g++ error with -Wextra when compiling protobuf

[LevIserovich]

When turning on extra warnings (-Wextra) and enabling warnings as errors (-Werror) protobuf3 map implementation hits a G++ (version 5.2.0, on Linux) error on the following line

include/google/protobuf/map.h|677 col 31| error: type qualifiers ignored on function return type [-Werror=ignored-qualifiers]
|| value_type* const value() const { return v_; }
|| ^
|| cc1plus: all warnings being treated as errors

The problem with that line is that it's making the pointer itself const, not the value pointed to.
That's what G++ complains about.

Example to reproduce:

#include <include/protobuf/map.h>
int main () { return 0; }

And compile with
g++ -Wextra -Werror file.cpp

The fix should be to either remove that 'const' keyword, as it does nothing, or if const-ness of the pointed value is desired, change it to:

const value_type * value() const { return v_; }

[freitass]

👍

[CHRISANDROID00]

0
down vote
you can try this gcc command utility on github , it basically expand the debugg info for c++ debugging . Here is the link its a executable file called TESTZ.CPP

works with many parameters

https://github.com/CHRISANDROID00/virtual-coder