The 199711L stands for Year=1997, Month = 11 (i.e., November of 1997) — the date when the committee approved the standard that the rest of the ISO approved in early 1998. For the 2003 standard, there were few enough changes that the committee (apparently) decided to leave that value unchanged. For the 2011 standard, it’s … Read more
It is possible to insert a hash token into the preprocessed token stream. You can do it as follows: #define MACRO(hash, name) hash include name MACRO(#,”hello”) —expands to: # include “hello” However, the standard explicitly rules out any further analysis of such line for the existence of preprocessing directives [cpp.rescan]: The resulting completely macro-replaced preprocessing … Read more
Yes. Pass gcc the -E option. This will output preprocessed source code.
Yes you can do it. In Swift you can still use the “#if/#else/#endif” preprocessor macros (although more constrained), as per Apple docs. Here’s an example: #if DEBUG let a = 2 #else let a = 3 #endif Now, you must set the “DEBUG” symbol elsewhere, though. Set it in the “Swift Compiler – Custom Flags” … Read more