Thread: problem with new operator

Well I don't know where you are stuck but are you doing something like this:

Code:

class myClass {
    void *operator new (size_t size) {
        return malloc(size*sizeof(myClass));
    }
};

What kind of problems are you having??
error, you are not getting the result you want or what?

allocating desired number of rooms in a hotel manaement system

U R trying to allocate memory for your # of rooms.
An example might be:

Code:

#include <malloc.h>
#include <memory.h>

class Blanks
{
public:
    Blanks(){}
    void *operator new( size_t stAllocateBlock, char chInit );
};
void *Blanks::operator new( size_t stAllocateBlock, char chInit )
{
    void *pvTemp = malloc( stAllocateBlock );
    if( pvTemp != 0 )
        memset( pvTemp, chInit, stAllocateBlock );
    return pvTemp;
}

For discrete objects of type Blanks, the global operator new function is hidden. Therefore, the following code allocates an object of type Blanks and initializes it to 0xa5:

Code:

int main()
{
    Blanks *a5 = new( 0xa5 ) Blanks;

    return a5 != 0;
}

The argument supplied in parentheses to new is passed to Blanks::operator new as the chInit argument. However, the global operator new function is hidden, causing code such as the following to generate an error:

Blanks *SomeBlanks = new Blanks;

Pls let me know if this helps!
;)

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