Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
140 views
in Technique[技术] by (71.8m points)

c++ - what does this mean char (*(*a[4])())[5]?

Hi I came across the question in "Test your skills in c++".

Please let me know what does it mean with an example?

Edited Section: Sorry for the extra parenthesis, edited & removed.

char (*(*a[4])())[5]
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Following the spiral rule (as linked to by chris), and starting with the identifier:

a

...is...

a[4]

...an array of 4...

*a[4]

...pointers to...

(*a[4])()

...a function taking no parameters...

*(*a[4])()

...returning pointer to...

(*(*a[4])())[5]

...an array of five...

char (*(*a[4])())[5]

...chars.

Sidenote: Go give the architect who came up with this a good dressing-down, then find the programmer who wrote this code without a comment explaining it and give him a good dressing-down. In case this was given to you as a homework, tell your teacher that he should have instructed you on how to use cdecl instead, or how to design code in a way that it doesn't look like madman scrawlings, instead of wasting your time with this.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

Just Browsing Browsing

[3] html - How to create even cell spacing within a

2.1m questions

2.1m answers

60 comments

57.0k users

...