Hi, I have a pointer (uint8_t *myPointer), that I pass as paramether to a method, and then this method set the value to this pointer, but I want to know how much bytes are used (pointed ?) by the myPointer variable. Thanks in advance and excuse me by my english. ...
I'm trying to learn C from a Ruby/PHP/Java background, and I've found that you almost always explicitly cast things (at least in tutorials). Like, I always see things like double x, y; x = 1.0; /*...*/ y = x*5.0; However, it seems that on my Mac's version of GCC, automatic casting works. Is leaving the .0 on things just a matter of ...
I'm new at Lua and writing bindings in general. At the moment I'm just trying to compile the first example found here (with the functions updated to Lua 5.1). #include <stdio.h> #include "lua.h" #include "lualib.h" #include "lauxlib.h" /* the Lua interpreter */ lua_State* L; int main ( int argc, char *argv[] ) { /* initialize Lua...
Possible Duplicate: Could anyone explain these undefined behaviors (i = i++ + ++i , i = i++, etc) Is i=i++ valid? Why or why not? ...
I have a fork of openssh with some new features and want to write some unit tests to make sure they work at build. Grafting Check into openssh's autotools configuration is diffacult (because I don't really understand autotools) Is there an easier to use C unit test framework? One less closely tied to autotools? How about a better way o...
I would like to parse a lot of apache log files with a C library. Who knows a good C library which is optimized for good performance? Thank you for advice! ...
Hey, I'm working on a map editor for my game, and I'm trying to convert the mouse position to a position in the game world, the view is set up using gluPerspective ...
Is there a way to make a toolbar button look different than the rest (Aside from changing bitmap or setting its state to Disable? Is there away to make it look highlighted all the time? I want the selected tool to look selected. Thanks (Sort of like the way open applications are "Selected" in Windows 7. ...
I'm trying to solve Project Euler #9, which is http://projecteuler.net/index.php?section=problems&id=9. I've looked through this code, and the logic seems right…but I'm not getting any output at all, not even the printfs in the loop. I'm (obviously) a C newbie, trying to learn from higher level languages…could you tell me what's goi...
This looks like code in the C language, but I am not completely sure ... # define v putchar # define print(x) main(){v(4+v(v(52)-4));return 0;}/* #>+++++++4+[>++++++<-]>++++.----.++++.*/ print(202*2);exit(); #define/*>.@*/exit() ...
I have an array declared as a member of a struct in C. The array is declared as: char mValue[MAXROWS][MAXCOLUMNS]; where MAXROWS and MAXROWS are 300. Is there a better way to do this? I mean, should I declare these as pointers instead? Thanks! ...
I run my C code in vs2010 (win32 console application). It was compiled as c++ application. #include "stdafx.h" #define YES 1; #define NO 0; // function to determine if an integer is even int isEven(int number) { int answer; if ( number % 2 == 0) answer = YES; else answer = NO; retu...
Hey guys, In today's "Zneak's time-wasting adventures", I decided I should try to implement coroutines (I think that's how I should call them). I expect to have to use assembler, and probably some C if I want to make this actually useful for anything. Bear in mind that this is for educational purposes. Using an already built coroutine ...
Hi All, I want to define some constants in my C file. Its assembly code like this: Const1 = 0 Const2 = 0 IF Condition1_SUPPORT Const1 = Const1 or (1 shl 6) Const2 = Const2 or (1 shl 3) ENDIF IF Condition2_SUPPORT Const1 = Const1 or (1 shl 5) Const2 = Const2 or (1 shl 2) ENDIF Could you tell me the simplest w...
I am trying to write a program to serialize a linked list to a file without using any libraries. My problem is how to add or remove nodes to the serialized structure since I dont have next pointer ? Also how can I avoid fragmentation ? Thanks & Regards ...
I think this maybe a really dumb question, but i just want to be clarified. Thanks in advance! I'm not sure if an array of structure declared as a local variable inside a function gets allocated in the stack. Doesn't? ...
I've read a fair amount of stuff about efficiency of array indices vs. pointers, and how it doesn't really matter unless you're doing something a lot. However, I am doing this a lot. The code in question has an array of structs. (Two different ones, for two different types actually, but whatever). Since my background is mostly in hig...
How to remove blank spaces in a string with a complexity of O(n). My approach is using two indexes. One will traverse till length on string. Other will be incremented only when a non-blank character is encountered. But i am not sure of this approach. TIA, Praveen ...
I want to know the exact contents of a program stack. How is the branching operation done? What is meant by memory dump while debugging a program using gdb? Does it give the program stack? TIA, Praveen ...
Greetings Overflowers, I am trying to deeply understand how one can develop an x86 (ia32/ia64) backend for OO languages (staticly/dynamically tryped), mainly to be run on Windows OS. I have a good understanding of the x86 architecture, Windows architecture and how to get a code to the tree level ready to be optimized and serialized int...