What is the default C -std standard version for the current GCC (especially on Ubuntu)?

Question

When I ask to see the current version of cc I get this.

$ cc --version
cc (Ubuntu/Linaro 4.7.2-2ubuntu1) 4.7.2
Copyright (C) 2012 Free Software Foundation, I         


        

Answer 1

useful information from info gcc for gcc6 and https://gcc.gnu.org/onlinedocs/gcc-5.4.0/gcc/Standards.html#Standards for gcc5

gcc version 6.3.1 - 10.1.0

2.1 C Language
==============
 The default, if no C language dialect options are given, is
'-std=gnu11'.

2.2 C++ Language
================
 The default, if no C++ language dialect options are given, is
'-std=gnu++14'.

gcc version 5.4.0

2.1 C Language
==============
The default, if no C language dialect options are given, is -std=gnu11

2.2 C++ Language
================
The default, if no C++ language dialect options are given, is -std=gnu++98

For C, default mode remains std=gnu11, but for C++ it has jumped from std=gnu++98 to std=gnu++14