c++ - Does compiler include global variables without static modifier in the global symbol table? -


i've read in (effective objective-c 2.0) static variables declared in implementation file (m.file) local translation unit in defined , these variables not exposed in global symbol table. if global varible in .m-file declared without static acts static. static used implicitly in such case or these different matters?

example:

//in m.file  static int staticvariable;//100% static int globalvariable;//is static ? @implementation someclass { //local ivars declaration }

placing variables compiler dependent.

the compiler allowed place file static variables global variable segment, long scoping rules adhered to. actually, compiler can place variables anywhere in read-write memory, again long "as-if" rule adhered to.

when defining variables @ file scope, difference between using static , not, static hides variable other translation units. otherwise treated same.

note: applies c++ since op has c++ tag. don't know if applies objective c since language.


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