Note: C is Microsoft C Compiler. I\'m having trouble with the following code. *Roomsize = (int*)c开发者_如何学编程alloc(sizeof(int),sched->numberOfRooms);
I am trying to allocate a single very large piece of memory (>2.5gb) on a centos 64-bit linux. The hardware has more than 16gb physical memory. However, when I use malloc or calloc, they return null.
gcc 4.5.1 c89 I have written this source code for my better understanding of malloc and calloc. I understand, but just have a few questions.
I\'ve always programmed in Java, which is probably why I\'m so confused about this: In Java I declare a pointer:
Why does calloc take two arguments instead of one like malloc? Specifically, since there is no difference between (or is there?) between the following expressi开发者_开发技巧ons:
Seem to have a memory allocation problem and think it\'s because in my struct, there is a pointer to an array of another struct. However, I\'m not initializing this array and not sure how:
I have a struct which is a node, and another which is a list of these nodes. In the list struct, its an array of nodes, but instead of an array, it\'s a pointer to pointer with a size integer:
A lot of c/malloc()\'s in a for/while/do can consume a lot of time so I am curious if any operating system buffers memory for fast mallocs.
This question already has answers here: Closed 12 years ago. Possible Duplicate: c difference between malloc and calloc
The following code is an example from the NCURSES menu library. I\'m not sure what could be wrong with the code, but valgrind reports some problems. Any ideas...
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