I want to comment a line using the pre-processor: #define open /##* #define close */ main() { open commented line close
I have several obj-c classes, each of which require a number of constants that are used in switch statements.
Since LLVM/cLang is espec开发者_C百科ially well designed. This seems like a great opportunity to augment the C/C++ macro/preprocessor system.
I have to do something like this in C. It works only if I use a char, but I need a string. How can I do this?
If any, what are the (obviously ignored by GCC) comments below called? How do I get rid of them? Here: eisbaw@len开发者_Python百科o:~/GCC$ cpp < /dev/null
This question already has answers here: 开发者_JAVA技巧Why can't I use sizeof in a preprocessor condition?
I have a piece of code which compiles without problems with x86 gcc 4.4.1 but fails with blackfin gcc 4.1.2 with many \"expected unqualified-id before numeric constant\" errors. I see that there are s
I have sort of a tricky problem I\'m attempting to solve. First of all, an overview: I have an external API not under my control, which is used by a massive amount of legacy code.
I\'m not sure if this is possible, but I would like to create a shared object file and I would like to make it easy to use by having a #define that can be used to dereference the function names.
In C, shall I prefer constants over defines? I\'ve reading a lot of 开发者_高级运维code lately, and all of the examples make heavy use of defines.No, in general you should not use const-qualified obje
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