https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105050
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Patrick Palka <ppa...@gcc.gnu.org>: https://gcc.gnu.org/g:ff465bd8a0f0f96a00d3067018442917b194b7af commit r12-7831-gff465bd8a0f0f96a00d3067018442917b194b7af Author: Patrick Palka <ppa...@redhat.com> Date: Sat Mar 26 10:20:18 2022 -0400 c++: diagnosing if-stmt with non-constant branches [PR105050] When an if-stmt is determined to be non-constant because both of its branches are non-constant, we issue a somewhat generic error which, since the error also points to the 'if' token, misleadingly suggests the condition is at fault: constexpr-105050.C:8:3: error: expression â<statement>â is not a constant expression 8 | if (p != q && *p < 0) | ^~ This patch clarifies the error message to instead read: constexpr-105050.C:8:3: error: neither branch of âifâ is a constant expression 8 | if (p != q && *p < 0) | ^~ PR c++/105050 gcc/cp/ChangeLog: * constexpr.cc (potential_constant_expression_1) <case IF_STMT>: Clarify error message when a if-stmt is non-constant because its branches are non-constant. gcc/testsuite/ChangeLog: * g++.dg/cpp1y/constexpr-105050.C: New test.
