I. Possible combinations:
(1) const char * P
(2) Char const * P
(3) char * const P(4) const char ** P
(5) Char const ** P
(6) char * const * P
(7) Char ** const P
Of course, there are several cases of inserting a const in (5), (6), and
One, possible combinations:(1) Const CHAR*P(2) Char Const*p(3) Char *const p(4) const char **P(5) Char Const**p(6) Char *const *p(7) Char **const pOf course, in (5), (6), (7) and then insert a const in a number of cases, but the analysis of the
Constraints for assigning values according to ansi c:
1. Both operands are pointers to compatible types with or without delimiters.
2. the type pointed to by the Left pointer must have all the qualifiers of the type pointed to by the right
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.
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,
Original article address:Convert: char *,
(1) OverviewString and cstring are both string template classes. string is a string class defined by the standard template class (STL) and has been
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
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.
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