Is there a command in tcl that is equivalent to C++ #define? I\'ve seen ways to imple开发者_如何转开发ment \"define\" using overloading of the proc function, just wanted to know if anyone knows of a m
Something strange happens. I have in my code in a local function #ifdef abc . . . #endif when I write on the top of the file
I\'m including some files from a library and using the gcc preprocessor to generate the dependencies. Right now, if I don\'t use the -MG option, it includes the library headers as dependencies of my s
My problem: I have created a C project in Visual Studio 2010 and defined a conditional compilation constant named QWERTY. My C source code executes #ifdef QWERTY in order to see if it\'s defined or no
I have got the following problem: I want to use M_PI defined in math.h. I开发者_如何学Pythonn order to do that, one should define _USE_MATH_DEFINES before including the header.
In the following code, if I bring the #define N 65536 above the #if FSIZE, then I get the following error:
I came across the following puzzle somewhere #include <stdio.h> int main() { { /*Fill in something here to make this code compile
#define swap(a,b,c)(int t;t=a;a=b;b=t;); void main() { int x=10,y=20; swap (x,y,int); printf(\"%d %d\\n\",x,y);
Is it possible to do something like this: #define F(x) \\ #ifdef DOUBLE \\ 2*x \\ #else \\ x \\ #endif so that when I use F, what it expands to depends on whether the macro DOUBLE is defined?I don\
What is the difference between开发者_如何学编程 using angle brackets and quotes in an include directive?
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