Add tests for danmar#2199, #11207, #11464 (danmar#5817)

chrchr-github · Jan 2, 2024 · 14627ca · 14627ca
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diff --git a/test/testbufferoverrun.cpp b/test/testbufferoverrun.cpp
@@ -1697,6 +1697,24 @@ class TestBufferOverrun : public TestFixture {
         ASSERT_EQUALS(
             "[test.cpp:3] -> [test.cpp:6]: (warning) Either the condition 'x<2' is redundant or the array 'a[3]' is accessed at index 3, which is out of bounds.\n",
             errout.str());
+
+        check("void f() {\n" // #2199
+              "    char a[5];\n"
+              "    for (int i = 0; i < 5; i++) {\n"
+              "        i += 8;\n"
+              "        a[i] = 0;\n"
+              "    }\n"
+              "}\n"
+              "void g() {\n"
+              "    char a[5];\n"
+              "    for (int i = 0; i < 5; i++) {\n"
+              "        a[i + 7] = 0;\n"
+              "    }\n"
+              "}\n");
+        ASSERT_EQUALS(
+            "[test.cpp:5]: (error) Array 'a[5]' accessed at index 8, which is out of bounds.\n"
+            "[test.cpp:11]: (error) Array 'a[5]' accessed at index 11, which is out of bounds.\n",
+            errout.str());
     }
 
     void array_index_59() // #10413

diff --git a/test/testcondition.cpp b/test/testcondition.cpp
@@ -5117,6 +5117,39 @@ class TestCondition : public TestFixture {
               "    if (s.empty() || s.size() < 1) {}\n"
               "}\n");
         ASSERT_EQUALS("[test.cpp:2] -> [test.cpp:2]: (style) Condition 's.size()<1' is always false\n", errout.str());
+
+        check("void bar(std::vector<int>& vv) {\n" // #11464
+              "    class F {\n"
+              "    public:\n"
+              "        F(int, std::vector<int>& lv) : mV(lv) {\n"
+              "            mV.push_back(0);\n"
+              "        }\n"
+              "    private:\n"
+              "        std::vector<int>& mV;\n"
+              "    } fi(1, vv);\n"
+              "}\n"
+              "void g() {\n"
+              "    std::vector<int> v;\n"
+              "    bar(v);\n"
+              "    if (v.empty()) {}\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
+
+        check("struct F {\n"
+              "    F(int, std::vector<int>&lv) : mV(lv) {\n"
+              "        mV.push_back(0);\n"
+              "    }\n"
+              "    std::vector<int>& mV;\n"
+              "};\n"
+              "void g(std::vector<int>& vv) {\n"
+              "    F(1, vv);\n"
+              "}\n"
+              "void f() {\n"
+              "    std::vector<int> v;\n"
+              "    g(v);\n"
+              "    if (v.empty()) {}\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void alwaysTrueLoop()

diff --git a/test/testother.cpp b/test/testother.cpp
@@ -3451,6 +3451,24 @@ class TestOther : public TestFixture {
               "    g(U::V(&t));\n"
               "}\n");
         ASSERT_EQUALS("[test.cpp:6]: (style) Parameter 't' can be declared as reference to const\n", errout.str());
+
+        check("void f1(std::vector<int>& v) {\n" // #11207
+              "    auto it = v.cbegin();\n"
+              "    while (it != v.cend()) {\n"
+              "        if (*it > 12) {}\n"
+              "        ++it;\n"
+              "    }\n"
+              "}\n"
+              "void f2(std::vector<int>& v) {\n"
+              "    auto it = v.begin();\n"
+              "    while (it != v.end()) {\n"
+              "        if (*it > 12) {}\n"
+              "        ++it;\n"
+              "    }\n"
+              "}\n");
+        ASSERT_EQUALS("[test.cpp:1]: (style) Parameter 'v' can be declared as reference to const\n"
+                      "[test.cpp:8]: (style) Parameter 'v' can be declared as reference to const\n",
+                      errout.str());
     }
 
     void constParameterCallback() {