C++/ROOT Memory Allocation?

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1. UNIX for Dummies Questions & Answers

Memory allocation problem

I am using ubuntu. I have written a program to calculate prime factors. it works perfectly fine till entered number is less than 9989 (or so ) but when one enters a number higher than that, for example 15000, it does not work. Can anyone guide me whats the problem ? although new codes are welcome,...

2. Programming

memory allocation for string in C

hi in the following code, how the memory is allocated for a1 which holds the values of a2 after cpy function call. #include <stdio.h> #include <string.h> void cpy(char* d, const char* s){ while(*d++=*s++); } main(){ char* a1; char* a2="done"; cpy(a1,a2); ...

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hello all.. i'm a beginner in shell scripting. I need to know what is really happening when we are creating a variable in shell scripting? how memory is allocated for that variable?

4. Programming

Memory Allocation Query

When we dynamically allocate the memory say 100 integers say int *x = new int(1000); then does entire chunk of memory gets allocated at once after the completion of the statement? I mean will the the concept of page fault come into picture over here?

5. Programming

Dynamic Memory Allocation

Hello Guys I have a small confusion in the dynamic memory allocation concept. If we declare a pointer say a char pointer, we need to allocate adequate memory space. char* str = (char*)malloc(20*sizeof(char)); str = "This is a string"; But this will also work. char* str = "This...

6. Programming

Memory allocation in C

Hi Experts I need some help in static memory allocation in C. I have a program in which I declared 2 variables, one char array and one integer. I was little surprised to see the addresses of the variables. First: int x; char a; printf("%u %u\n', &x, a); I got the addresses displayed...

7. Programming

Is there a problem with the memory allocation???

I have a scenario like the client has to search for the active server.There will be many servers.But not all server are active.And at a time not more than one server will be active. The client will be in active state always i.e, it should always search for an active server until it gets one.I...

8. HP-UX

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Hi all, I have a HP-UX Server with 4 gigabytes of physical RAM. When I use the 'Glance' utility to see what my memory utilization is, my memory usage shows up maxed out at 99%. I shut off all the known processes that I'm running on that box and the memory utilization is still at 78% (with Swap...

9. UNIX for Advanced & Expert Users

threads and memory allocation

Hello! First of all, forgive me for bad English. When I starts new thread (pthread_create), system allocates some memory for it (for example, for thread's stack). I wonder when does it deallocate this memory? The problem is that I have a program which sometimes creates new threads and sometimes...

10. UNIX for Dummies Questions & Answers

memory allocation

I would like to know how I could allocate some more memory to a process. Please note that I am not the root user.

Programming