https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67981
Bug ID: 67981
Summary: new expression with zero size not diagnosed
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
Continuing with new expression conformance issues (bug 67913 and bug 67917):
In 5.3.4, p6, C++ 11 says that "Every constant-expression in a
noptr-new-declarator shall be an integral constant expression (5.19) and
evaluate to a strictly positive value." C++ 14 has an equivalent requirement.
The following test case shows that gcc doesn't implement this constraint and
accepts a constant expression with a zero value:
$ echo "void* f () { return new char [0]; }" | g++ -Wall -Werror -Wextra
-Wpedantic -c -std=c++11 -xc++ -
