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https://github.com/github/codeql.git
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133 lines
2.0 KiB
C++
133 lines
2.0 KiB
C++
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typedef unsigned int size_t;
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void *malloc(size_t size);
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void free(void *ptr);
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// --- myClass1 ---
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class myClass1
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{
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public:
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myClass1();
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~myClass1();
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void method1();
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void method2();
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private:
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int *array1, *array2, *array3, *array4, *array5, *array6, *array7, *array8;
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};
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myClass1 :: myClass1()
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{
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array1 = (int *)malloc(sizeof(int) * 100);
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array2 = (int *)malloc(sizeof(int) * 100);
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array3 = (int *)malloc(sizeof(int) * 100);
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array4 = (int *)malloc(sizeof(int) * 100); // never freed
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free(array1);
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}
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myClass1 :: ~myClass1()
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{
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free(array2);
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free(array7);
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}
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void myClass1 :: method1()
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{
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array5 = (int *)malloc(sizeof(int) * 100);
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array6 = (int *)malloc(sizeof(int) * 100);
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array7 = (int *)malloc(sizeof(int) * 100);
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array8 = (int *)malloc(sizeof(int) * 100); // never freed
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free(array3);
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free(array5);
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}
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void myClass1 :: method2()
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{
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free(array6);
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}
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// --- myClass2 ---
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class myClass2
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{
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public:
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myClass2();
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~myClass2();
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void method1();
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void method2();
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private:
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int *array1, *array2, *array3, *array4, *array5, *array6, *array7, *array8;
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};
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myClass2 :: myClass2()
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{
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array1 = (int *)malloc(sizeof(int) * 100);
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array2 = (int *)malloc(sizeof(int) * 100);
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array3 = (int *)malloc(sizeof(int) * 100);
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array4 = (int *)malloc(sizeof(int) * 100); // never freed
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free(array1);
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}
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myClass2 :: ~myClass2()
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{
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free(array2);
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free(array7);
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}
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void myClass2 :: method1()
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{
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array5 = (int *)malloc(sizeof(int) * 100);
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array6 = (int *)malloc(sizeof(int) * 100);
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array7 = (int *)malloc(sizeof(int) * 100);
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array8 = (int *)malloc(sizeof(int) * 100); // never freed
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free(array3);
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free(array5);
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}
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void myClass2 :: method2()
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{
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free(array6);
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}
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int main()
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{
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{
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myClass1 mc1;
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mc1.method1();
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mc1.method2();
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}
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{
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myClass2 *mc2;
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mc2 = new myClass2();
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mc2->method1();
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mc2->method2();
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delete mc2;
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}
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{
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void *v1 = malloc(100);
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int *i2 = (int *)malloc(100);
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void *v3 = malloc(100);
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int *i3 = (int *)v3;
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void *v4 = malloc(100);
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free(v1);
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free(i2);
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free(i3);
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free((int *)v4);
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}
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return 0;
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}
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