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  • Limit Output in C

    - by Tech163
    In C, I would like to limit the string to the first 8 characters. For example, I have: char out = printf("%c", str); How can I make it so it only returns the first 8 characters?

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  • two threads going to do func()

    - by nisnis84
    2 threads going to use the same func(). The 2 threads should be mutually exclusive. How do I get it to work properly? (output should be "abcdeabcde") char arr[] = "ABCDE"; int len = 5; void func(){ for(int i = 0; i <len;i++) printf("%c,arr[i]); }

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  • Can AutoCAD entities be serialized?

    - by billmuell
    Using ObjectARX (C++) for AutoCAD 2010, can AutoCAD entities be serialized? We need to save the serialized entity in a field in a database (Oracle, PostgreSQL, etc., not AcDbDatabase). It'OK if you show me how to save them in disk, something like this: AcDbEntity * entity; ... std::ofstream ofs("c:\\filename.fil", std::ios::binary); ofs.write((char *)(entity), sizeof(entity)); ofs.close(); Thanks

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  • difference why.............

    - by gcc
    char x; for(i=0;i<256;i+=10) {x=i; if(x==i) printf("%d liii\n",i); else printf("%d sfffi\n",i); } 0 liii 10 liii 20 liii 30 liii 40 liii 50 liii 60 liii 70 liii 80 liii 90 liii 100 liii 110 liii 120 liii 130 sfffi 140 sfffi 150 sfffi 160 sfffi 170 sfffi 180 sfffi 190 sfffi 200 sfffi 210 sfffi 220 sfffi 230 sfffi 240 sfffi 250 sfffi

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  • Localized text in Java

    - by Eager Learner
    My requirement is to display localized text messages in a J2EE web application. I know J2EE provides very good support for this. My question is what is the practice followed to have the localized messages stored to be used by the application. If I want to display Japanese / Chinese kind of messages which are not like English like char sets how do we get that messages/text into the properties files or Database tables.

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  • Crash the program with cmd line args

    - by Debanjan
    Lets us consider the following program : #include <stdlib.h> int main(int argc, char **argv){ int a,b; if (argc != 3) return -1; a = atoi(argv[1]); b = atoi(argv[2]); a = b ? a/b : 0; return a; } The task is to crash the program by providing arguments in command-line.

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  • How to find "\r" in a conditional?

    - by Werner
    Hi, in a C++ program some string reads info from file, and in some part contains a "\r" character. I need to remove it, afte the read, in order to avoid problems. I thought about comparing strings character to character, I thought that "\r" would take two chars, but not, it is just one. how would i use a conditional ? if char[4]==`\r' ??? Thanks P.D. How would the problem be solved in C?

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  • How to run multiple arguments in Cygwin

    - by danutenshu
    I've been trying to run a program that will invert the order of a string and to run it, I have to type a second argument in prompt. int main(int argc, char* argv[]) { string text = argv[2]; for (int num=text.size(); num>./0; num--) { cout << text.at(num); } return 0; } e.g. ./program lorem result: merol

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  • How to Concatenate 2 C strings, without overwriting any terminating Null characters?

    - by Ben313
    Hello, I am trying to set up a list of file names for a parameter to SHFileOperation. I want to be able to concatenate a file name onto the char array, but i dont want to get rid of the terminating character. for example, I want this: C:\...\0E:\...\0F:\...\0\0 when i use strcat(), it overwrites the null, so it looks like C:\...E:\...F:\...0\ Is there any easy way to do this? or am i going to have to code a new strcat for myself?

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  • Execution issue with PyModule_AddIntConstant function

    - by karnol
    I m learning python c api functions and keen to learn python 3.1 stable version. Found an unresolved issue recently and tried PyModule_AddIntConstant(PyObject *module, const char *name, long value) Runtime error occurred for this function call. Is there something wrong with the function in python 3.1?

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  • Subscript text in pdf C#

    - by daft
    How do I insert a subscript charachter in a string in C#? I have nor problems appending a superscript 2 in the same string using char.ConvertFromUtf32(178);, but I struggle with finding a similar solution for the subscripted text. Actually, I'm struggling with finding ANY solution at all to this rather embarrassing issue. :)

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  • Reading binary file with Octave

    - by Anthony Blake
    I'm trying to a binary file consisting of floats with Octave (on OS X), but I'm getting the following error: octave-3.2.3:2> load Input.dat R -binary error: load: failed to read matrix from file `Input.dat' The file was written like so: std::ofstream fout("Input.dat", std::ios::trunc | std::ios::binary); fout.write(reinterpret_cast<char*>(Buf), N*sizeof(double)); fout.close(); Any idea what could be going wrong here?

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  • Why can't your switch statement data type be long Java?

    - by Fostah
    Here's an excerpt from Sun's Java tutorials: A switch works with the byte, short, char, and int primitive data types. It also works with enumerated types (discussed in Classes and Inheritance) and a few special classes that "wrap" certain primitive types: Character, Byte, Short, and Integer (discussed in Simple Data Objects ). There must be a good reason why the long primitive data type is not allowed. Anyone know what it is?

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  • Telephone Directory

    - by Mizukage of Meron 5
    I need your help. We are ask to make a telephone directory program that asks your name, address, and telephone number. If the name you entered already exists, it will display that it already exists. This is what i have so far... #include<stdio.h> #include<conio.h> struct file { char name[25],address[25]; double telno; }; char tempname[25],tempadd[25]; double tempnum; int x; int choice; FILE *fp; main() { struct file rec; clrscr(); fp=fopen("TelDir.txt","a+"); while(!feof(fp)) { fscanf(fp,"%s %s %.0lf,&tempname,&tempadd,&tempnum); printf("\n%s\t\t%s\t\t\t%.0lf",tempname,tempadd,tempnum); printf("\nEnter Name: "); gets(rec.name); if(strcmp(rec.name,tempname)==1) { printf("\n\nALREADY EXIST!"); printf("\n%s\t\t%s\t\t\t%.0lf",tempname,tempadd,tempnum); getch(); } else { printf("Enter Address: "); scanf("%s",&rec.address); printf("Enter your Telephone No.: "); scanf("%lf",&rec.telno); printf("%s\t\t%s\t\t%\t\t0lf",rec.name,rec.address,rec.telno); fprintf(fp,"%s %s %.0lf\n",rec.name,rec.address,rec.telno); } } fclose(fp); getch(); } But this thing doesn't work. I don't know where the error is. Can someone help me on this? I would really appreciate if you could help me somehow.

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  • Printing values of all fields in C++ structure

    - by Zhinkaas
    Say a simple structure struct abc { int a; char b; } I got some value in a variable defined as its structure and now I want to print below a = [some value] b = [some character] What is the best way to achieve this for an arbitrary structure without having to write a dump...(...) function for each of the structure I encounter?

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  • How do I simulate a progress counter in a command line application in Python?

    - by CRP
    My Python program does a series of things and prints some diagnostic output. I would also like to have a progress counter like this: Percentage done: 25% where the number increases "in place". If I use only string statements I can write separate numbers, but that would clutter the screen. Is there some way to achieve this, for example using some escape char for backspace in order to clear a number and write the next one? Thanks

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  • Pass Variables In Inheritance (Obj - C)

    - by Marmik Shah
    I working on a project in Obj-C where i have a base class (ViewController) and a Derived Class (MultiPlayer). Now i have declared certain variables and properties in the base class. My properties are getting accessed from the derived class but im not able to access the variables (int,char and bool type). I'm completely new to Obj-C so i have no clue whats wrong. I have used the data types which are used in C and C++. Is there some specific way to declare variables in Obj-C?? If so, How? Here are my files ViewController.h #import <UIKit/UIKit.h> @interface ViewController : UIViewController @property (weak,nonatomic) IBOutlet UIImageView* backGroungImage; @property (strong,nonatomic) IBOutlet UIImageView *blockView1; @property (strong,nonatomic) IBOutlet UIImageView *blockView2; @property (strong,nonatomic) IBOutlet UIImageView *blockView3; @property (strong,nonatomic) IBOutlet UIImageView *blockView4; @property (strong,nonatomic) IBOutlet UIImageView *blockView5; @property (strong,nonatomic) IBOutlet UIImageView *blockView6; @property (strong,nonatomic) IBOutlet UIImageView *blockView7; @property (strong,nonatomic) IBOutlet UIImageView *blockView8; @property (strong,nonatomic) IBOutlet UIImageView *blockView9; @property (strong,nonatomic) UIImage *x; @property (strong,nonatomic) UIImage *O; @property (strong,nonatomic) IBOutlet UIImageView* back1; @property (strong,nonatomic) IBOutlet UIImageView* back2; @end ViewController.m #import "ViewController.h" @interface ViewController () @end @implementation ViewController int chooseTheBackground = 0; int movesToDecideXorO = 0; int winningArrayX[3]; int winningArrayO[3]; int blocksTotal[9] = {8,3,4,1,5,9,6,7,2}; int checkIfContentInBlocks[9] = {0,0,0,0,0,0,0,0,0}; char determineContentInBlocks[9] = {' ',' ',' ',' ',' ',' ',' ',' ',' '}; bool player1Win = false; bool player2Win = false; bool playerWin = false; bool computerWin = false; - (void)viewDidLoad { [super viewDidLoad]; if(chooseTheBackground==0) { UIImage* backImage = [UIImage imageNamed:@"MainBack1.png"]; _backGroungImage.image=backImage; } if(chooseTheBackground==1) { UIImage* backImage = [UIImage imageNamed:@"MainBack2.png"]; _backGroungImage.image=backImage; } } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end I am not able to use the above declared variables in my derived classes!

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