1 The nature of the array
An array is a collection of multiple elements that are distributed in memory in an address-connected cell, so that you can access elements of different cells by its subscript.
2 pointers.
A pointer is also a
There are many C procedures, in the communication with the new members of the project found that generally for Char *s1 and Char s2[] know there are misunderstandings (think no difference), resulting in sometimes "difficult to understand" error. A
Programming has been a headache recently. This type of conversion can be done by knowing that it can be switched, but it is always hard to remember. I will keep searching through the Internet and summarize it here. For future convenience, of course,
Ansi c provides three types of characters: Char, signed Char, and unsigned char. There are only two types of characters like short and INT (INT is unsigned int by default ).
Each of the three occupies 1 byte. Therefore:
The value range of signed
About wchar_t
In the C ++ standard, wchar_t is a wide character type. Each wchar_t type occupies 2 bytes and has a 16-bit width. Wchar_t is required for the representation of Chinese characters. Char, we all know, occupies a byte, 8-bit width.
Reprinted from: http://kasonpt.blog.163.com/blog/static/169099697201171662830731/
Wchar_t *, wchar_t, wchat_t array, Char, char *, char array, STD: String, STD: wstring, cstring ....# Include // You must use MFC to use cstring and cannot contain #
http://blog.163.com/digoal@126/blog/static/163877040201271195312138/
This article tests the environment: x86-64 bit architecture server CentOS x64 5.x gcc version 4.1.2 20080704Pointers and arrays are C's more difficult to understand the knowledge
the source code found on the internet is printed by Using VC, but there is a bug. I have added comments. If someone can solve these bugs, please let me know. Code :
/* Function: print the local files that can be opened by any browser and implement
Reprint Address: http://hi.baidu.com/thewillreigns/blog/item/67e665c4296e69c038db492d.html
Char and unsigned char are unsignedBoth are used words as words that are indistinguishable, but when integers are used differently:Char integer range is-128
# Include
// You must use MFC to use cstring and cannot contain
# DEFINE _ afxdll
# Include
Using namespace STD;
//----------------------------------------------------------------------------------
// Convert single-byte char * to wide-byte
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