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// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,cplusplus,alpha.cplusplus.IteratorRange -analyzer-eagerly-assume -analyzer-config aggressive-binary-operation-simplification=true -analyzer-config c++-container-inlining=false %s -verify
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,cplusplus,alpha.cplusplus.IteratorRange -analyzer-eagerly-assume -analyzer-config aggressive-binary-operation-simplification=true -analyzer-config c++-container-inlining=true -DINLINE=1 %s -verify
#include "Inputs/system-header-simulator-cxx.h"
void clang_analyzer_warnIfReached();
void simple_good_end(const std::vector<int> &v) {
auto i = v.end();
if (i != v.end()) {
clang_analyzer_warnIfReached();
*i; // no-warning
}
}
void simple_good_end_negated(const std::vector<int> &v) {
auto i = v.end();
if (!(i == v.end())) {
clang_analyzer_warnIfReached();
*i; // no-warning
}
}
void simple_bad_end(const std::vector<int> &v) {
auto i = v.end();
*i; // expected-warning{{Iterator accessed outside of its range}}
}
void simple_good_begin(const std::vector<int> &v) {
auto i = v.begin();
if (i != v.begin()) {
clang_analyzer_warnIfReached();
*--i; // no-warning
}
}
void simple_good_begin_negated(const std::vector<int> &v) {
auto i = v.begin();
if (!(i == v.begin())) {
clang_analyzer_warnIfReached();
*--i; // no-warning
}
}
void simple_bad_begin(const std::vector<int> &v) {
auto i = v.begin();
*--i; // expected-warning{{Iterator accessed outside of its range}}
}
void copy(const std::vector<int> &v) {
auto i1 = v.end();
auto i2 = i1;
*i2; // expected-warning{{Iterator accessed outside of its range}}
}
void decrease(const std::vector<int> &v) {
auto i = v.end();
--i;
*i; // no-warning
}
void copy_and_decrease1(const std::vector<int> &v) {
auto i1 = v.end();
auto i2 = i1;
--i1;
*i1; // no-warning
}
void copy_and_decrease2(const std::vector<int> &v) {
auto i1 = v.end();
auto i2 = i1;
--i1;
*i2; // expected-warning{{Iterator accessed outside of its range}}
}
void copy_and_increase1(const std::vector<int> &v) {
auto i1 = v.begin();
auto i2 = i1;
++i1;
if (i1 == v.end())
*i2; // no-warning
}
void copy_and_increase2(const std::vector<int> &v) {
auto i1 = v.begin();
auto i2 = i1;
++i1;
if (i2 == v.end())
*i2; // expected-warning{{Iterator accessed outside of its range}}
}
void copy_and_increase3(const std::vector<int> &v) {
auto i1 = v.begin();
auto i2 = i1;
++i1;
if (v.end() == i2)
*i2; // expected-warning{{Iterator accessed outside of its range}}
}
void tricky(std::vector<int> &V, int e) {
const auto first = V.begin();
const auto comp1 = (first != V.end()), comp2 = (first == V.end());
if (comp1)
*first;
}
void loop(std::vector<int> &V, int e) {
auto start = V.begin();
while (true) {
auto item = std::find(start, V.end(), e);
if (item == V.end())
break;
*item; // no-warning
start = ++item; // no-warning
}
}
void bad_move(std::list<int> &L1, std::list<int> &L2) {
auto i0 = --L2.cend();
L1 = std::move(L2);
*++i0; // expected-warning{{Iterator accessed outside of its range}}
}
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