v0

bugs/bugs.cbp

+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="bugs" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Debug">
+				<Option output="bin/Debug/bugs" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Debug/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-g" />
+					<Add option="-DMEMTRACE" />
+				</Compiler>
+			</Target>
+			<Target title="Release">
+				<Option output="bin/Release/bugs" prefix_auto="1" extension_auto="1" />
+				<Option object_output="obj/Release/" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Compiler>
+					<Add option="-O2" />
+				</Compiler>
+				<Linker>
+					<Add option="-s" />
+				</Linker>
+			</Target>
+		</Build>
+		<Compiler>
+			<Add option="-pedantic" />
+			<Add option="-std=c++11" />
+			<Add option="-Wall" />
+			<Add option="-Werror" />
+		</Compiler>
+		<Unit filename="bugs.cpp" />
+		<Unit filename="memtrace.cpp" />
+		<Unit filename="memtrace.h" />
+		<Extensions>
+			<code_completion />
+			<envvars />
+			<debugger />
+			<lib_finder disable_auto="1" />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>

bugs/bugs.cpp

+#include <iostream>
+#include <string>
+#include <sstream>
+#include <vector>
+#include "memtrace.h"
+
+const char *str(std::stringstream& ss) {
+        return ss.str().c_str();
+}
+
+void bug1() {
+    std::stringstream ss;
+    ss << "Hello";
+    std::cout << ss.str() << std::endl;
+    std::cout << str(ss) << std::endl;
+}
+
+void feltolt(std::vector<const char*>& v, std::string s) {
+    v.push_back(s.c_str());
+}
+
+void kiir(std::vector<const char*>& v) {
+    for (size_t i = 0; i < v.size(); i++) {
+        std::cout << v[i] << std::endl;
+    }
+}
+
+void bug2() {
+    std::vector<const char*> v;
+    feltolt(v, "Hello");
+    feltolt(v, "World");
+    kiir(v);
+}
+
+
+struct Mat {
+     int **p;
+     int siz;
+     Mat(int n = 0) :siz(n) {
+        p = new int*[siz];
+        for (int i = 0; i < siz; i++)
+            p[i] = new int[siz];
+     }
+     size_t size() const { return siz; }
+     ~Mat() {
+        for (int i = 0; i < siz; i++)
+            delete[] p[i];
+        delete[] *p;
+     }
+};
+
+void bug3() {
+    Mat m;
+    std::cout << "size:" << m.size() << std::endl;
+}
+
+
+void prmenu() {
+#ifdef MEMTRACE
+    std::cout << "\n\tMEMTRACE bekapcsolva\n";
+#else
+    std::cout << "\n\tMEMTRACE nincs bekapcsolva\n";
+#endif
+    std::cout << "Melyik teszteset legynen? (1,2,3): ";
+}
+
+int main() {
+    int i;
+    prmenu();
+    while (std::cin >> i) {
+        switch (i) {
+          case 1:
+            std::cout << "TEST1\n";
+            bug1();
+          break;
+
+          case 2:
+            std::cout << "TEST2\n";
+            bug2();
+          break;
+
+          case 3:
+            std::cout << "TEST3\n";
+            bug3();
+          break;
+        }
+        prmenu();
+    }
+}

bugs/memtrace.h

+/*********************************
+Memoriaszivargas-detektor
+Keszitette: Peregi Tamas, BME IIT, 2011
+            petamas@iit.bme.hu
+Kanari:     Szeberenyi Imre, 2013.,
+VS 2012:    Szeberényi Imre, 2015.,
+mem_dump:   2016.
+inclue-ok:  2017., 2018. 2019.
+*********************************/
+
+#ifndef MEMTRACE_H
+#define MEMTRACE_H
+
+#if defined(MEMTRACE)
+
+/*ha definiálva van, akkor a hibakat ebbe a fajlba írja, egyébkent stderr-re*/
+/*#define MEMTRACE_ERRFILE MEMTRACE.ERR*/
+
+/*ha definialva van, akkor futas kozben lancolt listat epit. Javasolt a hasznalata*/
+#define MEMTRACE_TO_MEMORY
+
+/*ha definialva van, akkor futas kozben fajlba irja a foglalasokat*/
+/*ekkor nincs ellenorzes, csak naplozas*/
+/*#define MEMTRACE_TO_FILE*/
+
+/*ha definialva van, akkor a megallaskor automatikus riport keszul */
+#define MEMTRACE_AUTO
+
+/*ha definialva van, akkor malloc()/calloc()/realloc()/free() kovetve lesz*/
+#define MEMTRACE_C
+
+#ifdef MEMTRACE_C
+	/*ha definialva van, akkor free(NULL) nem okoz hibat*/
+	#define ALLOW_FREE_NULL
+#endif
+
+#ifdef __cplusplus
+	/*ha definialva van, akkor new/delete/new[]/delete[] kovetve lesz*/
+	#define MEMTRACE_CPP
+#endif
+
+#if defined(__cplusplus) && defined(MEMTRACE_TO_MEMORY)
+	/*ha definialva van, akkor atexit helyett objektumot hasznal*/
+	/*ajanlott bekapcsolni*/
+	#define USE_ATEXIT_OBJECT
+#endif
+
+/******************************************/
+/* INNEN NE MODOSITSD                     */
+/******************************************/
+#ifdef NO_MEMTRACE_TO_FILE
+	#undef MEMTRACE_TO_FILE
+#endif
+
+#ifdef NO_MEMTRACE_TO_MEMORY
+	#undef MEMTRACE_TO_MEMORY
+#endif
+
+#ifndef MEMTRACE_AUTO
+    #undef USE_ATEXIT_OBJECT
+#endif
+
+#ifdef __cplusplus
+	#define START_NAMESPACE namespace memtrace {
+	#define END_NAMESPACE } /*namespace*/
+	#define TRACEC(func) memtrace::func
+	#include <new>
+#else
+	#define START_NAMESPACE
+	#define END_NAMESPACE
+	#define TRACEC(func) func
+#endif
+
+// THROW deklaráció változatai
+#if defined(_MSC_VER)
+  // VS rosszul kezeli az __cplusplus makrot
+  #if _MSC_VER < 1900
+    // * nem biztos, hogy jó így *
+	#define THROW_BADALLOC
+	#define THROW_NOTHING
+  #else
+    // C++11 vagy újabb
+	#define THROW_BADALLOC noexcept(false)
+	#define THROW_NOTHING noexcept
+  #endif
+#else
+  #if __cplusplus < 201103L
+	// C++2003 vagy régebbi
+	#define THROW_BADALLOC throw (std::bad_alloc)
+	#define THROW_NOTHING throw ()
+  #else
+    // C++11 vagy újabb
+	#define THROW_BADALLOC noexcept(false)
+	#define THROW_NOTHING noexcept
+  #endif
+#endif
+
+START_NAMESPACE
+	int allocated_blocks();
+END_NAMESPACE
+
+#if defined(MEMTRACE_TO_MEMORY)
+START_NAMESPACE
+        int mem_check(void);
+END_NAMESPACE
+#endif
+
+#if defined(MEMTRACE_TO_MEMORY) && defined(USE_ATEXIT_OBJECT)
+#include <cstdio>
+START_NAMESPACE
+	class atexit_class {
+		private:
+			static int counter;
+			static int err;
+		public:
+			atexit_class() {
+#if defined(CPORTA) && !defined(CPORTA_NOSETBUF)
+			    if (counter == 0) {
+                        setbuf(stdout, 0);
+                        setbuf(stderr, 0);
+			    }
+#endif
+			counter++;
+			}
+
+			int check() {
+				if(--counter == 0)
+					err = mem_check();
+                return err;
+			}
+
+			~atexit_class() {
+			    check();
+            }
+	};
+
+static atexit_class atexit_obj;
+
+END_NAMESPACE
+#endif/*MEMTRACE_TO_MEMORY && USE_ATEXIT_OBJECT*/
+
+/*Innentol csak a "normal" include eseten kell, kulonben osszezavarja a mukodest*/
+#ifndef FROM_MEMTRACE_CPP
+#include <stdlib.h>
+#ifdef __cplusplus
+	#include <iostream>
+/* ide gyűjtjük a nemtrace-vel összeakadó headereket, hogy előbb legyenek */
+
+	#include <fstream>  // VS 2013 headerjében van deleted definició
+	#include <sstream>
+	#include <vector>
+	#include <list>
+	#include <map>
+	#include <algorithm>
+	#include <functional>
+	#include <memory>
+	#include <iomanip>
+	#include <locale>
+	#include <typeinfo>
+	#include <ostream>
+	#include <stdexcept>
+#endif
+#ifdef MEMTRACE_CPP
+	namespace std {
+		typedef void (*new_handler)();
+}
+#endif
+
+#ifdef MEMTRACE_C
+START_NAMESPACE
+	#undef malloc
+	#define malloc(size) TRACEC(traced_malloc)(size,#size,__LINE__,__FILE__)
+	void * traced_malloc(size_t size, const char *size_txt, int line, const char * file);
+
+	#undef calloc
+	#define calloc(count,size) TRACEC(traced_calloc)(count, size, #count","#size,__LINE__,__FILE__)
+	void * traced_calloc(size_t count, size_t size, const char *size_txt, int line, const char * file);
+
+	#undef free
+	#define free(p) TRACEC(traced_free)(p, #p,__LINE__,__FILE__)
+	void traced_free(void * p, const char *size_txt, int line, const char * file);
+
+	#undef realloc
+	#define realloc(old,size) TRACEC(traced_realloc)(old,size,#size,__LINE__,__FILE__)
+	void * traced_realloc(void * old, size_t size, const char *size_txt, int line, const char * file);
+
+	void mem_dump(void const *mem, size_t size, FILE* fp);
+
+
+END_NAMESPACE
+#endif/*MEMTRACE_C*/
+
+#ifdef MEMTRACE_CPP
+START_NAMESPACE
+	#undef set_new_handler
+	#define set_new_handler(f) TRACEC(_set_new_handler)(f)
+	void _set_new_handler(std::new_handler h);
+
+	void set_delete_call(int line, const char * file);
+END_NAMESPACE
+
+void * operator new(size_t size, int line, const char * file) THROW_BADALLOC;
+void * operator new[](size_t size, int line, const char * file) THROW_BADALLOC;
+void * operator new(size_t size) THROW_BADALLOC;
+void * operator new[](size_t size) THROW_BADALLOC;
+void operator delete(void * p)  THROW_NOTHING;
+void operator delete[](void * p) THROW_NOTHING;
+
+/* Visual C++ 2012 miatt kell, mert háklis, hogy nincs megfelelő delete, bár senki sem használja */
+void operator delete(void *p, int, const char *) THROW_NOTHING;
+void operator delete[](void *p, int, const char *) THROW_NOTHING;
+
+
+#define new new(__LINE__, __FILE__)
+#define delete memtrace::set_delete_call(__LINE__, __FILE__),delete
+
+#ifdef CPORTA
+#define system(...)  // system(__VA_ARGS__)
+#endif
+
+#endif /*MEMTRACE_CPP*/
+
+#endif /*FROM_MEMTRACE_CPP*/
+#endif /*MEMCHECK*/
+#endif /*MEMTRACE_H*/