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#include "precompiled.h"
#ifdef CHECKED
const int PATTERN = 0xAA;
void *mynew(size_t s)
{
uint8_t *ptr = (uint8_t *)malloc(s + 8);
if(ptr)
{
memset(ptr, PATTERN, s + 8);
return ptr + 4;
} else
{
abort();
}
return NULL;
}
void *operator new(size_t s) //throw(std::bad_alloc)
{
return mynew(s);
}
void *operator new[](std::size_t s) //throw(std::bad_alloc)
{
return mynew(s);
}
void *operator new(size_t s, const std::nothrow_t &) throw()
{
return mynew(s);
}
void *operator new[](size_t s, const std::nothrow_t &) throw()
{
return mynew(s);
}
void mydelete(void *p)
{
if(p)
{
uint8_t *realp = (uint8_t *)p - 4;
#ifdef VMP_GNU
size_t s = malloc_usable_size(realp);
#else
size_t s = _msize(realp);
#endif
uint8_t *endp = realp + s;
for(int i = 0; i < 4; i++)
{
bool needAbort = false;
if(realp[i] != PATTERN)
{
std::cout << "Heap underflow at " << p << std::endl;
needAbort = true;
}
if(*--endp != PATTERN)
{
std::cout << "Heap overflow at " << p << std::endl;
needAbort = true;
}
if(needAbort)
{
abort();
}
}
memset(realp, 0x55, s);
free(realp);
}
}
void operator delete(void *p) throw()
{
mydelete(p);
}
void operator delete[](void *p) throw()
{
mydelete(p);
}
void operator delete[](void *p, const std::nothrow_t &) throw()
{
mydelete(p);
}
void operator delete(void *p, const std::nothrow_t &) throw()
{
mydelete(p);
}
#endif
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