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ptr-sort.cpp
36 lines (31 loc) · 3.01 KB
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ptr-sort.cpp
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// RUN: %clang_analyze_cc1 %s -std=c++14 -analyzer-output=text -verify \
// RUN: -analyzer-checker=core,alpha.nondeterminism.PointerSorting
#include "Inputs/system-header-simulator-cxx.h"
bool f(int x) { return true; }
bool g(int *x) { return true; }
void PointerSorting() {
int a = 1, b = 2;
std::vector<int> V1 = {a, b};
std::vector<int *> V2 = {&a, &b};
std::is_sorted(V1.begin(), V1.end()); // no-warning
std::nth_element(V1.begin(), V1.begin() + 1, V1.end()); // no-warning
std::partial_sort(V1.begin(), V1.begin() + 1, V1.end()); // no-warning
std::sort(V1.begin(), V1.end()); // no-warning
std::stable_sort(V1.begin(), V1.end()); // no-warning
std::partition(V1.begin(), V1.end(), f); // no-warning
std::stable_partition(V1.begin(), V1.end(), g); // no-warning
std::is_sorted(V2.begin(), V2.end()); // expected-warning {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
// expected-note@-1 {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
std::nth_element(V2.begin(), V2.begin() + 1, V2.end()); // expected-warning {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
// expected-note@-1 {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
std::partial_sort(V2.begin(), V2.begin() + 1, V2.end()); // expected-warning {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
// expected-note@-1 {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
std::sort(V2.begin(), V2.end()); // expected-warning {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
// expected-note@-1 {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
std::stable_sort(V2.begin(), V2.end()); // expected-warning {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
// expected-note@-1 {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
std::partition(V2.begin(), V2.end(), f); // expected-warning {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
// expected-note@-1 {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
std::stable_partition(V2.begin(), V2.end(), g); // expected-warning {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
// expected-note@-1 {{Sorting pointer-like elements can result in non-deterministic ordering}} [alpha.nondeterminism.PointerSorting]
}