[llvm-bugs] [Bug 38043] New: Explicit array initialization in an initializer list

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Jul 3 11:04:57 PDT 2018


            Bug ID: 38043
           Summary: Explicit array initialization in an initializer list
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: zahira.ammarguellat at intel.com
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org

Let's consider this test case:

#include <stdio.h>

struct foo {
  int i;
  foo() : i(23) {}

struct goo {
  goo() {}
  goo(const goo & other);
  foo _lala[2];

goo::goo(const goo & other)
  : _lala(other._lala)

int main()
  goo z;
  if (z._lala[0].i == 23)
  return 0;

GCC compiles this.
CL and CLANG both generate an error.

Clang's error message is:
error: array initializer must be an initializer list

If the community doesn't want to follow GCC and allow array initialization via
an initializer list (violation of C++), then clang should at least return the
right error message as this is misleading?

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