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
33
34
|
// RUN: not %clang_cc1 -std=c++11 -fsyntax-only %s -fconstexpr-backtrace-limit=0 -fconstexpr-depth=4 -fno-caret-diagnostics 2>&1 | FileCheck %s -check-prefix=TEST1
// TEST1: constant expression
// TEST1-NEXT: exceeded maximum depth of 4
// TEST1-NEXT: in call to 'recurse(2)'
// TEST1-NEXT: in call to 'recurse(3)'
// TEST1-NEXT: in call to 'recurse(4)'
// TEST1-NEXT: in call to 'recurse(5)'
// RUN: not %clang_cc1 -std=c++11 -fsyntax-only %s -fconstexpr-backtrace-limit=2 -fconstexpr-depth=4 -fno-caret-diagnostics 2>&1 | FileCheck %s -check-prefix=TEST2
// TEST2: constant expression
// TEST2-NEXT: exceeded maximum depth of 4
// TEST2-NEXT: in call to 'recurse(2)'
// TEST2-NEXT: skipping 2 calls
// TEST2-NEXT: in call to 'recurse(5)'
// RUN: not %clang_cc1 -std=c++11 -fsyntax-only %s -fconstexpr-backtrace-limit=2 -fconstexpr-depth=8 -fno-caret-diagnostics 2>&1 | FileCheck %s -check-prefix=TEST3
// TEST3: constant expression
// TEST3-NEXT: reinterpret_cast
// TEST3-NEXT: in call to 'recurse(0)'
// TEST3-NEXT: skipping 4 calls
// TEST3-NEXT: in call to 'recurse(5)'
// RUN: not %clang_cc1 -std=c++11 -fsyntax-only %s -fconstexpr-backtrace-limit=8 -fconstexpr-depth=8 -fno-caret-diagnostics 2>&1 | FileCheck %s -check-prefix=TEST4
// TEST4: constant expression
// TEST4-NEXT: reinterpret_cast
// TEST4-NEXT: in call to 'recurse(0)'
// TEST4-NEXT: in call to 'recurse(1)'
// TEST4-NEXT: in call to 'recurse(2)'
// TEST4-NEXT: in call to 'recurse(3)'
// TEST4-NEXT: in call to 'recurse(4)'
// TEST4-NEXT: in call to 'recurse(5)'
constexpr int recurse(int n) { return n ? recurse(n-1) : *(int*)n; }
static_assert(recurse(5), "");
|
