《The Practice of Programming》笔记

Programming sytle:

Name: informative, concise, memorable, pronounceable if possible

Use descriptive names for globals:

 

int npending = 0;

short names for locals: npoints , not numberOfPoints
i, j loop indices, p, q for pointers, s, t for strings
begin with p for pointer, initial capital letters for Globals, all capitals for CONSTANS

Use active names for functions:

date.getTime()

Fuction that return a boolean value should be named so that the return value is unambiguous

? if (checkoctal(c))
if (isoctal(c))

 

Magic numbers are the constants, array sizes, character positions, conversion factors, and other literal numeric values that appear in programs

 

enum {
    MINROW    = 1,        /* top edge */
    MINCOL    = 1,        /* left edge */
    HEIGHT    = MAXROW -4    /* height of bars */
};

Define numbers as constants, not marcros
C++:const int MAXROW = 24;
C: enum {MAXROW = 24};

Don't belabor the obvious
Comment functions and global data