hi i have the following code below, where i try to get all the lines of a file into an array... for example if in file data.txt i have the following: first line second line then in below code i want to get in data array the following: data[0] = "first line"; data[1] = "second line" My first question: Currently I am getting "Segmentat...
Hi, I am a great fan of the video editing sites animoto (and stupiflex), i enjoy computer graphics and also have that as my major subject at university. My question is, I have trying to guess what would one need inorder to build such an application. Do any such open-source / free tools do exist that can give the kind of quality offer...
I am generating C code based on information provided by another file (an XML file). Certain chunks of C are included in this XML file and should be included verbatim in my generated C file. I wish to use the #line directive, so that if these chunks contain an error, the user will see the line number in the XML file that the chunk came fr...
Why it doesn't work :( I want to simply invoke a shell in C program by execve: #include <stdio.h> #include <stdlib.h> #include <errno.h> main() { char* path = "/bin/sh"; int err = execve(path, &path, NULL); printf("%d\n", err); printf("%s\n", strerror(errno)); printf("%x, %x\n", path, &path); } ...
Once again, here I am writing C without really knowing what I'm doing... I've slapped together a simple function that I can call from a C# program that takes a DOT string, an output format, and a file name and renders a graph using Graphviz. #include "types.h" #include "graph.h" #include "gvc.h" #define FUNC_EXPORT __declspec(dllexpor...
Hey, What is the result of that line: int* ptr; printf("%x, %x\n", ptr, &ptr); ptr is actually an adress in a memory. So what is &ptr ?? Thanks in advance ...
ASSERT(pointer); pointer->x; In this code, the ASSERT seems to be redundant. If the pointer is NULL, pointer->x will fail anyway. Is my argument correct? ...
Hello Everyone. I have been looking for a ORM library for C(I was thinking about something like ActiveRecord on Ruby) and I can't find any. I was wondering if someone has ever heard of one and could let me know. Thanks in advance. Eduardo Sorribas ...
How long does it take to declare a variable in C, for example int x or unsigned long long var? I am wondering if it would make my code any faster in something like this. for (conditions) { int var = 0; // code } Would it be faster to do this, or is it easier not to? int var; for (conditions) { var = 0; // code } Tha...
My Code const int howmany = 5046; char buffer[howmany]; asm("lea buffer,%esi"); //Get the address of buffer asm("mov howmany,%ebx"); //Set the loop number asm("buf_loop:"); //Lable for beginning of loop asm("movb (%esi),%al"); //Copy buffer[x] to al asm("inc %e...
This is a combination of my two recent questions: [1] http://stackoverflow.com/questions/1954494/python-instance-method-in-c [2] http://stackoverflow.com/questions/1956142/how-to-redirect-stderr-in-python I would like to log the output of both stdout and stderr from a python script. The thing I want to ask is, to create a new type acco...
Reading through some great presentations on low latency computing. They had a reference to IBM's XL C/C++ compiler data cache operation __dcbt (Data Cache Block Touch) for their cell compiler. The operation loads a block of memory into L1 cache. Does Visual Studio (or G++ or Intel) have similar functionality for Intel Processors? If so...
#include <stdio.h> int main() { char temp[1024]; if(getchar() != 'y') { printf("no options\n"); return 1; } scanf(temp, "%s"); printf("%s", temp); } I get snippet as below. I just want twice input from user. but the first input works, however the second dir...
I mean i want the input to be invisible like inputing password when i log in Linux. How can I implement it both in C under linux and windows. thanx ...
I'm trying to figure out what would happened if I try to free a pointer "from the middle" for example, look at the following code: char *ptr = (char*)malloc(10*sizeof(char)); for (char i=0 ; i<10 ; ++i) { ptr[i] = i+10; } ++ptr; ++ptr; ++ptr; ++ptr; free(ptr); I get a crash with an Unhandled exception error msg. I want to understand...
I want to get the system time including fractional part of the seconds. Is it possible in standard c (ANSI C)? If not then tell me some libraries for window OS so that I make it possible. In Linux I have the following code with work fine for me. #include <sys/time.h> #inc...
If I'm statically linking a GTK+ program under FreeBSD 8, gtk_builder_add_from_file() suddenly returns with an error: Invalid object type `GtkWindow' How to fix that? With dynamic linking everything works fine. Update: linking is done by: cc -o foobar foo.o bar.o main.o -Wall -pedantic -std=c99 D_THREAD_SAFE -DORBIT2=1 -D_REENTRAN...
Hi As there several ways to exchange data in the form of strings over sockets, such as e.g: using functions like: 1) sprintf() and sscanf() 2) snprintf() and sscanf() 3) printf() and strtof() or converting to char and then pass it as an array I would appreciate if you could suggest which way and why is efficient and better than ot...
Hi - As a homework problem, I'm working on reading a decimal int from stdin, converting it to a different base (also provided from stdin) and printing it to the screen. Here's what I've got so far: #include <stdio.h> #include <stdlib.h> int main() { int num, base, remainder, quotient; printf("please enter a positive number to...
Hi! I have an interview coming up in a week's time for an entry level position that involves programming in CUDA (hopefully with C). I was wondering if anybody can suggest some interview questions that I can expect during the interview. I have gone through the official programming guide but I'm not all that convenient right now. Tha...