| // RUN: %clang_cc1 -fsyntax-only -Wignored-attributes -verify -std=c23 %s |
| // RUN: %clang_cc1 -fsyntax-only -Wignored-attributes -verify -x c++ %s |
| // RUN: %clang_cc1 -fsyntax-only -ast-dump %s | FileCheck %s |
| |
| inline int frob(int x) { return x; } |
| |
| [[deprecated]] int frob(int); // expected-note 2 {{'frob' has been explicitly marked deprecated here}} |
| |
| void use1() { |
| // Using this should give a deprecation warning, but not a nodiscard warning. |
| frob(0); // expected-warning {{'frob' is deprecated}} |
| } |
| |
| [[nodiscard]] int frob(int); |
| |
| void use2() { |
| // This should give both warnings. |
| frob(0); // expected-warning {{'frob' is deprecated}} \ |
| expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
| } |
| |
| [[maybe_unused]] int frob(int); |
| |
| // Currently, this is only allowed for the standard spelling of the attributes. |
| void blob() {} // expected-note {{previous definition is here}} |
| __attribute__((deprecated)) void blob(); // expected-warning {{attribute declaration must precede definition}} |
| |
| // CHECK: FunctionDecl {{.*}} frob |
| |
| // CHECK: FunctionDecl {{.*}} prev {{.*}} frob |
| // CHECK: DeprecatedAttr |
| |
| // CHECK: FunctionDecl {{.*}} prev {{.*}} frob |
| // CHECK: DeprecatedAttr |
| // CHECK: WarnUnusedResultAttr |
| |
| // CHECK: FunctionDecl {{.*}} prev {{.*}} frob |
| // CHECK: DeprecatedAttr |
| // CHECK: WarnUnusedResultAttr |
| // CHECK: UnusedAttr |
| |
