problem about filehandle-Collection of common programming errors

• 
  Russell C
  python hashtable irc filehandle
  So I’m working on a script that will automatically download certain files from IRC XDCC bots when run. These requests are asynchronous and there can be a varying number, depending on a config file so I wanted to keep the file handles in a hash table or library so they could easily be referenced based on who the file sender was and the file they are sending (read during a triggered event). Python is complaining saying SyntaxError: can’t assign to function call so I’m guessing it won’t work quit
• 
  Jonathan Leffler
  c++ c stdout filehandle
  I have a Windows C++ program that is doing something like:FILE* pf = …;*stdout = *pf; // stdout is defined in stdio.hI’m looking for an explanation about what happens when you change the value of the stdout file handle. Is this just a way of redirecting stdout?-cr
• 
  brian d foy
  perl arrays filehandle
  I quickly jotted off a Perl script that would average a few files with just columns of numbers. It involves reading from an array of filehandles. Here is the script:#!/usr/local/bin/perluse strict; use warnings;use Symbol;die “Usage: $0 file1 [file2 …]\n” unless scalar(@ARGV);my @fhs;foreach(@ARGV){my $fh = gensym;open $fh, $_ or die “Unable to open \”$_\””;push(@fhs, $fh); }while (scalar(@fhs)){my ($result, $n, $a, $i) = (0,0,0,0);while ($i <= $#fhs){if ($a = <$fhs[$i]>){$result +=
• 
  Zaid
  perl filehandle
  please look at the following code first.#! /usr/bin/perl package foo;sub new {my $pkg = shift;my $self = {};my $self->{_fd} = undef;bless $self, $pkg;return $self; }sub Setfd {my $self = shift;my $fd = shift;$self_->{_fd} = $fd; }sub write {my $self = shift;print $self->{_fd} “hello word”; }my $foo = new foo;My intention is to store a file handle within a class using hash. the file handle is undefined at first, but can be initilized afterwards by calling Setfd function. then write can b
• 
  Jean
  perl file filehandle
  In the following code if there is space between FILE and ( in the printf statement likeprintf FILE (“Test string inline\n”);Perl will treat FILE as a filehandle otherwise printf FILE(“Test string inline\n”);will be treated as subroutine call(If no subroutine is defined by FILE perl will through an error Undefined subroutine &main::FILE called at ./test.pl line xx ). Isn’t there a better way Perl can implement this ? (Maybe this is why bareword filehandles are considered outdated ?)#!/usr/bi
• 
  MohamedMansour
  java c++ dll jni filehandle
  I made JNI functions and linked them with the c++ dynamic library successfully. I got all of them working just fine, but I had an issue for one function, I got symbol lookup error from the FileHandle class that I used in the c++ that I use to read data from file. Knowing that it’s working on a normal c++ project, but not in the DLL./usr/lib/jvm/jdk1.7.0/bin/java: symbol lookup error: /home/…/NetBeansProjects/TRIOGUI/dist/libNativeAdd.so: undefined symbol: _ZN5Gdsii9GdsParserC1EPKcN7SoftJin10Fi
• 
  forsvarir
  c visual-c++ stream filehandle fflush
  I’m trying to run some code but fflush() with the error:Invalid file descriptor. File possibly closed by a different threadHere is the relevant part of the code:fhandle = fopen(“dbfile.bin”, “rbc”);/* There is a valid dbfile.bin file – get file size */_fstat(_fileno(fhandle), &file_stat);printf(“dbfile.bin size = %d\n”, file_stat.st_size);g_tpd_list = (tpd_list*)calloc(1, file_stat.st_size);if (!g_tpd_list){rc = MEMORY_ERROR;}else{fread(g_tpd_list, file_stat.st_size, 1, fhandle);fflush(fhand
• 
  user1465767
  for-loop openmp filehandle gz
  test.fa.gz file contains multiple 4 lines as blow:@HWI-ST298:420:B08APABXX:3:1101:1244:2212 1:N:0:TCATTC GGCAAGGCACTTACTTTACAGCTAAAGAAGTGCAGC + @@@FDFFDFHCFDACGHC<<CCFEHHFCCFCEE:C?What I want to do is to read every four lines of *.fq.gz file in parallel with OpenMP. The code blow could be compiled successfully, but will show incorrect results sometimes. In each for loop, I used 4 times of getline() to read the file. I’m not sure how OpenMP will handle the multiple jobs in each for loop and
• 
  Kurt W. Leucht
  perl string multiline filehandle
  I’m trying to figure out the proper PBP approved way to process a multi line string one line at a time. Many Perl coders suggest treating the multi line string as a filehandle, which works fine unless you have “use strict” in your script. Then you get a warning from the compiler about not being able to use a string as a symbol while strict refs is in use.Here’s a simple working example of the problem:#use strict; use warnings; my $return = `dir`; my $ResultsHandle = “”; my $matchLines = “”; my
• 
  user2145514
  java serialization libgdx filehandle
  When trying to execute this piece of code:public void load(String filename) { FileHandle file =Gdx.files.external(filename + “.bim”); Json json = new Json();String text = file.readString(); datamap.clear(); datamap =json.fromJson(HashMap.class, text);I get an error:Exception in thread “LWJGL Application”com.badlogic.gdx.utils.GdxRuntimeException:com.badlogic.gdx.utils.SerializationException: Class cannot be created(missing no-arg constructor): com.bvo.easyBim.Model.Cursor atcom.badlog

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