File: const.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (32 lines) | stat: -rw-r--r-- 930 bytes parent folder | download | duplicates (3) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
// UNSUPPORTED: system-aix, system-zos
// see https://github.com/llvm/llvm-project/issues/68092
// XFAIL: host={{.*}}-windows-msvc

// RUN: cat %s | clang-repl | FileCheck %s
// RUN: cat %s | clang-repl -Xcc -O2 | FileCheck %s

extern "C" int printf(const char*, ...);

struct A { int val; A(int v); ~A(); void f() const; };
A::A(int v) : val(v) { printf("A(%d), this = %p\n", val, this); }
A::~A() { printf("~A, this = %p, val = %d\n", this, val); }
void A::f() const { printf("f: this = %p, val = %d\n", this, val); }

const A a(1);
// CHECK: A(1), this = [[THIS:.+]]
// The constructor must only be called once!
// CHECK-NOT: A(1)

a.f();
// CHECK-NEXT: f: this = [[THIS]], val = 1
a.f();
// CHECK-NEXT: f: this = [[THIS]], val = 1

%quit
// There must still be no other constructor!
// CHECK-NOT: A(1)

// At the end, we expect exactly one destructor call
// CHECK: ~A
// CHECK-SAME: this = [[THIS]], val = 1
// CHECK-NOT: ~A