Title
Initialization with string literals
Status
open
Section
9.4.1 [dcl.init.general]
Submitter
Jiang An

Created on 2024-12-27.00:00:00 last changed 1 month ago

Messages

Date: 2024-12-30.21:14:44

(From submission #661.)

Subclause 9.4.1 [dcl.init.general] bullet 16.3 specifies:

  • ...
  • If the destination type is an array of characters, an array of char8_t, an array of char16_t, an array of char32_t, or an array of wchar_t, and the initializer is a string-literal, see 9.4.3 [dcl.init.string].
  • ...

However, the initializer will be of the form = string-literal or (string-literal), neither of which is a string-literal, obviously.

On a slightly related note, implementations other than EDG and gcc in strict modes support parenthesized string literals, e.g.

  const char s1[] = ("foo");
  const char s2[] = {("foo")};

The latter is clearly not covered by 9.4.5 [dcl.init.list] bullet 3.3:

  • ...
  • Otherwise, if T is a character array and the initializer list has a single element that is an appropriately-typed string-literal (9.4.3 [dcl.init.string]), initialization is performed as described in that subclause.
  • ...

Possible resolution:

Subclause 9.4.1 [dcl.init.general] bullet 16.3 specifies:

  • ...
  • If the destination type is an array of characters, an array of char8_t, an array of char16_t, an array of char32_t, or an array of wchar_t, and the initializer initializer is a string-literal of the form = string-literal or of the form ( string-literal ), see 9.4.3 [dcl.init.string].
  • ...
History
Date User Action Args
2024-12-27 00:00:00admincreate