================
@@ -0,0 +1,30 @@
+// RUN: %clang_cc1 -std=c++2c -verify %s
+
+namespace dr2798 { // dr2798: 17 drafting
+#if __cpp_static_assert >= 202306
+struct string {
+ constexpr string() {
+ data_ = new char[6]();
+ __builtin_memcpy(data_, "Hello", 5);
+ data_[5] = 0;
+ }
+ constexpr ~string() {
+ delete[] data_;
+ }
+ constexpr unsigned long size() const {
+ return 5;
+ };
+ constexpr const char* data() const {
+ return data_;
+ }
+
+ char* data_;
+};
+struct X {
+ string s;
+};
+consteval X f() { return {}; }
+
+static_assert(false, f().s); // expected-error {{static assertion failed:
Hello}}
----------------
Endilll wrote:
I find `-1` form to work better for longer messages (removing incentive to
shorten them).
More importantly, it explains by example how to use `@` in expected directives,
making it more accessible for people to list notes below the error (which
matches compiler's console output), instead of simply putting `expected-note`
wherever it appears.
https://github.com/llvm/llvm-project/pull/73234
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