| // 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), ""); |
