This isn't an attempt to start a flame war about Language A Versus Language B, nor Compiler A Versus Compiler B, it's simple a question on your personal experiences: what language is faster and, hopefully, use less resources: C or Forth? I welcome ANY opinion, hopefully based in real experience. ...
I want to know that how to access a sector of the hard disk in Windows XP with a C program? ...
I got this code from somewhere. It prints the map of India, But how this code works? I can't understand anything of this. If somebody knows, please help me to understand this. #include "stdio.h" main() { int a,b,c; int count = 1; for (b = c = 10; a = "- FIGURE?, UMKC,XYZHello Folks,\ TFy!QJu ROo TNn(ROo...
Hi, my question is general for all languages, but I'm using only C, so, I would like to get answer in this one. My question is, How Can I control the behavior of another applications that I didn't write? For example: How Can I fill this entry box (in this site) using C? Do I need to control the browser? (I'm using firefox.) Still in ...
I don't know if I'm missing something obvious, but it appears that I'm unable to compute square roots of a variable in C; the sqrt() function only seems to work on constants. This is my code: #include <math.h> #include <stdio.h> int main() { double a = 2.0; double b = sqrt(a); printf("%f", b); return 0; } When I run t...
Working on different projects I have the choice of selecting different programming languages, as long as the task is done. I was wondering what the real difference is, in terms of performance, between writing a program in Python, versus doing it in C. The tasks to be done are pretty varied, e.g. sorting textfiles, disk access, network...
This is a question from job interview.Let's say we have "a.c" source file with some function and "a.h" as its header file.Also we have main.c file which calls that function.Now let's suppose we have "a.h" and "a.o"(object file) and a.c is unavailable.How do we call this function now? (I had a hint that we need to use function pointers.An...
I'm reading the phoneME's source code. It's a FOSS JavaME implementation. It's written in C++, and I stumbled upon this: // Makes a string of the argument (which is not macro-expanded) #define STR(a) #a I know C and C++, but I never read something like this. What does the # in #a do? Also, in the same file, there's: // Makes a strin...
Hello, We have a very versatile terminal/sniffer application which can do all sorts of things with TCP, UDP and serial connections. We are looking to make it extensible -- i.e, allow people to write their own protocol parsers, highlighters, etc. We created a C-like language for extending the product, and then discovered that for some ...
I've found some weird C++ preprocessor clauses, like: #define COMPILER_FLOAT_ENTRIES_DO(template) and #define COMPILER_FLOAT_ENTRIES_DO(template) \ template(jvm_fadd) \ template(jvm_fsub) \ template(jvm_f2d) What does passing "template" reserved word to a #define, and calling template(something) mean? I couldn't find any...
I've had to do this many times in the past, and I've never been satisfied with the results. Can anyone suggest a fast way of copying a contiguous bit array from source to destination where both the source and destination's may not be aligned (right shifted) on convenient processor boundaries? If both the source and destination's aren't...
Is there any way to determine whether the Accelerate.framework is available at runtime from straight C or C++ files? The examples I've found for conditional coding all seem to require Objective-C introspection (e.g., respondsToSelector) and/or Objective-C apis (e.g., UIDevice's systemVersion member) ...
Hi, I need a function like string ToLiteral(string input) from this post. Such that char *literal = to_literal("asdf\r\n"); Would yield literal ==> "asdf\\r\\n". I've googled around, but not been able to find anything (guess that I've must be using the wrong terms). However, I assume that a library with this functionality must be out...
My project has several new C# modules and one C module (not C++) compiled using win32 system calls. I'm using the PInvoke interop layer to call the C code from the C#. The C function is getting called. All modules are writing to a single bin directory and all write pdb files. On running, and then stopping at a breakpoint right be...
Sorry if this has been asked elsewhere. I am a C,Win32 developer and want to learn similar stuff in the linux world. What are the best and easy opensource projects for learning similar stuff on Linux. Like in C,Win32 world i want to start off with User space and onto advance stuff like internals,device drivers etc. I am interested in N...
I'm working on a server application that's going to work on Linux and Mac OS X. It goes like this: start main application fork of the controller process call lock_down() in the controller process terminate main application the controller process then forks again, creating a worker process eventually the controller keeps forking more wo...
Is there any way to do this in a condensed form? GLfloat coordinates[8]; ... coordinates[0] = 1.0f; coordinates[1] = 0.0f; coordinates[2] = 1.0f; coordinates[3] = 1.0f; coordinates[4] = 0.0f; coordinates[5] = 1.0f; coordinates[6] = 0.0f; coordinates[7] = 0.0f; return coordinates; Something like coordinates = {1.0f, ...};? ...
hello i got a problem with reading from a file, i am trying to read from a file using fscanf() and i cant seem to sort it out. i try to read the file line by line and putting the string in a variable (buffer) each time but i cant understand how the while loop is suppose to be looking like thanks in advance the file that i want to read f...
Hi guys, I really have a strange situation. I'm making a Linux multi-threaded C application using all the nitty-gritty memory stuff involving char* strings, and I'm stuck in a really odd position. Basically, what happens is, using POSIX threads, I'm reading and writing to a two-dimensional char array, but it has unusual errors. You hav...
Hey I am trying to make a GTK IRC client that uses webkit to display its messages. The webview is within a ScrolledWindow, and I want the scrolledwindow to scroll to the bottom everytime it gets too big. I've tried changing the vadjustment value of the scrolledwindow when a message is added but this doesn't seem to work at all. It kee...