File: nonnull.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (20 lines) | stat: -rw-r--r-- 569 bytes parent folder | download | duplicates (41) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
// RUN: %clang_cc1 -fsyntax-only -verify %s

template<int I>
struct TS {
  __attribute__((returns_nonnull))
  void *value_dependent(void) {
    return I; // no-warning
  }

  __attribute__((returns_nonnull))
  void *value_independent(void) {
    return 0; // expected-warning {{null returned from function that requires a non-null return value}}
  }
};

namespace Template {
  template<typename T> __attribute__((nonnull)) void f(T t);
  void g() { f((void*)0); } // expected-warning {{null passed to a callee that requires a non-null argument}}
  void h() { f(0); }
}