https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110186
Bug ID: 110186
Summary: -Weffc++ does not recognize user defined constructor.
Product: gcc
Version: 13.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: amir.ahmed.ansari at outlook dot com
Target Milestone: ---
Created attachment 55292
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55292&action=edit
Code to replicate the problem
Compile the attached code with the following flags:
-std=c++17 -Wall -pedantic -Wextra -Weffc++ -O3 -flto
The following output is generated:
<source>: In constructor 'C::C()':
<source>:23:1: warning: 'C::a' should be initialized in the member
initialization list [-Weffc++]
23 | C::C() = default;
| ^
<source>: In constructor 'D::D()':
<source>:28:5: warning: 'D::a' should be initialized in the member
initialization list [-Weffc++]
28 | D() {}
| ^
The compiler fails to consider B() = default; as a user defined default
constructor and does not generate the warning to initialize a in the member
initialization list.
