|
by: Tsai Li Ming |
last post by:
Dear all,
I have a problem with a redirecting stdout and stderr. I am a top level
module and has no control over the imported modules that are making
system calls such as os.system or popen2.* . I have tried the simplest
method of capturing stdout, stderr via:
saveout = sys.stdout
sys.stdout = file_obj
|
by: Randy Yates |
last post by:
When I try
fprintf(file, "Report of File %s\n", sMF->fileName);
I get a core dump. This works fine if fprintf is changed to
sprintf and a string buffer used instead as the first
parameter.
It looks like the standard descriptors are not really open.
|
by: ATS |
last post by:
HOWTO Read from stdout without blocking.
Please help,
I have an app that is launching another process, where it is letting the new
process inherit the STD-IN/OUT hanldes. The goal is to let the C# app use
STDOUT to get feedback from the app after it starts. The problem is that the
reading of STDOUT is blocking when the "EndRead" is called as such:
============================================
|
by: Adi |
last post by:
Hello eveyone,
I wanna ask a very simple question here (as it was quite disturbing
me for a long time.)
My problem is to read a file line by line. I've tried following
implementations but still facing problems:
Assume that
FILE* filePointer;
unsigned char lineBuffer;
|
by: Guillaume Dargaud |
last post by:
Hello all,
a while ago I was pointed towards freopen as a way to redirect stderr to a
log file. It works great, but apparently the app also writes a few lines to
stdout. Now I could redirect to 2 separate files, but would rather keep the
2 flows together.
Is it correct to do this:
stderr=freopen(LogFile, "w", stderr);
stdout=freopen(LogFile, "a", stdout);
|
|
by: Olivier Lefevre |
last post by:
I am calling subprocess.Popen with
p = Popen(args, bufsize=-1, stdin=PIPE, stdout=PIPE, stderr=PIPE)
and after sending come command to the process, I try to read
from p.stdout but after a few calls I hang. What is the correct
way to do this, i.e., to read everything w/o getting stuck? I am
not familiar with all these low-level functions and their annoying
blocking behaviour. Note that I don't want to close the process
because I want to...
|
by: rohit |
last post by:
Hi All,
I am new to C language.I want to read integers from a text file and
want to do some operation in the main program.To be more specific I
need to multiply each of these integers with another set of integers
stored in an array.It would be a great help if you could provide some
code for it.I tried the function fscanf but by that I am able to read
only the first integer of the text file.Please help me.
|
by: Bill Cunningham |
last post by:
I don't think I can do this without some help or hints. Here is the code
I have.
#include <stdio.h>
#include <stdlib.h>
double input(double input) {
int count=0,div=0;
double mean=0,linput=0;
FILE *fpr, *fpw;
|
by: Thomas Christensen |
last post by:
This issue has been raised a couple of times I am sure. But I have yet
to find a satisfying answer.
I am reading from a subprocess and this subprocess sometimes hang, in
which case a call to read() call will block indefinite, keeping me from
killing it.
The folloing sample code illustrates the problem:
proc = subprocess.Popen(,
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|