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POterminate called after throwing an instance of 'std::length_error'
 

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  1. POterminate called after throwing an instance of 'std::length_error'
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    <p>this is my first post here. As i am newbie, the problem might be stupid. I was writing a piece of code while the following error message shown,</p> <p>terminate called after throwing an instance of 'std::length_error'</p> <p>what(): basic_string::_S_create</p> <p>/home/gcj/finals /home/gcj/quals where Aborted</p> <p>the following is the offending code especially Line 39 to Line 52. It is weired for me as this block of code is almost same as the Line64 to Line79.</p> <p><pre> <code></p> int main(){ std::vector&lt;std::string&gt; dirs, need; std::string tmp_str; std::ifstream fp_in("small.in"); std::ofstream fp_out("output"); std::string::iterator iter_substr_begin, iter_substr_end; std::string slash("/"); int T, N, M; fp_in&gt;&gt;T; for (int t = 0; t &lt; T; t++){ std::cout&lt;&lt;" time "&lt;&lt; t &lt;&lt; std::endl; fp_in &gt;&gt; N &gt;&gt; M; for (int n =0; n&lt;N; n++){ fp_in&gt;&gt;tmp_str; dirs.push_back(tmp_str); tmp_str.clear(); } for (int m=0; m&lt;M; m++){ fp_in&gt;&gt;tmp_str; need.push_back(tmp_str); tmp_str.clear(); } for (std::vector&lt;std::string&gt;::iterator iter = dirs.begin(); iter!=dirs.end(); iter++){ for (std::string::iterator iter_str = (*iter).begin()+1; iter_str&lt;(*iter).end(); ++iter_str){ if ((*iter_str)=='/') { std::string tmp_str2((*iter).begin(), iter_str); if (find(dirs.begin(), dirs.end(), tmp_str2)==dirs.end()) { dirs.push_back(tmp_str2); } } } } for (std::vector&lt;std::string&gt;::iterator iter_tmp = dirs.begin(); iter_tmp!= dirs.end(); ++iter_tmp) std::cout&lt;&lt;*iter_tmp&lt;&lt;" "; dirs.clear(); std::cout&lt;&lt;std::endl; std::cout&lt;&lt;" need "&lt;&lt;std::endl; //processing the next for (std::vector&lt;std::string&gt;::iterator iter_tmp = need.begin(); iter_tmp!=need.end(); ++iter_tmp) std::cout&lt;&lt;*iter_tmp&lt;&lt;" "; std::cout&lt;&lt;" where "; for (std::vector&lt;std::string&gt;::iterator iter = need.begin(); iter!=need.end(); iter++){ for (std::string::iterator iter_str = (*iter).begin()+1; iter_str&lt;(*iter).end(); ++iter_str){ if ((*iter_str)=='/') { std::string tmp_str2((*iter).begin(), iter_str); if (find(need.begin(), need.end(), tmp_str2)==need.end()) { need.push_back(tmp_str2); } } } } for (std::vector&lt;std::string&gt;::iterator iter_tmp = need.begin(); iter_tmp!= need.end(); ++iter_tmp) std::cout&lt;&lt;*iter_tmp&lt;&lt;" "; need.clear(); std::cout&lt;&lt;std::endl; //finish processing the next } for (std::vector&lt;std::string&gt;::iterator iter= dirs.begin(); iter!=dirs.end(); iter++) std::cout&lt;&lt;*iter&lt;&lt;" "; std::cout&lt;&lt;std::endl; for (std::vector&lt;std::string&gt;::iterator iter= need.begin(); iter!=need.end(); iter++) std::cout&lt;&lt;*iter&lt;&lt;" "; std::cout&lt;&lt;std::endl; fp_out.close(); } </code></pre> <p></p> <p>best regards, Mark</p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USmark
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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    2. PO
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    1. VO
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      1. POterminate called after throwing an instance of 'std::length_error'
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    2. VO
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      1. POterminate called after throwing an instance of 'std::length_error'
      1. This table or related slice is empty.
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    3. VO
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      1. POterminate called after throwing an instance of 'std::length_error'
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      1. VTUpMod
    1. COPlease mark line 39 to 52. There's no line numbers in SO.
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      1. POterminate called after throwing an instance of 'std::length_error'
      1. USkennytm
    2. COIt looks like you're doing a lot of work to enforce that `dirs` and `need` are unique. Maybe switch from `vector` to `set`, and it'll do it automatically.
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      1. POterminate called after throwing an instance of 'std::length_error'
      1. USStephen
    3. COPeople are not going to help unless you make it easy. 1) The code is not complete and does not compile. 2) How can we test it the same way as you without the same input file? 3) Line numbers for you are unlikely to match line numbers for anybody else (mark the bad code with a comment).
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      1. POterminate called after throwing an instance of 'std::length_error'
      1. USMartin York
 

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