sizeof

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Operator sizeof() in C

Consider the program main() { printf(\"%d %d %d\",sizeof(\'3\'开发者_StackOverflow),sizeof(\"3\"),sizeof(3));[详细]

2023-01-09 08:59 分类：问答
Is there a bit-equivalent of sizeof() in C?

Sizeof() doesn\'t work when applied to bitfields: # cat p.c #include<stdio.h> int main( int argc, char **argv )[详细]

2023-01-08 09:00 分类：问答
On which platforms/compilers sizeof(short) is NOT 2?

Tried to look for that and didn\'t find an answer. Can anyone help? Thanks.开发者_如何学运维There are DSPs that don\'t allow for integers of less than 32 bits. See this for instance.[详细]

2023-01-06 03:45 分类：问答
Allocating char array using malloc

Considering the following line: char *p = malloc( sizeof(char) * ( len + 1 ) ); Why is sizeof(char) used? It\'s not necessary, is it? Or Is it just a matt开发者_运维技巧er of style?[详细]

2023-01-04 21:35 分类：问答
Why is −1 > sizeof(int)?

Consider the following code: template<bool> class StaticAssert; template<> class StaticAssert<true> {};[详细]

2023-01-04 16:18 分类：问答
Question about sizeof. I want to reverse bits in number

What will be equivalent of this in Java? for (i = (sizeof(num)*8-1); i; i--) 开发者_开发技巧 num is given number, not array. I want to reverse bits in integer.Java does not have sizeof. Arrays have[详细]

2023-01-02 18:06 分类：问答
Why do structures need to be told how big they are?

I\'ve noticed that in c/c++ a lot of Win32 API structs need to be told how big they are. i.e someStruct.pbFormat = sizeof(SomeStruct)开发者_JAVA技巧[详细]

2023-01-01 20:28 分类：问答
Buffer size: N*sizeof(type) or sizeof(var)? C++

I am just starting with cpp and I\'ve been following different examples to learn from them, and I see that buffer size is set in different ways, for example:[详细]

2023-01-01 05:33 分类：问答
Is using %zu correct syntax in a printf format string as shown in some C code found on Wikipedia?

I just found this code on Wikipedia. Link: http://en.wikipedia.org/wiki/Sizeof#Use The code: /* the following code illustrates the use of sizeof[详细]

2023-01-01 04:49 分类：问答
Struct size containing vector<T> different sizes between DLL and EXE

I have this situation where an EXE program imports a DLL for a single function call. It works by passing in a custom structure and returning a different custom structure. Up till now it\'s worked fine[详细]

2022-12-31 18:46 分类：问答