Count the number of tabs in a string

Question

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How would you count occurences of a string within a string (C#)?

I am reading a file in line by line and need to count the number of tabs that each string contains. How can I get a count of the tabs i.e. \t from the string.

Thanks for your help

score 9 · Answer 1 · answered Jun 24 '11 at 20:40

9

uint howManyTabs(string s) {
    return (uint)s.Count(ch => ch == '\t');
}

answered Jun 24 '11 at 20:40

Brennan Vincent

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Why cast to uint? – dtb Jun 24 '11 at 20:43
Because it has to be a non-negative integer? – ChrisF Jun 24 '11 at 20:46
3

Because the function returns `uint`... – Brennan Vincent Jun 24 '11 at 20:46
Why does the function return uint and not simply int? – dtb Jun 24 '11 at 20:52
1

@dtb, to make it explicit that the return value is never less than zero. That's what an unsigned int is for, after all. As far as I understand, things like Count return int in order to be CLS compliant, which is probably not an issue here. – Brennan Vincent Jun 24 '11 at 20:54

Count the number of tabs in a string

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