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5
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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GM
说明: matlab灰色预测的通用算法程序,很好的套用模版(universal algorithm for Matlab gray prediction procedure, apply the template)
- 2012-08-20 18:04:11下载
- 积分:1
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N-Rcalculation
电力系统潮流计算程序,采用牛顿拉夫逊法对3节点系统进行仿真(load flow calculation of 3 point system)
- 2013-01-17 15:56:05下载
- 积分:1
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fastica
说明: 盲源分离,基于最大化负熵的盲源分离方法;
算法及调试(blind source separation)
- 2020-01-15 09:43:19下载
- 积分:1
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geoFunctions
Gps geo functions include M files about delay model
- 2010-08-05 15:20:42下载
- 积分:1
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rs_cnv
由RS码、卷积码构成的级联码,结合交织技术,用于信道编码(RS code and convolution code, combine with interleaving, use for channel coding. )
- 2009-03-10 11:01:42下载
- 积分:1
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Chirp_2D
二维线性调频信号仿真,分为不加窗的和加窗的。(Simulation of chirp signal in two-dimention)
- 2009-11-26 21:16:23下载
- 积分:1
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extractexp_by_Uilmo_Brunno
Código limpeza de dados expúrios de mamografias
- 2015-01-18 03:18:18下载
- 积分:1
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pca_procedur
说明: 一个对统计数据做主成分分析的小程序,在Matlab环境下可以对需要统计的数据快速得到其个主成分分量。(An analysis of statistical data elements applet call the shots in the Matlab environment for statistical data on the need to quickly get the two principal components.)
- 2011-03-05 17:08:08下载
- 积分:1
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juanji_example
matlab实现卷积码,viterbi译码,总结了常用的卷积码编码多项式,以及完整的仿真程序(matlab convolutional codes, viterbi decoding, summed used polynomial convolution coding, as well as a complete simulation program)
- 2013-01-05 21:46:41下载
- 积分:1