sizeof

相关标签：javascript jquery android 多少钱 iPhone

about power of sizeof operator in C++

I am reading Modern C+开发者_JAVA百科+ design. It was mentioned about sizeof opeator as following description. Following paragraph is explained from generic programming point of view.[详细]

2023-02-13 19:12 分类：问答
I can't use sizeof(struct hsearch_data) from <search.h>

I\'m working on an open-source project, and there is an hash_table that I need to change for a more efficient hash_table, so, I\'m trying[详细]

2023-02-12 19:27 分类：问答
Why the sizeof(bool) is not defined to be one, by the Standard itself?

Size of char, signed char and unsigned char is defined to be 1 byte, by the C++ Standard itself. I\'m wondering why it didn\'t define the sizeof(bool) also?[详细]

2023-02-12 15:06 分类：问答
Easiest way to determine sizeof( double ) and sizeof( int ) from Ruby?

For unpacking complex binary strings with mixed doubles and integers using Ruby\'s String.unpack I need to determine offsets within the binary string. Commonly, doubles are 8 bytes and integers are 4[详细]

2023-02-12 03:52 分类：问答
Why struct size is multiple of 8 when consist a int64 variable In 32 bit system

In C Programming language and I use 32 bit system, I have a struct and this开发者_运维技巧 struct size is multiple of four.[详细]

2023-02-11 17:29 分类：问答
C -> sizeof string is always 8

#include \"usefunc.h\" //don\'t worry about this -> lib I wrote int main() { int i; string given[4000], longest = \"a\"; //declared new typdef. equivalent to 2D char array[详细]

2023-02-09 04:14 分类：问答
What is size for the sizeof operator in c?

In recent I was attend one Interview on \"SureSoft Technology\"...... In that interview, they ask one question lik \"What is size for the sizeof operator in c? \"[详细]

2023-02-08 07:31 分类：问答
Is sizeof(bool) defined in the C++ language standard?

I can\'t find an answer in the standard do开发者_开发知识库cumentation. Does the C++ language standard require sizeof(bool) to always be 1 (for 1 byte), or is this size implementation-defined?sizeof(b[详细]

2023-02-08 07:28 分类：问答
sizeof(""+0) != sizeof(char *) Bug or undefined behaviour?

The following C program: #include <stdio.h> int main(void) { printf("%u %u %u\\n",sizeof "",sizeof(""+0),sizeof(char *));[详细]

2023-02-07 17:29 分类：问答
Element count of an array in C++

Let\'s say I have an array arr. When would the following not give the number of elements of the array: sizeof(arr) / sizeof(arr[0])?[详细]

2023-02-07 17:04 分类：问答