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一道程序编译顺序的考题,涉及到函数调用的先后顺序及运算符号的优先级等问题。下面我展开给你讲。
C的程序编译总是从main函数开始的,这道题的重点在“fun((int)fun(a+c,b),a-c)) ”语句。
系统首先要确定最外层 fun()函数的实参,第一个参数的确定需要递归调用fun()函数(不妨称其为内层函数)。内层函数的两个参数分别为x=a+b=2+8=10、y=b=5,执行函数体x+y=10+5=15,于是得外层函数的参数x=15。其另一个参数y=a-c=2-b=-6,再次执行函数体,得最终返回值x+y=15+(-6)=9。 (Compiling together the sequence of test procedures, involving the sequence of function calls and operator symbols, such as the priority problem. Now I give you to start speaking. Procedures for C compiler always start from the main function and at这道题the focus of " fun ((int) fun (a+ c, b), ac)) " statement. System must first determine the most outer layer of fun () function of real parameters, the first parameters of recursive calls required fun () function (may be called the inner function). Inner function separately for the two parameters x = a+ b = 2+8 = 10, y = b = 5, to execute the function body x+ y = 10+5 = 15, then the outer function parameters were x = 15 . Its another parameter y = ac = 2-b =- 6, once again to execute the function body may eventually return the value of x+ y = 15+ (-6) = 9.)
- 2009-03-15 15:36:23下载
- 积分:1
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HCR-Protocol-in-Matlab_By_Rashmi_Ranjan_Sahoo
HCR protocol in MATLAB
- 2014-09-25 14:55:11下载
- 积分:1
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SlidingMenuDemo
MySlidingMenu的用法,滑动可以打开遍侧栏(MySlidingMenu usage, you can open the sliding sidebar times)
- 2014-01-09 15:47:35下载
- 积分:1
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frftlvbo
关于分数阶傅里叶变换的源程序及一些应用,对初学者有很大帮助。(Some applications on the source and Fractional Fourier transform of great help for beginners.)
- 2015-04-01 17:59:05下载
- 积分:1
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LDPC
LDPC编码的matlab实现,好用,利于初学者。(LDPC coding matlab implementation, easy to use, help for beginners.)
- 2010-11-26 05:32:22下载
- 积分:1
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CDMA
CDMA系统的编码和解码的MATLAB源程序(code and decode of CDMA system)
- 2009-06-01 18:14:56下载
- 积分:1
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MATLAB
book about how to use matlab
- 2012-06-15 14:24:41下载
- 积分:1
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PID_MATLAB
先进PID控制及其MATLAB仿真(教材+相关程序),本书从 MATLAB 仿真角度系统地介绍了 PID 控制的基本理论、基本方法和应用技术,是作者多年来从事控制系统教学和科研工作的结晶,同时融入了国内外同行近年来所取得的新成果。(Advanced PID control and MATLAB)
- 2013-12-13 15:43:56下载
- 积分:1
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pingfanggen
数值计算中平方根算法的源程序,采用matlab写的,对数值计算有很大的帮助作用。(Square root algorithm for the numerical calculation of the source, using matlab to write on the numerical calculation of great help.)
- 2013-11-13 23:45:01下载
- 积分:1
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viterbi_trialrun
It works very well in Matlab and is very efficient
- 2013-05-09 05:39:34下载
- 积分:1