#error Msdn Preprocessor
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#error In C Example
Reference C# Preprocessor Directives C# Preprocessor Directives C# Preprocessor Directives C# Keywords C# Operators C# Preprocessor Directives #if #else #elif #endif #define #undef #warning #error #line #region #endregion #pragma #pragma
#error Gcc
warning #pragma checksum C# Compiler Options C# Compiler Errors C# Language Specification TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. C# Preprocessor Directives Visual Studio 2015 Other Versions Visual Studio 2013 Visual Studio 2012 Visual Studio 2010 Visual Studio error directive must use c++ for the type iostream 2008 Visual Studio 2005 Visual Studio .NET 2003 This section contains information about the following C# preprocessor directives. #if#else#elif#endif#define#undef#warning#error#line#region#endregion#pragma#pragma warning#pragma checksumSee the individual topics for more information and examples.Although the compiler does not have a separate preprocessor, the directives described in this section are processed as if there were one. They are used to help in conditional compilation. Unlike C and C++ directives, you cannot use these directives to create macros.A preprocessor directive must be the only instruction on a line.See AlsoC# ReferenceC# Programming Guide Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is this page helpful? Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! We appreciate your feedback. Dev centers Windows Office Visual Studio Microsoft Azure More... Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies Terms of use Trademarks © 2016 Microsoft © 2016 Microsoft
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C #warning
Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev #error example centers Retired content Samples We’re sorry. The content you requested has been removed. You’ll be auto k&r preferred method redirected in 1 second. Visual Studio 2015 Visual C++ C/C++ Language and Standard Libraries C/C++ Language and Standard Libraries C/C++ Preprocessor Reference C/C++ Preprocessor Reference C/C++ https://msdn.microsoft.com/en-us/library/ed8yd1ha.aspx Preprocessor Reference Welcome Back to C++ C++ Language Reference C/C++ Preprocessor Reference Preprocessor Grammar Summary Pragma Directives and the __Pragma Keyword C Language Reference C Run-Time Library Reference C++ Standard Library Component Extensions for Runtime Platforms C++ Attributes Reference SafeInt Library TOC Collapse the table of content Expand the table of content This https://msdn.microsoft.com/en-us/library/y4skk93w.aspx documentation is archived and is not being maintained. This documentation is archived and is not being maintained. C/C++ Preprocessor Reference Visual Studio 2015 Other Versions Visual Studio 2013 Visual Studio 2012 Visual Studio 2010 Visual Studio 2008 Visual Studio 2005 Visual Studio .NET 2003 The C/C++ Preprocessor Reference explains the preprocessor as it is implemented in Microsoft C/C++. The preprocessor performs preliminary operations on C and C++ files before they are passed to the compiler. You can use the preprocessor to conditionally compile code, insert files, specify compile-time error messages, and apply machine-specific rules to sections of code.In This SectionPreprocessor DirectivesDescribes directives, typically used to make source programs easy to change and easy to compile in different execution environments.Preprocessor OperatorsDiscusses the four preprocessor-specific operators used in the context of the #define directive.Predefined MacrosDiscusses predefined macros as specified by ANSI and Microsoft C++.PragmasDiscusses pragmas, which offer a way for each compiler to offer machine- and operating system-specific
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resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. The content you requested has been removed. You’ll be auto redirected in 1 second. C# C# Reference C# Preprocessor Directives C# Preprocessor Directives #error #error #error #if #else #elif #endif #define #undef #warning #error #line #region #endregion #pragma #pragma warning #pragma checksum TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. #error (C# Reference) Visual Studio 2015 Other Versions Visual Studio 2013 Visual Studio 2012 Visual Studio 2010 Visual Studio 2008 Visual Studio 2005 Visual Studio .NET 2003 #error lets you generate an error from a specific location in your code. For example: Copy #error Deprecated code in this method. RemarksA common use of #error is in a conditional directive. It is also possible to generate a user-defined warning with #warning (C# Reference).Example Copy // preprocessor_error.cs // CS1029 expected #define DEBUG class MainClass { static void Main() { #if DEBUG #error DEBUG is defined #endif } } See AlsoC# ReferenceC# Programming GuideC# Preprocessor Directives Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is this page helpful? Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! We appreciate your feedback. Dev centers Windows Office Visual Studio Microsoft Azure More... Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies Terms of use Trademarks © 2016 Microsoft © 2016 Microsoft