File: operator-new-size-diagnose_if.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 (24 lines) | stat: -rw-r--r-- 716 bytes parent folder | download | duplicates (29) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
// RUN: %clang_cc1 %s -verify -fno-builtin -std=c++14

using size_t = decltype(sizeof(int));

#define _diagnose_if(...) __attribute__((diagnose_if(__VA_ARGS__)))

namespace operator_new {
struct T0 {
  int j = 0;
  static void *operator new(size_t i) _diagnose_if(i == sizeof(int), "yay", "warning"); // expected-note{{from 'diagnose_if'}}
};

struct T1 {
  int j = 0;
  static void *operator new[](size_t i) _diagnose_if(i == 8 * sizeof(int), "yay", "warning"); // expected-note 2{{from 'diagnose_if'}}
};

void run(int x) {
  new T0;       // expected-warning{{yay}}
  new T1[8];    // expected-warning{{yay}}
  new T1[4][2]; // expected-warning{{yay}}
  new T1[x];    // no warning.
}
} // namespace operator_new