Hi all, I have a simple memory mapped interface, and I would like to write through this values to two registers and then read them back. The following code example works fine: volatile int *reg1 = (int *) 0x80000000; volatile int *reg2 = (int *) 0x80000004; *reg1 = 12; *reg2 = 23; printf("reg1 = %i\n", *reg1); printf("reg...
Is it possible with gcc to eliminate the warning below without eliminating all warnings? pasting "/" and "/" does not give a valid preprocessing token For a certain platform, I must use a specific cross-compiler, but I can use make, so I use gcc to create the dependencies. I know that I'm passing the “//” token to the compiler and it’...
Hello, I have a C-program (an Apache module, i.e. the program runs often), which is going to write() a 0-terminated string over a socket, so I need to know its length. The string is #defined as: #define POLICY "<?xml version=\"1.0\"?>\n" \ "<!DOCTYPE cross-domain-policy SYSTEM\n" \ "\"http://www.adobe.com/xml/dtds/cross-domain-p...
A few questions about the C++ preprocessor: how to make the preprocessor go to a new line into the preprocessoring code? how to make the preprocessor insert a tab character or multiple spaces into the preprocessoring code? how to make the preprocessor insert comments into the preprocessoring code? ...
Is it possible to write a Macro (using token concatenation) that returns fmt for printf ? Eg. #define STR_FMT(x) ...code-here... STR_FMT(10) expands to "%10s" STR_FMT(15) expands to "%15s" ... etc. So that I can use this macro inside a printf: printf(STR_FMT(10), "*"); ...
Here's the situation: I have three files, Test1.cpp and Test2.cpp. Test1.cpp can be compiled as-is into a stand-alone application. Test1.cpp also contains some functions that I would like to re-use in Test2.cpp. I'm using an #ifndef #endif block to conditionally exclude the main function of Test1.cpp so that when I compile Test2.cpp, ...
Is it possible to determine the line number that calls a function without the aid of a macro? Consider this code: #include <iostream> #define PrintLineWithMacro() \ std::cout << "Line: " << __LINE__ << std::endl; // Line 4 void PrintLine() { std::cout << "Line: " << __LINE__ << std::endl; // Line 8 } int main(int argc, char ...
I want to have a C preprocessor macro that knows the number of instantiations/macro calls of this macro so far. Example: int main() { printf("%d\n", MACRO()); printf("%d\n", MACRO()); } Should print 0 1 Is something like this possible? Note that it is not enough to forward this to a function as proposed below. It should work i...
Hi, I want to know how to find out if the preprocessor macro __PRETTY_FUNCTION__ can be used with a given compiler (As it is supposed to be non-standard). How do I check this in a header file? What I want to do is something like: #ifndef __PRETTY_FUNCTION__ #define __PRETTY_FUNCTION__ __func__ #endif But, I'm guessing what happ...
I have a string: B<T>::B() [with T = int] Is there any way I can get B<T> [with T = int] from this before run time somehow? :) EDIT: Simplifying: Is there any way to get X & Y separately from a static string XY defined as a preprocessor macro in any form before runtime? ...
Is this a stupid question? Or can I specify g++ to use a program between the preprocessor and compiler? Alternatively, I know that I can just run the preprocessor on a file (hence all the files). Then I am guessing there is a switch to run only the compiler. So I can manually invoke these two and put my program between. If so, how do I ...
Hello, the title could be somewhat misleading so let me explain what I'm trying to achieve. I'm writing a programming language that has a plethora of operators which can work on multiple types with different behaviour. The implementation is evolving and operators are changing/adapting to what I find more useful while trying it. The pro...