dd85c6cce4
https://github.com/llvm/llvm-project/pull/75332 diagnosed narrowing involving const reference. Our depot has hundreds if not thousands of breakages (https://github.com/llvm/llvm-project/pull/75332#issuecomment-1864757240). Add a subgroup of -Wc++11-narrowing to help users gradually fix their issues without regressing the existing -Wc++11-narrowing diagnostics.
13 lines
702 B
C++
13 lines
702 B
C++
// RUN: %clang_cc1 -fsyntax-only -verify=expected,narrowing %s
|
|
// RUN: %clang_cc1 -fsyntax-only -Wno-c++11-narrowing-const-reference -verify %s
|
|
|
|
struct A { A(const unsigned &x) {} };
|
|
|
|
void foo(int p) {
|
|
A a { -1 }; // narrowing-error {{constant expression evaluates to -1 which cannot be narrowed to type 'unsigned int'}}
|
|
A b { 0 };
|
|
A c { p }; // narrowing-error {{non-constant-expression cannot be narrowed from type 'int' to 'unsigned int' in initializer list}}
|
|
A d { 0.5 }; // narrowing-error {{type 'double' cannot be narrowed to 'unsigned int' in initializer list}}
|
|
// expected-warning@-1 {{implicit conversion from 'double' to 'unsigned int' changes value from 0.5 to 0}}
|
|
}
|