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POHow do I change this vector function to accept more elements?
 

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  1. POHow do I change this vector function to accept more elements?
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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/236129/splitting-a-string-in-c">Splitting a string in C++</a> </p> </blockquote> <p>I have this vector function from one of the answers I got on my question</p> <pre><code>vector&lt;string&gt; split(const string&amp; s, char delim) { vector&lt;string&gt; elems(2); string::size_type pos = s.find(delim); elems[0] = s.substr(0, pos); elems[1] = s.substr(pos + 1); return elems; } </code></pre> <p>However, it only accept 2 elements. How do I modify it to accept based on how many delimiter s exist in the string s?</p> <p>e.g if I have this:</p> <pre><code>user#password#name#fullname#telephone </code></pre> <p>sometime the size might differ.</p> <p>How can I make this function flexible to work no matter how many elements, and able to split like this function above?</p> <p><strong>Just to further explain my problem:</strong></p> <p>What i wanna achieve is the capability to split using this vector function, of the same delimiter to N size instead of fixed at size 2.</p> <p>This function can only split maximum 2 element in a string, more than that result in Segmentation core dump</p> <p>as previously i only have needs for usage like </p> <pre><code>user:pass </code></pre> <p>now i added more attribute so i need to be able to split </p> <pre><code>user:pass:name:department </code></pre> <p>which x[2] and x[3] will return respectively name and department</p> <p>they all will be using same delimiter.</p> <p><strong>Further Update:</strong></p> <p>I tried using this function provided by 1 of the answer below</p> <pre><code>vector&lt;string&gt; split(const string&amp; s, char delim) { bool found; vector&lt;string&gt; elems; while(1){ string::size_type pos = s.find(delim); if (found==string::npos)break; elems.push_back(s.substr(0, pos)); s=s.substr(pos + 1); } return elems; } </code></pre> <p>and i get some error</p> <pre><code>server.cpp: In function ‘std::vector&lt;std::basic_string&lt;char&gt; &gt; split(const string&amp;, char)’: server.cpp:57:22: error: passing ‘const string {aka const std::basic_string&lt;char&gt;}’ as ‘this’ argument of ‘std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp; std::basic_string&lt;_CharT, _Traits, _Alloc&gt;::operator=(const std::basic_string&lt;_CharT, _Traits, _Alloc&gt;&amp;) [with _CharT = char, _Traits = std::char_traits&lt;char&gt;, _Alloc = std::allocator&lt;char&gt;, std::basic_string&lt;_CharT, _Traits, _Alloc&gt; = std::basic_string&lt;char&gt;]’ discards qualifiers [-fpermissive] </code></pre>
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    1. COno, it's not a duplicate of *that* question. no doubt someone else has asked the same question. but until such a question is found, please refrain from voting to close on the basis of "i don't understand the question"
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      1. POHow do I change this vector function to accept more elements?
      1. USCheers and hth. - Alf
    2. CO@close-voters: what's the hurry? do something positive instead!
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      1. POHow do I change this vector function to accept more elements?
      1. USCheers and hth. - Alf
    3. CONot sure what you want to do. Do you want to have a collection of admissible delimiters so splitting `user#password@name@fullname` with the delimiter set `{#@}` would result in 4 elements? Please clarify.
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