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POArray too big? reading a big file into array C++
 

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  1. POArray too big? reading a big file into array C++
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    <p>Below is my code, it's not very pretty, but it works well in many cases.<br> I'm running into this question that when I'm trying to read this file(download by this program) into array, then do some analysis with the array, it shows this error:<br><br> <strong>Unhandled exception at 0x00a7c197 in projectII.exe: 0xC00000FD: Stack overflow.</strong><br></p> <p>I feel there is nothing wrong with the code. Is it the size of the array exceeds the memory capacity?<br><br> or do you suggest a better way to do analysis with a file without reading it into an array?<br> Thanks!! Any help is really appreciated!</p> <pre><code>#include &lt;string&gt; #include &lt;iostream&gt; #include &lt;fstream&gt; #include &lt;windows.h&gt; #include &lt;wininet.h&gt; #include &lt;winsock.h&gt; #include &lt;stdio.h&gt; #pragma comment(lib, "wininet.lib") using namespace std; const int file_l = 100; const int file_length = 40000; const int sam_url_num = 1; wstring s2ws(const string&amp; s) { int len; int slength = (int)s.length() + 1; len = MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, 0, 0); wchar_t* buf = new wchar_t[len]; MultiByteToWideChar(CP_ACP, 0, s.c_str(), slength, buf, len); wstring r(buf); delete[] buf; return r; } int download_url(string url) { HINTERNET hOpen, hURL; LPCWSTR NameProgram = L"Webreader"; wstring stemp = s2ws(url); LPCWSTR Website = stemp.c_str(); char file[file_l+1]; unsigned long read; if ( !(hOpen = InternetOpen(NameProgram, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0 ))) { cerr &lt;&lt; "Error in opening internet" &lt;&lt; endl; return 0; } hURL = InternetOpenUrl( hOpen, Website, NULL, 0, 0, 0 ); ofstream fout("RSS_archieve_download.txt"); InternetReadFile(hURL, file, file_l, &amp;read); int i = 0; while (read &gt; 0) { file[read] = '\0'; fout &lt;&lt; file; InternetReadFile(hURL, file, file_l, &amp;read); i+=1; } fout.close(); cout &lt;&lt; endl; InternetCloseHandle(hURL); return 0; } int read_file(string webpage[]) { ifstream fin("RSS_archieve_download.txt"); if (fin.fail()) { cout &lt;&lt; "Failed to open RSS_archieve_download.txt\n"; exit(1); } int i = 0; while (true) { getline(fin, webpage[i], '\n'); if (fin.fail()) break; i+=1; } fin.close(); } void multi_url(string webpage[], string url_list[])//final printout func { string url; ifstream fin("RSS_archieve_urls.txt"); if(fin.fail()) { cout &lt;&lt; "Failed to open RSS_archieve_urls\n"; exit(1); } int i = 0; while(true) { fin &gt;&gt; url_list[i]; if (fin.fail()) break; i+=1; } fin.close(); ofstream fout("R2_url.txt"); for(int j = 0; j &lt; i; j++) { url = url_list[j]; download_url(url); // read_file(webpage); } fout.close(); } int main() { string arr[file_length]; string sample_url[sam_url_num]; multi_url(arr, sample_url); system ("pause"); return 0; } </code></pre>
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    1. USHoneycrisp
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      1. USSoftware_Designer
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    1. COWhere does the error occur? How do you run the program when it fails?
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      1. POArray too big? reading a big file into array C++
      1. USShafik Yaghmour
    2. CO@ShafikYaghmour I don't really know where it fails. will this help? ** test dword ptr [eax],eax ; probe page.**
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      1. USHoneycrisp
    3. COstring arr[40000] might be an issue. Try string * arr = new string[40000] instead.
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      1. USbrian beuning
 

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