Changes to coding standard for 4.0

[mormj]

Please add comments in this thread that should be changed as part of the coding standard.

[mormj]

Enums

Enums should use enum class
The names of enumerations should be lower case, and not require GR_ or _TYPE because of the scoping of the enum class
Enum identifiers should be suffixed with `_type'
Specify data type for the enum only if necessary
Starting values should not be necessary

example:

enum class waveform_type {
sin,
cos,
triangle,
sawtooth
};

[mormj]

if/else brackets

modify the .clang-format file so that
should look like

if {
   // code
}
else {
 // more code
}

(in GR3 it is)

if {
  // code
} else {
  // more code
}

[mormj]

using x = instead of typedef

[mormj]

initialize variables in preference order:

• class definition
• constructor initialization list
• constructor body
  Prefer brace initialization