C++ cross-compile not handling newline input text file -

for clarity:

this not duplicate of getting std :: ifstream handle lf, cr, , crlf?

this extension of c++ cutting off character(s) when read lines file

i state front because when posted question @ c++ cutting off character(s) when read lines file tagged potential duplicate of getting std :: ifstream handle lf, cr, , crlf?. tried simplified version (direct read instead of buffers keep simple) of proposed solution @ other post did not work me , though edited question , code demonstrate that, there has been no responses. jonathon suggested re-post separate question here am.

i have tried numerous other solutions, ending code below although code handles tabs , normal text expected, still not handling newline character differences expected need help.

i want to:

• read in contents of txt file
• run validation checks on content
• output report txt file

in prototype code reading in text 1 file , outputting edited text file. after working, i'll worry running validation tests, ...

i compiling , testing on linux mint maya (ubuntu 12.04 based) box , cross-compiling mingw32 run on windows pc.

everything works fine when i:

• compile , run on linux box linux-created text file
• cross-compile on linux , run on windows linux-created text file

however, when i:

• cross-compile on linux , run on windows windows-created text file

the result not expected; first few characters skipped.

i need program handle either windows-created or linux-created text files.

the (silly content test) input file using in cases (one created on linux box; 1 created on windows using notepad) :

a new beginning in case file corrupted , darn program working fine ... @ least on linux 

when read file in , use program (code shown below) linux-created text file produces proper output:

line 1: new beginning line 2: in case line 3: file corrupted line 4: , darn program working fine ... line 5: @ least on linux 

when use windows-created text file , run program on windows pc, output is:

line 1: new beginning line 2: t in case line 3: e file corrupted line 4: nd darn program working fine ... line 5: @ least on linux 

as can see, there characters missing lines 2,3,4 not 1,5:

• 0 characters missing start of line 1
• 3 characters missing start of line 2
• 2 characters missing start of line 3
• 1 characters missing start of line 4
• 0 characters missing start of line 5

i expect has differences in handling of newline in linux , windows text files have read other postings on , tried solutions not seem solving issue. sure missing basic , apologize in advance if so, i've been banging away @ on week , need help.

the code using is:

int main(int argc, char** argv) {       /*      *program to:      *  1) read text file      *  2) validation checks on content of text file      *  3) output report text file      */      std::string rc_input_file_name = "rc_input_file.txt";     std::string rc_output_file_name = "rc_output_file.txt";      char *rc_input_file_name = new char[ rc_input_file_name.length() + 1 ];     strcpy( rc_input_file_name, rc_input_file_name.c_str() );     char *rc_output_file_name = new char[ rc_output_file_name.length() + 1 ];     strcpy( rc_output_file_name, rc_output_file_name.c_str() );      std::ifstream rc_input_file_holder;     rc_input_file_holder.open( rc_input_file_name , std::ios::in );      if ( ! rc_input_file_holder.is_open() )     {         std::cout << "error - not open input file" << std::endl;         return exit_failure;     }     else     {         std::ofstream rc_output_file_holder;         rc_output_file_holder.open( rc_output_file_name , std::ios::out | std::ios::trunc );          if ( ! rc_output_file_holder.is_open() )         {             std::cout << "error - not open or create output file" << std::endl;             return exit_failure;         }        else         {             std::streampos char_num = 0;              long int line_num = 0;             long int starting_char_pos = 0;              std::string file_line = "";              while ( getline( rc_input_file_holder , file_line ) )             {                 line_num = line_num + 1;                 long unsigned file_line_length = file_line.length();                  std::string string_to_find = "\r";                 std::string string_to_insert = "\n";                 long unsigned num_char_in_string_to_find = string_to_find.length();                 long unsigned character_position;                 while ( ( character_position = file_line.find( string_to_find ) ) != std::string::npos )                 {                     if ( character_position == file_line_length - num_char_in_string_to_find )                     {                         // if \r character found @ end of line,                          //   old mac style newline,                          //   replace \n                         file_line.replace( character_position , num_char_in_string_to_find , string_to_insert );                         file_line_length = file_line.length();                     }                     else                     {                         // if \r character found not last character in line                         //   second-last character meaning windows newline pair \r\n                         //   or somewhere in middle of line                         //   delete                         file_line.erase( character_position , num_char_in_string_to_find  );                         file_line_length = file_line.length();                     }                 }                  int field_display_width = 4;                  rc_output_file_holder << "line " << line_num << ": " << file_line << std::endl;                  starting_char_pos = rc_input_file_holder.tellg();              }              rc_input_file_holder.close();             rc_output_file_holder.close();             delete [] rc_input_file_name;             rc_input_file_name = 0;             delete [] rc_output_file_name;             rc_output_file_name = 0;         }     } } 

any , suggestions appreciated ...

well, thank martin schlott tried program on compiler , worked text files either windows or linux sources.

this pointed me compiler differences , key.

the cross-compiler installed apt-get install mingw32 put older compiler (v4.2.1) cross-compile apt-get install g++ put linux compiler in @ v 4.6.2.

so found old listing on sourceforge v4.6.3 of cross-compiler mingw g++ v4.6.3
, installed it.

i had include path of new install , had add 2 options in compile command

• -static-libgcc
• -static-libstdc++

to prevent 2 "missing dll" error messages.

after that, cross-compile worked cleanly , newline differences handled no problem.

i love technology: spending on week thinking doing wrong , cross-compiler out of date. oh well, learned lot c++ in meantime , helps else in future.

thanks again
r