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Topic: Number of line in a text file
Replies: 12   Last Post: Jan 23, 2013 1:51 PM

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Kirill

Posts: 139
Registered: 3/28/06
Re: Number of line in a text file
Posted: Nov 2, 2006 3:28 PM
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Indeed -- 4.65sec vs former 7.6sec!!!

JWagberg wrote:
> Kirill wrote:
> > while ~feof(fh)
> > ch = fread(fh, chunksize, 'uchar');
> > if isempty(ch)
> > break
> > end

> ...
> > n2 = n2 + sum(ch == char(10));
>
>
> Prepend the 'uchar' with an asterisk, '*uchar', and you can read eight
> times as much with each chunk and the (ch == char(10)) will also speed
> up by a factor five.
>
> /jewa





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