Find a length of string/array without length function

2 次查看（过去 30 天）
KKR
KKR 2012-2-15
编辑： Matt J 2013-10-13
Hi All,
Hope everyone is doing great. I have minor question, I am trying to write a simple function to find a length of string/array, of course without using length function of MATLAB.
I am trying to find if there is any condition related to error message index bound, then I can use it in loop. Any other ideas are more than welcome.
Thank you in advance.

请先登录，再回答此问题。

采纳的回答

James Tursa
James Tursa 2012-2-15
I have no idea what the point of this question is, but do you mean something like this?
try
k = 1;
while( true )
str(k);
k = k + 1;
end
catch
strlength = k - 1;
end
  1 个评论
KKR
KKR 2012-2-16
Hi James,
I have been given an exercise (or else I would never think of something like this...).
This is what I tried:
% i=1;
% while ~isempty(strop(i))==1
% i = i+1;
% end
% ln = i-1;
The problem is it gets index bound error. I am not sure how is it different than what you said. Please let me know, if you see where am I missing out?
Thank you for your help.

请先登录，再进行评论。

更多回答（2 个）

Sean de Wolski
Sean de Wolski 2012-2-15
str = 'hello world!';
max(size(str))
  2 个评论
KKR
KKR 2012-2-15
Sean,
This works perfect. But, I dont think I can even use that. I would like to write really basic code, with looping to find the number of elements.
Thank for your help, nonetheless.
Kaushal

请先登录，再进行评论。

bym
bym 2012-2-16
a variant on your code
str = 'hello world';
c =0;
while ~isempty(str)
c = c+1;
str(1)=[];
end
c

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by