This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 119a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2025-12-20
Currently function types with different language linkage are notcompatible, and 7.6.1.3 [expr.call] paragraph 1 makes it undefinedbehavior to call a function via a type with a different language linkage.These features are generally not enforced by most current implementations(although some do) between functions with C and C++ language linkage.Should these restrictions be relaxed, perhaps as conditionally-supportedbehavior?
Rationale (October, 2012):
CWG felt that this language design question would be betterconsidered by EWG.
EWG 2022-11-11
Any changes in this area should be pursued via a paper to EWG.