Limit to a "char *a=new char[sizeMax]"

[Skyboarder]

I notice that when I use the code:

int size = 276447234; // or bigger
char *a=new char[size];
SendCommand(line, a, size); // fct that writes a given output in "a" 

there is a size limit of 276447233 attributed to my int size.

(e.g. When I enter int size = 276447239 and display the size after have used my pointer the way I wanted, I notice its size has been decreased to this 276447233...)

Would anybody know why?
Thank you

Sky

[Athar]

Probably UB. Post a full compilable example that has the problem you're describing.

[Skyboarder]

What does UB mean?
I'm working on a c++ pipe program communicating with a thermodynamical software, so it won't compile if you don't have the software, but I'll see if I can get an easy example out of this.
Thanks though

Sky

[Athar]

UB means undefined behavior. Basically, you have an error somewhere.

[vlad from moscow]

It is interesting to see how did you determine that the size iwas truncated?