memset

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iphone memset issue

I defined a struct in my header file: #import <UIKit/UIKit.h> typedef struct ORIGINAL_QUOTA_DATA_tag[详细]

2023-04-12 11:08 分类：问答
Is memset() more efficient than for loop in C?

Is memset()more efficient than for loop. Considering this code: char x[500]; memset(x,0,sizeof(x)); And this one:开发者_运维技巧[详细]

2023-04-04 01:41 分类：问答
Additional memset() causes system call open() to fail

I\'ve created a node in /dev by following the tutorial here (chardev.c), I tried to access the device in /dev/chardev I created by using the following code :[详细]

2023-04-02 19:31 分类：问答
Why does "memset(arr, -1, sizeof(arr)/sizeof(int))" not clear an integer array to -1?

Is it not possible to 开发者_运维百科use memset on an array of integers? I tried the following memset call and didn\'t get the correct integer values in the int array.[详细]

2023-03-31 12:03 分类：问答
Why can it be dangerous to use this POD struct as a base class?

I had this conversation with a colleague, and it turned out to be interesting. Say we have the following POD class[详细]

2023-03-28 22:05 分类：问答
Dynamically storing information from a file using C

I\'m new to C and trying to learn a few things. What I\'m trying to do is read in a file and store the information. Since the format will be a CSV, the plan is to read in each character, determine if[详细]

2023-03-27 23:16 分类：问答
Concatenate with Memcpy

I\'m trying to concatenate two string and I cannot use strcpy and strcat, so I\'m trying to do this through memcopy. However, on the third statement the memcpy it is not adding on to the con开发者_JAV[详细]

2023-03-25 07:07 分类：问答
memset on a statically-allocated zlib Byte array in a library crashes an Objective-C++ program

I\'m writing a library that uses a statically-allocated C-array of type Byte, defined in zlib.h.I\'m finding that the code crashes on a call to memset.The complete code looks like this:[详细]

2023-03-22 14:55 分类：问答
How can i set same int value to an array of ints

I have a variable: unsigned int* data = (unsigned int*)malloc(height * widt开发者_如何学Goh) I want to set same int to all array values.[详细]

2023-03-18 21:27 分类：问答
memset after malloc [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]

2023-03-16 10:37 分类：问答