Amount of heap memory reserved by a procces

[jose luis fernandez diaz]

Hi,

The program below gets 1 byte of heap memory:

int main(void)
{
char *ptr = new char;
}

Is there a C system call that give the amount of memory reserved by a process ?

Thanks,
Jose Luis.

 

[John Harrison]

Hi,

The program below gets 1 byte of heap memory:

To be specific, one byte of useable heap memory. It might actually reserve
more.

int main(void)
{
char *ptr = new char;
}

Is there a C system call that give the amount of memory reserved by a

process ?

No. Not in standard C, (or C++ either).

Thanks,
Jose Luis.

john

 

[Michael Groys]

To be specific, one byte of useable heap memory. It might actually reserve
more.



process ?

No. Not in standard C, (or C++ either).

In VC there is function:
size_t _msize(void *memblock)
It returns size of allocated memory block.
It works with malloc/calloc/realloc.
Still it may return more then 1 in your example.
I assume that it also works with new although no guarantee.