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Thread: Number of commas

  1. #1
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    Number of commas

    How to find number of commas(') in a given Cstring variable

  2. #2
    VictorN's Avatar
    VictorN is offline Super Moderator Power Poster
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    Re: Parse CString

    Just use Find in a loop until the end of string
    Victor Nijegorodov

  3. #3
    2kaud's Avatar
    2kaud is online now Super Moderator Power Poster
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    Re: Number of commas

    Consider:

    Code:
    #include <atlstr.h>
    #include <stdio.h>
    
    int count(const CString& cstr, char ch)
    {
    	int cnt = 0;
    
    	for (int pos = -1; (pos = cstr.Find(ch, pos + 1)) >= 0; ++cnt);
    
    	return cnt;
    }
    
    int main()
    {
    	const CString tst = ",qw,asd,zxc,";
    
    	printf("Number of ',' in '%s' is: %i\n", tst.GetString(), count(tst, ','));
    }
    giving:

    Code:
    Number of ',' in ',qw,asd,zxc,' is: 4
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++17 Compiler: Microsoft VS2019 (16.7.7)

  4. #4
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    Re: Number of commas

    thanks a lot..

    Just in continuation with this.. how to trim a given cstring by removing all the double quotes " character in it.

    example: "qw"as"dzxc" should become qwasdzxc

  5. #5
    2kaud's Avatar
    2kaud is online now Super Moderator Power Poster
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    Re: Number of commas

    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++17 Compiler: Microsoft VS2019 (16.7.7)

  6. #6
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    Re: Number of commas

    Thanks for the response..

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