Re: [Dev-C++] Reading GCC output

[Steve D. P. <ste...@ho...>]

    Umm... write a program called 'foo.cpp', compile it to form =
'foo.exe', go to a command-prompt and type:

c:\YourDir\foo.exe > YourOutputFile.txt

    "Piping" isn't something you do at compile-time, it's something you =
do at run-time... to direct an application's input and/or output to or =
from a location other than it was coded for at compile-time.

Cheers,
Steve


  ----- Original Message -----=20
  From: Brian C. Becker=20
  To: devcpp=20
  Sent: Monday, June 18, 2001 12:03 PM
  Subject: [Dev-C++] Reading GCC output


  Hi,
  I am trying to read the output of the gcc compiler like Bloodshed =
Dev-C++ does and am not being successful. I tried looking in the online =
gcc manual for command line options that might direct the output into a =
file, but did not find such an option. I also read that gcc uses temp =
files to communicate between the compiler, assembler, linker, etc, but =
could not find any information on how to find those files to read them. =
I also tried the using the "-pipe" command and that did not work;  I =
also tried the following code to pipe the output into my program. It =
works for other console programs but outputs garbage when I try to read =
the output of gcc (perhaps because gcc calles other proccesses? ):

  long i;
  HANDLE rh;
  HANDLE wh;
  STARTUPINFO stinfo;
  PROCESS_INFORMATION pinfo;
  DWORD bytesread;
  char buf[65536];
  SECURITY_ATTRIBUTES sattr;
  akostring output;
  HANDLE oldwh;
      ZeroMemory(&sattr, sizeof(SECURITY_ATTRIBUTES));
   sattr.nLength =3D sizeof(SECURITY_ATTRIBUTES);
   sattr.lpSecurityDescriptor =3D 0;
   sattr.bInheritHandle =3D true;
  CreatePipe(&rh, &wh, &sattr, 0);
  oldwh =3D GetStdHandle(STD_OUTPUT_HANDLE);
  SetStdHandle(STD_OUTPUT_HANDLE, wh);
      ZeroMemory(&stinfo, sizeof(STARTUPINFO));
   stinfo.cb =3D sizeof(STARTUPINFO);
   stinfo.lpReserved =3D 0;
   stinfo.lpReserved2 =3D 0;
   stinfo.cbReserved2 =3D 0 ;
   stinfo.lpDesktop =3D 0;
   stinfo.lpTitle =3D 0;
      stinfo.dwFlags =3D STARTF_USESHOWWINDOW;
      stinfo.wShowWindow =3D SW_HIDE;
  if(!CreateProcess(0, "C:\\WINDOWS\\TEMP\\AkoClass\\compiler\\bin\\g++ =
\"C:\\WINDOWS\\TEMP\\AKOCLASS\\OUTPUT.cpp\" -c -s -mwindows -O1 -O3 =
-fexpensive-optimizations =
-IC:\\WINDOWS\\TEMP\\AkoClass\\compiler\\INCLUDE\\ =
-IC:\\WINDOWS\\TEMP\\AkoClass\\compiler\\INCLUDE\\G__~1 =
-IC:\\WINDOWS\\TEMP\\AkoClass\\compiler\\INCLUDE\\ =
-LC:\\WINDOWS\\TEMP\\AkoClass\\compiler\\LIB\\ =
-BC:\\WINDOWS\\TEMP\\AkoClass\\compiler\\BIN", 0, 0, false,  =
CREATE_NEW_CONSOLE | NORMAL_PRIORITY_CLASS, 0,0, &stinfo, &pinfo)){
  MessageBox(0,"Error","Failed",0);
  }
      else{
      WaitForSingleObject(pinfo.hProcess, INFINITE );
   CloseHandle(wh);
   SetStdHandle(STD_OUTPUT_HANDLE, oldwh);
   output =3D "";
  ReadFile(rh, &buf, 65536, &bytesread, NULL);
    output =3D (char*) &buf;
      CloseHandle(pinfo.hProcess);
      CloseHandle( pinfo.hThread );
  }
  //Note: akostring is a string class.
  // output now contains garbage or nothing

  Could anybody help me with this problem? Thanks in advance.

  Sincerely,
  Brian

  "Shall we accept good from God, and not trouble?"  Job 2:10