A summary of a book

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In ANSI C, the const modifier is globally visible, such as a const variable in a header file

C + + defaults all const adornments to static

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The C-language bool was added after C99.

const char *p = ""; P is point to const char

*p is char;

const modifier char;

char Const *P = ""; P is point ro char const

*p is char const;

char * const p; Const P is point to char;; ((*P) (* const P))

* (const p) is char;

Bjarne a mnemonic method in his C + + programming language:

Read a statement from right to left.

char * const CP; (* read into pointer to) CP was a const pointer to Char

const char * p; P is a pointer to const char;

Char const * p; Ibid. because there are no const* operators in C + +, const can only belong to the preceding type.

The C + + standard stipulates that the Const keyword is placed before the type or variable name is equivalent.

Order

Base class constructs a member construction construct

Analysis of constitutive basis of constituent members

Strange.

void &a = 0; Err

Double &r = 0; Ok? I tried not to be OK.

int *p; int * &RP = P;RP = reference OK for a;//pointer
int a[1]; int & Ra[10] = a;//No reference to the array

No referenced reference, no reference pointer;

int & Rs[1] = A; Err

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Reserved words do not necessarily appear in the syntax.

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(++i) + (++J)
The calculation of this expression has two side-effects:
I self-increment 1;
J self-increment 1;
But which one happens first? The answer is: any answer is wrong.

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For example, the following expression, as specified by the standard, does not define the result:
(i++) + (i++)

A summary of a book