I am trying to convert a string (const char* argv[]) to a double precision floating point number: int main(const int argc, const char *argv[]) { int i; double numbers[argc - 1]; for(i = 1; i < argc; i += 1) { /* -- Convert each argv into a double and put it in `number` */ } /* ... */ return 0; } Can any...
i am having a very irritating problem, when i open a url ( http://celebs.widewallpapers.net/md/a/adriana-lima/1440/Adriana-Lima-1440x900-002.jpg ) in browser, it works fine.. but when i try to access it by telnet on bash, i get 404 not found!! my exact terminal: $ telnet celebs.widewallpapers.net 80 HEAD /md/a/adriana-lima/1440/Adrian...
What does it mean when a object has 2 asterisks at the beginning? **variable ...
How exactly does one provide texture coordinates and bind a texture for a GLUTess polygon? Thanks ...
Possible Duplicate: Uses for multiple levels of pointer dereferences? I saw a question about ** (pointer to a pointer) in C here. I'd like to know whats the point of this? When should I use it? ...
When c-auto-newline is set to non-nil, it re-indents the current line and inserts a carriage return and then indents the new line. However. I'm using 1TBS indent-style (with 4 space indents), which means if/else statements are made like this: if (n == 1) { exit(EXIT_SUCCESS); } else { perror("n"); } Also, I write do/while writ...
I know that there are other questions similar to this one, however the following question pertains to arbitrary-precision random number generation in C for use in Monte Carlo simulation. How can we generate good quality arbitrary-precision random numbers in C, when atmospheric noise isn't always available, without relying on disk i/o or...
Why do this work? int *var; while(scanf("%d", &var) && *var != 0) printf("%d \n", var); While this does not? int *var; while(scanf("%d", &var) && var != 0) printf("%d \n", var); Doesn't * (dereference operator) give you the value pointed by the pointer? So why does *var != 0 crash the program, while var != 0 d...
Hi. I'm working on my assignment on pthreads. I'm new and never touched on pthreads before. Is there any sample codes or resources out there that anyone of you have, that might aid me in my assignment? Here are my assignment details. A pthread program about queue system: Write a C/C++ Pthread program for a Dental clinic’s queuing sy...
Hi, I am a teaching assistant of a introductory programming course, and some students made this type of error: char name[20]; scanf("%s",&name); which is not surprising as they are learning... What is surprising is that, besides gcc warning, the code works (at least this part). I have been trying to understand and I wrote the followin...
Possible Duplicates: Best unix/linux C++ debuger/IDE ? Best C++ IDE or Editor for Windows Not counting Visual Studio what IDE's do professionals use? ...
I am having issues loading my effect.fx from directx. When I step into my application, my ID3D10Effect *m_pDefaultEffect; pointer remains empty. the address remains at 0x000000 below is my code #pragma once #include "stdafx.h" #include "resource.h" #include "d3d10.h" #include "d3dx10.h" #include "dinput.h" #define MAX_LOADSTRING 100 ...
Hey all, I'm using select() to recv() messages from server, using TCP/IP. When I send() messages from the server, it returns a reasonable number of bytes, saying it's sent successful. And it does get to the client successfully when I use while loop to just recv(). Everything is fine and dandy. while(1) recv() // obviously pseudocode...
The following PHP code will output 3. function main() { if (1) { $i = 3; } echo $i; } main(); But the following C code will raise a compile error. void main() { if (1) { int i = 3; } printf("%d", i); } So variables in PHP are not strictly block-scoped? In PHP, variables defined in inner blo...
Pasted below is unoptimized GCC assembly output for "int main(){}". I'm relatively good with x86 assembly, but some of this is unfamiliar. Could someone please do a line-by-line walk-through of what's going on here? Thanks! .text .globl _main _main: LFB2: pushq %rbp LCFI0: movq %rsp, %rbp LCFI1: leave ret LFE...
I couldn't find a working example of the method [NSDictionary getObjects:andKeys:]. The only example I could find, doesn't compile. I provided the errors/warnings here in case someone is searching for them. The reason I was confused is because most methods on NSDictionary return an NSArray. However, in the documentation it states that t...
Specifically I am talking about using AIM and sending instant messages to an existing AIM screename. How would I accomplish this? I am trying to do it the simplest way possible -efficiency is not that important. I thought maybe all I would have to do is open a socket connections some how but I am probably wrong. ...
Hi floks, I have a question concerning floating constants in C. In Java, the default type of floating point constants in double, so the following will causes a compilation error in java: float f = 100.0; // we either need to uses type case operator or put f at the end of the number constant. This is because the default floating-po...
I'v followed a tutorial to get the GLU tesselator working. It works except the interpolation for colors of new points causes a crash after creating a random polygon(error reading from memory...) This is my callback where it crashes: void CALLBACK combineCallback(GLdouble coords[3], GLdouble *vertex_data[4], GLfloat weight[4], ...
What is the best way to get individual digits from an int with n number of digits for use in a radix sort algorithm? I'm wondering if there is a particularly good way to do it in C/C++, if not what is the general best solution? edit: just to clarify, i was looking for a solution other than converting it to a string and treating it like ...