build process.

PCH Files in the Build Process

The code base of a software project is usually contained in multiple C or C++ source files, object files, libraries, and header files. Typically, a makefile coordinates the combination of these elements into an executable file. The following figure shows the structure of a makefile that uses a precompiled header file. The NMAKE macro names and the file names in this diagram are consistent with those in the example code found in Sample Makefile for PCH and Example Code for PCH.

The figure uses three diagrammatic devices to show the flow of the build process. Named rectangles represent each file or macro; the three macros represent one or more files. Shaded areas represent each compile or link action. Arrows show which files and macros are combined during the compilation or linking process.

Structure of a Makefile That Uses a Precompiled Header File

Beginning at the top of the diagram, both STABLEHDRS and BOUNDRY are NMAKE macros in which you list files not likely to need recompilation. These files are compiled by the command string

CL /c /W3 /Yc$(BOUNDRY) applib.cpp myapp.cpp

only if the precompiled header file (STABLE.pch) does not exist or if you make changes to the files listed in the two macros. In either case, the precompiled header file will contain code only from the files listed in the STABLEHDRS macro. List the last file you want precompiled in the BOUNDRY macro.

The files you list in these macros can be either header files or C or C++ source files. (A single PCH file cannot be used with both C and C++ modules.) Note that you can use the hdrstop macro to stop precompilation at some point within the BOUNDRY file. See hdrstop for more information.

Continuing down the diagram, APPLIB.obj represents the support code used in your final application. It is created from APPLIB.cpp, the files listed in the UNSTABLEHDRS macro, and precompiled code from the precompiled header.

MYAPP.obj represents your final application. It is created from MYAPP.cpp, the files listed in the UNSTABLEHDRS macro, and precompiled code from the precompiled header.

Finally, the executable file (MYAPP.EXE) is created by linking the files listed in the OBJS macro (APPLIB.obj and MYAPP.obj).

Sample Makefile for PCH

The following makefile uses macros and an !IF, !ELSE, !ENDIF flow-of-control command structure to simplify its adaptation to your project.

Aside from the STABLEHDRS, BOUNDRY, and UNSTABLEHDRS macros shown in the figure 'Structure of a Makefile That Uses a Precompiled Header File' in PCH Files in the Build Process, this makefile provides a CLFLAGS macro and a LINKFLAGS macro. You must use these macros to list compiler and linker options that apply whether you build a debug or final version of the application's executable file. There is also a LIBS macro where you list the libraries your project requires.

The makefile also uses !IF, !ELSE, !ENDIF to detect whether you define a DEBUG symbol on the NMAKE command line:

This feature makes it possible for you to use the same makefile during development and for the final versions of your program — use DEBUG=0 for the final versions. The following command lines are equivalent:

For more information on makefiles, see NMAKE Reference. Also see MSVC Compiler Options and the MSVC Linker Options.

Example Code for PCH

The following source files are used in the makefile described in PCH Files in the Build Process and Sample Makefile for PCH. Note that the comments contain important information.

See also

C/C++ Building Reference
MSVC Compiler Options

Hi, friends!

Antares released Auto-Tune Artist in the summer of 2019 replacing Auto-Tune Live. It takes the main automatic real time engine from its bigger brother - Auto-Tune Pro but focusing Artist more towards producing creative and transparent tuning with little fuss for the end user. One of the better artists to be on this list (the auto-tune isn't that bad in her case). But 'Starstruck' is just awful. One of the better artists to be on this list (the auto-tune isn't that bad in. T-Pain is the king of autotune, and uses it so much in his songs that he sounds like a robot. Believe it or not, T-Pain sounds amazing without Auto-Tune. I can assume he wasted his talent with Auto-Tune. Mumbizz01 He is the king of autotune. He is so autotuned that his voice sounds unrealistic. Worst auto tune artists.

So, I'm making the jump from console C++ to Windows programs, and actually having a lot of fun with that! But my method is, to use my Beginner's edition VC++ to compose the program, and when it's 'done', I switch to the free Bloodshed Dev C++ compiler (because the VC always puts that annoying dialog box you have to dismiss before the program will run, the one that says you can't release your program to the public, end-user-liscence blah,blah).

Usually, I manage OK with finishing a project in Dev that started in VC, but this time I have a dialog-based program that includes <stdafx.h>, which in turn includes five other afx*.h files, too.

Dev C++ For Windows 10

Dev C++ throws a fit about this. Even after I copied every relevent header over to the Dev C++'s Include directory, it STILL complains that it can't find the headers!

Dev C++ Online

Clue #1: This application used MFC wizard alot while it was a Microsoft project. Handy for adding all those bells and whistles, but does that doom it as far as Dev C++ is concerned?

Include Stdafx In Header File

Clue #2: I have noticed multiple repeat includes in different files of the project. Microsoft seemed happy with that, and I assumed everything was guarded by #ifndef statements. But do they only work for Visual C++?

Stdafx Error

Someone told me once, 'Just wait until you get linker errors!' I see what he was talking about, now..