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内容简介:
Presents a complete guide to ANSI standard C language programming. Written by the developers of C, this new version helps readers keep up with the finalized ANSI standard for C while showing how to take advantage of C’s rich set of operators, economy of expression, improved control flow, and data structures. This 2nd edition has been completely rewritten with additional examples and problem sets to clarify the implementation of difficult language constructs. 7 x 9 1/4.
作者简介:
Brian W. Kernighan works in the Computing Science Research Center at Bell Laboratories, Lucent Technologies. He is Consulting Editor for Addison-Wesley’s Professional Computing Series and the author, with Dennis Ritchie, of The C Programming Language.
Dennis Ritchie is a computer scientist notable for his influence on ALTRAN, B, BCPL, C, Multics, and Unix.
原文摘录:
“相对于#define语句来说，它的优势在于常量值可以自动生成。尽管可以声明enum类型的变量，但编译器不检查这种类型的变量中存储的值是否为该枚举的有效值。不过，枚举变量提供这种检查，因此枚举比#define更具优势。此外，调试程序可以以符号形式打印出枚举变量的值”； (查看原文)
Cennial
2 回复
2赞
2012-09-12 15:02:49
—— 引自第1页
If a name that has not been previously declared occurs in an expression and is followed by a left parenthesis, it is declared by context to be a function name, the function is assumed to return an int, and nothing is assumed about its arguments. Furthermore, if a function declaration does not include arguments, as in
double atof();
that too is taken to mean that nothing is to be assumed about the arguments of atof; all parameter checking is turned off. This special meaning of the empty argument list is intended to permit older C programs to compile with new compilers. But it’s a bad idea to use it with new programs. If the function takes arguments, declare them; if it takes no arguments, use void. (查看原文)
RednaxelaFX
1赞
2016-12-20 06:25:56
—— 引自第72页