File: nonnull.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (20 lines) | stat: -rw-r--r-- 569 bytes parent folder | download | duplicates (35)
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); }
}