malloc

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How to troubleshoot crashes in malloc

I have a large body of legacy code that I inherited. It has worked fine until now. Suddenly at a customer trial that I cannot repro开发者_JAVA百科duce inhouse, it crashes in malloc. I think that I nee[详细]

2023-04-05 20:56 分类：问答
Was I just lucky that malloc returned a zero-filled buffer?

I tried running the code below: int main(){ char *ptr = (char*)malloc(sizeof(char)*20); ptr[5] = \'W\'; ptr[0] = \'H\';[详细]

2023-04-05 12:05 分类：问答
New vs. Malloc, when overloading New

I\'m overloading new and delete to implement my own smal开发者_StackOverflow社区l-objects/thread-safe allocator.[详细]

2023-04-05 10:12 分类：问答
problems with data entry and malloc in C

I\'m new to C and I\'m having a small problem with my code: int i, n; int *arr; while(n != 0) { scanf(\"%d\", &n);[详细]

2023-04-05 04:08 分类：问答
convert c++ libraries to objective-c [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari[详细]

2023-04-05 01:27 分类：问答
issue in putting custom fields in struct malloc_chunk

i am trying to put a head-tag and a foot tag inside struct malloc_chunk, like this: struct malloc_shunk {[详细]

2023-04-04 17:44 分类：问答
When should I use free() in C?

The code works as it is supposed to, though it never frees the memory allocated by malloc(). I have tried to free memory in any place that I can, but no matter where I do it, it breaks the program. S[详细]

2023-04-04 05:25 分类：问答
Inside Dynamics memory management

i am student and want to know more about the dynamics memory management. For C++, calling operator new() can allocate a memory block under the Heap(Free Store ). In fact, I have not a full picture how[详细]

2023-04-04 02:43 分类：问答
What is wrong with realloc?

I have the following code which you can try using c99 filename.c; ./a.out #include <stdio.h> #include <stdlib.h>[详细]

2023-04-04 01:55 分类：问答
How to avoid dynamically allocating memory to save time?

I have a function which is called many times in my project: void foo(int bar) { char arr[1024]; //...do some operation on arr according to value of bar[详细]

2023-04-03 20:52 分类：问答