cppcoreguidelines-pro-bounds-pointer-arithmetic-pr36489.cpp
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// RUN: %check_clang_tidy -std=c++14-or-later %s cppcoreguidelines-pro-bounds-pointer-arithmetic %t
// Fix PR36489 and detect auto-deduced value correctly.
char *getPtr();
auto getPtrAuto() { return getPtr(); }
decltype(getPtr()) getPtrDeclType();
decltype(auto) getPtrDeclTypeAuto() { return getPtr(); }
auto getPtrWithTrailingReturnType() -> char *;
void auto_deduction_binary() {
auto p1 = getPtr() + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:22: warning: do not use pointer arithmetic
auto p2 = getPtrAuto() + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:26: warning: do not use pointer arithmetic
auto p3 = getPtrWithTrailingReturnType() + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:44: warning: do not use pointer arithmetic
auto p4 = getPtr();
auto *p5 = getPtr();
p4 = p4 + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: do not use pointer arithmetic
p5 = p5 + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:11: warning: do not use pointer arithmetic
auto p6 = getPtrDeclType() + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:30: warning: do not use pointer arithmetic
auto p7 = getPtrDeclTypeAuto() + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:34: warning: do not use pointer arithmetic
auto *p8 = getPtrDeclType() + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: do not use pointer arithmetic
auto *p9 = getPtrDeclTypeAuto() + 1;
// CHECK-MESSAGES: :[[@LINE-1]]:35: warning: do not use pointer arithmetic
}
void auto_deduction_subscript() {
char p1 = getPtr()[2];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
auto p2 = getPtr()[3];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
char p3 = getPtrAuto()[4];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
auto p4 = getPtrAuto()[5];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
char p5 = getPtrWithTrailingReturnType()[6];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
auto p6 = getPtrWithTrailingReturnType()[7];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
auto p7 = getPtrDeclType()[8];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
auto p8 = getPtrDeclTypeAuto()[9];
// CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
}