i have a code written in c++ , it works correctly on visual studio but when i transfer it to linux (QT Designer) i get a run time error shown below:
*** glibc detected *** /home/hfarazi/Test/QT/Test-build-desktop/Test: malloc(): memory corruption: 0x082c2c80 *** ======= Backtrace: ========= /lib/i386-linux-gnu/libc.so.6(+0x6ff22)[0x42cf22] /lib/i386-linux-gnu/libc.so.6(+0x718be)[0x42e8be] /lib/i386-linux-gnu/libc.so.6(__libc_malloc+0x68)[0x4307f8] /usr/lib/i386-linux-gnu/libstdc++.so.6(_Znwj+0x27)[0x2c89d7] /usr/lib/i386-linux-gnu/libstdc++.so.6(_Znaj+0x1b)[0x2c8afb] /home/hfarazi/Test/QT/Test-build-desktop/Test[0x804abdc] /home/hfarazi/Test/QT/Test-build-desktop/Test[0x8062860] /home/hfarazi/Test/QT/Test-build-desktop/Test[0x80644b5] /home/hfarazi/Test/QT/Test-build-desktop/Test[0x806e449] /home/hfarazi/Test/QT/Test-build-desktop/Test[0x80604d5] /home/hfarazi/Test/QT/Test-build-desktop/Test[0x8049205] /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0x3d6113] /home/hfarazi/Test/QT/Test-build-desktop/Test[0x8049351] ======= Memory map: ======== 00219000-002f7000 r-xp 00000000 07:00 527926 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16 002f7000-002f8000 ---p 000de000 07:00 527926 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16 002f8000-002fc000 r--p 000de000 07:00 527926 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16 002fc000-002fd000 rw-p 000e2000 07:00 527926 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16 002fd000-00304000 rw-p 00000000 00:00 0 00339000-00357000 r-xp 00000000 07:00 266017 /lib/i386-linux-gnu/ld-2.13.so 00357000-00358000 r--p 0001d000 07:00 266017 /lib/i386-linux-gnu/ld-2.13.so 00358000-00359000 rw-p 0001e000 07:00 266017 /lib/i386-linux-gnu/ld-2.13.so 003a2000-003b9000 r-xp 00000000 07:00 273114 /lib/i386-linux-gnu/libpthread-2.13.so 003b9000-003ba000 r--p 00016000 07:00 273114 /lib/i386-linux-gnu/libpthread-2.13.so 003ba000-003bb000 rw-p 00017000 07:00 273114 /lib/i386-linux-gnu/libpthread-2.13.so 003bb000-003bd000 rw-p 00000000 00:00 0 003bd000-00535000 r-xp 00000000 07:00 273100 /lib/i386-linux-gnu/libc-2.13.so 00535000-00537000 r--p 00178000 07:00 273100 /lib/i386-linux-gnu/libc-2.13.so 00537000-00538000 rw-p 0017a000 07:00 273100 /lib/i386-linux-gnu/libc-2.13.so 00538000-0053b000 rw-p 00000000 00:00 0 00777000-0079f000 r-xp 00000000 07:00 273104 /lib/i386-linux-gnu/libm-2.13.so 0079f000-007a0000 r--p 00028000 07:00 273104 /lib/i386-linux-gnu/libm-2.13.so 007a0000-007a1000 rw-p 00029000 07:00 273104 /lib/i386-linux-gnu/libm-2.13.so 00bf7000-00bf8000 r-xp 00000000 00:00 0 [vdso] 00df3000-00e0f000 r-xp 00000000 07:00 262077 /lib/i386-linux-gnu/libgcc_s.so.1 00e0f000-00e10000 r--p 0001b000 07:00 262077 /lib/i386-linux-gnu/libgcc_s.so.1 00e10000-00e11000 rw-p 0001c000 07:00 262077 /lib/i386-linux-gnu/libgcc_s.so.1 08048000-08075000 r-xp 00000000 07:00 401931 /home/hfarazi/Test/QT/Test-build-desktop/Test 08075000-08076000 r--p 0002c000 07:00 401931 /home/hfarazi/Test/QT/Test-build-desktop/Test 08076000-08077000 rw-p 0002d000 07:00 401931 /home/hfarazi/Test/QT/Test-build-desktop/Test 082ba000-082db000 rw-p 00000000 00:00 0 [heap] b7600000-b7621000 rw-p 00000000 00:00 0 b7621000-b7700000 ---p 00000000 00:00 0 b77f4000-b77f8000 rw-p 00000000 00:00 0 b780a000-b780d000 rw-p 00000000 00:00 0 bff44000-bff65000 rw-p 00000000 00:00 0 [stack] could you help me finding the error! and as it is a company project i could not easily send the code. thanx in advance.
ithink the problem is in this class , an idea?
#define NOT_VALID NULL #define STACK_INITIAL_ALLOC 10 #define STACK_CHUNK_ALLOC 10 template<class T> class stack { public: stack() : value(0), length(0), allocated(0) { } stack(const T &value) : value(0), length(0), allocated(0) { push(value); } ~stack() { if (value) delete [] value; } void push(const T &_value) { if (length == allocated) allocate(); // Allocate more memory value[length++] = _value; } T &pop() { if (length > 0) { //shrink(); length--; return value[length]; } } T &peak() { if (length > 0) return value[length - 1]; //else // throw runtime_error("stack empty"); } // Return the number of length in the stack size_t count() const { return length; } size_t get_allocated() const { return allocated; } private: T *value; // The actual stack size_t length; // Number of length in stack size_t allocated; // Allocated length in stack void copy(T *from, T *to) { for (size_t i = 0; i < length; i++) *to++ = *from++; } void allocate() { if (value == 0) { allocated = STACK_INITIAL_ALLOC; value = new T[allocated]; } else { // We need to allocate more memory size_t new_allocated = allocated + STACK_CHUNK_ALLOC; T *new_value = new T[new_allocated]; // Copy from old stack to new stack copy(value, new_value); // Delete the old value delete [] value; allocated = new_allocated; value = new_value; } } // Shrink the stack, if lots of it is unused void shrink() { // The limit which the number of length must be lower than size_t shrink_limit = allocated - STACK_CHUNK_ALLOC * 2; // Do not shrink if we will get lower than the initial allocation (shrink_limit > STACK_INITIAL_ALLOC) if (shrink_limit > STACK_INITIAL_ALLOC && length < shrink_limit) { // We can shrink the allocated memory a little size_t new_allocated = allocated - STACK_CHUNK_ALLOC; T *new_value = new T[new_allocated]; copy(value, new_value); delete [] value; value = new_value; allocated = new_allocated; } } }; 
malloc/new) and you write outside of the boundaries. I suggest you check things like loops that by mistake loops to something likei <= upper_limitinstead ofi < upper_limit.