cdemo
This commit is contained in:
lids
parent
637de72242
commit
fa2a0dee39
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cmake_minimum_required(VERSION 3.10)
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project(cppcheck_test)
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set(CMAKE_CXX_STANDARD 11)
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include_directories(include)
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add_executable(cppcheck_test
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src/main.cpp
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src/errors.cpp
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src/memory.cpp
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src/utils.cpp
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)
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src\errors.cpp:2:2: information: Include file: <iostream> not found. Please note: Standard library headers do not need to be provided to get proper results. [missingIncludeSystem]
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#include <iostream>
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^
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src\errors.cpp:13:21: error: Array 'arr[3]' accessed at index 10, which is out of bounds. [arrayIndexOutOfBounds]
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std::cout << arr[10] << std::endl;
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^
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src\errors.cpp:7:19: error: Null pointer dereference: p [nullPointer]
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std::cout << *p << std::endl;
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^
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src\errors.cpp:6:14: note: Assignment 'p=nullptr', assigned value is 0
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int* p = nullptr;
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^
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src\errors.cpp:7:19: note: Null pointer dereference
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std::cout << *p << std::endl;
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^
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src\errors.cpp:6:10: style: Variable 'p' can be declared as pointer to const [constVariablePointer]
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int* p = nullptr;
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^
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src\errors.cpp:12:9: style: Variable 'arr' can be declared as const array [constVariable]
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int arr[3] = {1,2,3};
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^
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src\errors.cpp:19:9: error: Uninitialized variable: val [uninitvar]
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if (val > 10) {
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^
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src\memory.cpp:2:2: information: Include file: <cstdio> not found. Please note: Standard library headers do not need to be provided to get proper results. [missingIncludeSystem]
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#include <cstdio>
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^
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src\memory.cpp:3:2: information: Include file: <cstdlib> not found. Please note: Standard library headers do not need to be provided to get proper results. [missingIncludeSystem]
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#include <cstdlib>
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^
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src\memory.cpp:9:1: error: Memory leak: data [memleak]
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}
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^
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src\memory.cpp:15:12: error: Memory pointed to by 'p' is freed twice. [doubleFree]
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delete p;
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^
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src\memory.cpp:14:5: note: Memory pointed to by 'p' is freed twice.
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delete p;
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^
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src\memory.cpp:15:12: note: Memory pointed to by 'p' is freed twice.
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delete p;
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^
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src\memory.cpp:22:1: error: Resource leak: fp [resourceLeak]
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}
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^
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src\memory.cpp:7:10: style: Variable 'data' can be declared as pointer to const [constVariablePointer]
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int* data = new int[100];
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^
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src\memory.cpp:20:11: style: Variable 'fp' can be declared as pointer to const [constVariablePointer]
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FILE* fp = fopen("test.txt", "w");
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^
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src\memory.cpp:14:12: error: Memory is allocated but not initialized: p [uninitdata]
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delete p;
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^
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src\memory.cpp:7:15: style: Variable 'data' is assigned a value that is never used. [unreadVariable]
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int* data = new int[100];
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^
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src\memory.cpp:7:10: style: Variable 'data' is allocated memory that is never used. [unusedAllocatedMemory]
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int* data = new int[100];
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^
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src\memory.cpp:13:10: style: Variable 'p' is allocated memory that is never used. [unusedAllocatedMemory]
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int* p = new int;
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^
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src\memory.cpp:20:14: style: Variable 'fp' is assigned a value that is never used. [unreadVariable]
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FILE* fp = fopen("test.txt", "w");
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^
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src\utils.cpp:2:2: information: Include file: <iostream> not found. Please note: Standard library headers do not need to be provided to get proper results. [missingIncludeSystem]
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#include <iostream>
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^
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src\utils.cpp:6:11: style: Variable 'a' is assigned a value that is never used. [unreadVariable]
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int a = 10;
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^
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src\utils.cpp:11:11: style: Variable 'x' is assigned a value that is never used. [unreadVariable]
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int x = 100;
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^
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src\utils.cpp:5:13: style: The function 'unused_function' is never used. [unusedFunction]
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static void unused_function() {
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^
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nofile:0:0: information: Active checkers: 173/186 (use --checkers-report=<filename> to see details) [checkersReport]
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<?xml version="1.0" encoding="UTF-8"?>
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<results version="2">
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<cppcheck version="2.20.0"/>
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<errors>
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<error id="missingIncludeSystem" severity="information" msg="Include file: <iostream> not found. Please note: Standard library headers do not need to be provided to get proper results." verbose="Include file: <iostream> not found. Please note: Standard library headers do not need to be provided to get proper results.">
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<location file="src/errors.cpp" line="2" column="2"/>
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</error>
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<error id="arrayIndexOutOfBounds" severity="error" msg="Array 'arr[3]' accessed at index 10, which is out of bounds." verbose="Array 'arr[3]' accessed at index 10, which is out of bounds." cwe="788" file0="src/errors.cpp">
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<location file="src/errors.cpp" line="13" column="21" info="Array index out of bounds"/>
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</error>
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<error id="nullPointer" severity="error" msg="Null pointer dereference: p" verbose="Null pointer dereference: p" cwe="476" file0="src/errors.cpp">
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<location file="src/errors.cpp" line="7" column="19" info="Null pointer dereference"/>
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<location file="src/errors.cpp" line="6" column="14" info="Assignment 'p=nullptr', assigned value is 0"/>
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<symbol>p</symbol>
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</error>
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<error id="constVariablePointer" severity="style" msg="Variable 'p' can be declared as pointer to const" verbose="Variable 'p' can be declared as pointer to const" cwe="398" file0="src/errors.cpp">
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<location file="src/errors.cpp" line="6" column="10" info="Variable 'p' can be declared as pointer to const"/>
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<symbol>p</symbol>
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</error>
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<error id="constVariable" severity="style" msg="Variable 'arr' can be declared as const array" verbose="Variable 'arr' can be declared as const array" cwe="398" file0="src/errors.cpp">
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<location file="src/errors.cpp" line="12" column="9" info="Variable 'arr' can be declared as const array"/>
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<symbol>arr</symbol>
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</error>
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<error id="uninitvar" severity="error" msg="Uninitialized variable: val" verbose="Uninitialized variable: val" cwe="457" file0="src/errors.cpp">
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<location file="src/errors.cpp" line="19" column="9"/>
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<symbol>val</symbol>
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</error>
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<error id="missingIncludeSystem" severity="information" msg="Include file: <cstdio> not found. Please note: Standard library headers do not need to be provided to get proper results." verbose="Include file: <cstdio> not found. Please note: Standard library headers do not need to be provided to get proper results.">
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<location file="src/memory.cpp" line="2" column="2"/>
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</error>
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<error id="missingIncludeSystem" severity="information" msg="Include file: <cstdlib> not found. Please note: Standard library headers do not need to be provided to get proper results." verbose="Include file: <cstdlib> not found. Please note: Standard library headers do not need to be provided to get proper results.">
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<location file="src/memory.cpp" line="3" column="2"/>
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</error>
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<error id="memleak" severity="error" msg="Memory leak: data" verbose="Memory leak: data" cwe="401" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="9" column="1"/>
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<symbol>data</symbol>
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</error>
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<error id="doubleFree" severity="error" msg="Memory pointed to by 'p' is freed twice." verbose="Memory pointed to by 'p' is freed twice." cwe="415" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="15" column="12"/>
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<location file="src/memory.cpp" line="14" column="5"/>
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<symbol>p</symbol>
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</error>
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<error id="resourceLeak" severity="error" msg="Resource leak: fp" verbose="Resource leak: fp" cwe="775" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="22" column="1"/>
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<symbol>fp</symbol>
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</error>
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<error id="constVariablePointer" severity="style" msg="Variable 'data' can be declared as pointer to const" verbose="Variable 'data' can be declared as pointer to const" cwe="398" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="7" column="10" info="Variable 'data' can be declared as pointer to const"/>
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<symbol>data</symbol>
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</error>
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<error id="constVariablePointer" severity="style" msg="Variable 'fp' can be declared as pointer to const" verbose="Variable 'fp' can be declared as pointer to const" cwe="398" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="20" column="11" info="Variable 'fp' can be declared as pointer to const"/>
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<symbol>fp</symbol>
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</error>
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<error id="uninitdata" severity="error" msg="Memory is allocated but not initialized: p" verbose="Memory is allocated but not initialized: p" cwe="457" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="14" column="12"/>
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<symbol>p</symbol>
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</error>
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<error id="unreadVariable" severity="style" msg="Variable 'data' is assigned a value that is never used." verbose="Variable 'data' is assigned a value that is never used." cwe="563" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="7" column="15"/>
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<symbol>data</symbol>
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</error>
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<error id="unusedAllocatedMemory" severity="style" msg="Variable 'data' is allocated memory that is never used." verbose="Variable 'data' is allocated memory that is never used." cwe="563" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="7" column="10"/>
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<symbol>data</symbol>
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</error>
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<error id="unusedAllocatedMemory" severity="style" msg="Variable 'p' is allocated memory that is never used." verbose="Variable 'p' is allocated memory that is never used." cwe="563" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="13" column="10"/>
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<symbol>p</symbol>
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</error>
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<error id="unreadVariable" severity="style" msg="Variable 'fp' is assigned a value that is never used." verbose="Variable 'fp' is assigned a value that is never used." cwe="563" file0="src/memory.cpp">
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<location file="src/memory.cpp" line="20" column="14"/>
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<symbol>fp</symbol>
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</error>
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<error id="missingIncludeSystem" severity="information" msg="Include file: <iostream> not found. Please note: Standard library headers do not need to be provided to get proper results." verbose="Include file: <iostream> not found. Please note: Standard library headers do not need to be provided to get proper results.">
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<location file="src/utils.cpp" line="2" column="2"/>
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</error>
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<error id="unreadVariable" severity="style" msg="Variable 'a' is assigned a value that is never used." verbose="Variable 'a' is assigned a value that is never used." cwe="563" file0="src/utils.cpp">
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<location file="src/utils.cpp" line="6" column="11"/>
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<symbol>a</symbol>
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</error>
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<error id="unreadVariable" severity="style" msg="Variable 'x' is assigned a value that is never used." verbose="Variable 'x' is assigned a value that is never used." cwe="563" file0="src/utils.cpp">
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<location file="src/utils.cpp" line="11" column="11"/>
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<symbol>x</symbol>
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</error>
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<error id="unusedFunction" severity="style" msg="The function 'unused_function' is never used." verbose="The function 'unused_function' is never used." cwe="561">
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<location file="src/utils.cpp" line="5" column="13"/>
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<symbol>unused_function</symbol>
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</error>
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<error id="checkersReport" severity="information" msg="Active checkers: 173/186 (use --checkers-report=<filename> to see details)" verbose="Active checkers: 173/186 (use --checkers-report=<filename> to see details)"/>
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</errors>
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</results>
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@echo off
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cppcheck --enable=all --std=c++11 -I include src/ 2> cppcheck_report.txt
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echo 扫描完成！报告已保存到 cppcheck_report.txt
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pause
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#!/bin/bash
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cppcheck --enable=all --std=c++11 -I include src/ 2> cppcheck_report.txt
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echo "扫描完成！报告已保存到 cppcheck_report.txt"
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#ifndef TEST_ERRORS_H
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#define TEST_ERRORS_H
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// 声明各种错误函数
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void test_null_pointer();
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void test_array_out_of_bounds();
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void test_uninitialized_var();
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void test_memory_leak();
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void test_double_free();
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void test_file_leak();
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void test_unused_code();
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#endif
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#include "test_errors.h"
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#include <iostream>
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// 空指针解引用
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void test_null_pointer() {
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int* p = nullptr;
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std::cout << *p << std::endl;
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}
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// 数组越界
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void test_array_out_of_bounds() {
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int arr[3] = {1,2,3};
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std::cout << arr[10] << std::endl;
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}
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// 未初始化变量
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void test_uninitialized_var() {
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int val;
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if (val > 10) {
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std::cout << "val > 10" << std::endl;
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}
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}
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#include "test_errors.h"
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int main() {
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// 调用所有含错误的函数
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test_null_pointer();
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test_array_out_of_bounds();
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test_uninitialized_var();
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test_memory_leak();
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test_double_free();
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test_file_leak();
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test_unused_code();
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return 0;
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}
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#include "test_errors.h"
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#include <cstdio>
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#include <cstdlib>
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// 内存泄漏
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void test_memory_leak() {
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int* data = new int[100];
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// 没有 delete[]
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}
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// 重复释放
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void test_double_free() {
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int* p = new int;
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delete p;
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delete p;
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}
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// 文件句柄泄漏
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void test_file_leak() {
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FILE* fp = fopen("test.txt", "w");
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// 没有 fclose
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}
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#include "test_errors.h"
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#include <iostream>
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// 未使用函数
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static void unused_function() {
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int a = 10;
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}
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// 未使用变量
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void test_unused_code() {
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int x = 100;
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int y = 200;
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std::cout << y << std::endl;
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}
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