c-preprocessor

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How is macro replacement performed in complex situations?

Consider the following sample code. #define T(q) L##q #define A(p) T(\"x\" T(#p)) wchar_t w[] = A(a); Is this code well-formed? What is the value of w? Is the behavior different in C and C++? Is it[详细]

2023-03-18 02:40 分类：问答
How do I #define multiple values C / C++

How would I define multiple values of the same type in an array using #define ? For instance, I would like[详细]

2023-03-17 14:11 分类：问答
Using pragma intrinsic(sqrt, pow) in C#?

C++ Summary Using the #prag开发者_StackOverflow社区ma intrinsic command in the preprocessor section of your code will greatly increase the speed of most math function calls.[详细]

2023-03-17 02:11 分类：问答
Calling a function name built with __LINE__

Suppose, I have built an unique function body from b开发者_如何学Pythonelow code: #define TOKENPASTE(x, y) x ## y[详细]

2023-03-17 01:12 分类：问答
How PHP macro define is interpreted?

For C/C++, I think the Preprocessor does the Macro processing before compiler compiles the program and that\'s why Macro name has to be literal or absolute, no variable allowed to declared Macro name.[详细]

2023-03-16 17:37 分类：问答
How to know if a type has been already declared in another source file in C#?

I have a source file in C# that holds all misc types for a project inside their own namespace. Example:[详细]

2023-03-16 16:57 分类：问答
Hide a C++ code block from Intellisense

In order to work around some Intellisense deficiencies in MSVC++ 2010, I would like to \"hide\" some code block fr开发者_开发百科om Intellisense, but not from the compiler. For example:[详细]

2023-03-15 22:28 分类：问答
Preprocessor tomfoolery (stringifying a #include)

Note: This question has nothing to do with OpenCL per se... check the last paragraph for a succinct statement of my question. But to provide some background:[详细]

2023-03-15 16:15 分类：问答
How to generate a series of random numbers with the C/C++ preprocessor

I would like to generate a series of random numbers with the C preprocessor, and store them in variables for use by my program.[详细]

2023-03-15 14:35 分类：问答
Conditional compilation for move operations

How can I check whether my compiler supports rvalue references or not? Is there a standard preprocessor macro, or do different compilers have different macros? Ideally, I would want to write this:[详细]

2023-03-15 12:08 分类：问答