C / C++ Forum

On a gentoo linux system i don't get any warnings when I comlpile this code: #include <stdio.h> typedef struct test { void *content; struct test_ *bob; } test_;

Hello colleague I want to convert a floating number for example 5236.9856982 to a hexadecimal number. I'd tried several things but my problem is to convert the position after decimal point. I searched numberless websites but nothing could answer my question. I would be pleased to get some help. Regards

Can anybody have idea about the difference between #include <iostream.h> and #include <iostream>. Is later one valid statement on any compiler. I tried compiling on MSVC second statement give compilation error as #include expect filename. Anu help would be appreciated. thanx, John

Hi, I'm beginner and have problems by using function square from math.h Compajler: Borland C++ 5.5.1 for Win32 Code: #include <iostream.h> #include <math.h>

Hi, I want to print a string of UTF8 encoded characters as two-character hexadecimals. For example I want to print Unicode 3003 as "E3 80 85". My problem is, what format string should I use? I tried printf ("%X ", c);

im newbie here.. n need some help.. alphabets got 26 character n each character got secret number.. example: a = 01

Hi there, I need to know how to get the elapsed time in milliseconds. I tried time_t start,end; time(start); do_something(); time(end); double dif = difftime(end, start);

I know that C++ Standard does not impose any requirements for the size of _long_ type. I wonder what is the size of _long_ in reality? I don't think that there are architectures with 1-byte _long_. I think, the most probable size for _long_ would be 4 bytes. What about 2-byte _long_, are there any architectures with that size? Thanks, ...

I accidentally typed %b instead of %d in a printf format string and got a binary representation of the number. Is that standard C or a compiler extension?

How can I find the length of a character pointer in 'C'? TIA

Greetings, I need to use a long long data type integer in my program, but how to print it with printf() or an alternative? My platform is Solaris 2.7 32bit operating system, and I use Sun Forte 6 C compiler. Thanks in advance! Evan

hi all.. if I wanted to malloc a struct, say the following: struct myStruct1 { int number; char *string; }

I can get the accurate value of Pi to an arbitrary precision, but it would be nice to have it directly and readily available as a standard feature of the language. Have I overlooked something, or is it not there? ISO/IEC14882:2003(E) offers me this: template<class T> complex<T> log(const complex<T>& x); "4 Notes: the branch cuts are...

hi, Please tell me what header file is used for sleep ( ) function in linux c++. Thank you.

Hi all, I think this has been posted many times.. but I tried several recipes for obtaining a random number between , but I can't make them work. So, does anyone know how to generate random number x, for 0<= x <=1?? Thanks, FBM

Consider the following code: #include <stdio.h> int main( void ) { printf("Hello"); fflush(stdout); return 0; }

please everybody ,can anyone tell me how to do an infinite loop in C

how to convert int to char * ? I have found this in a web site. However, it doesn't work even I change itoa to atoi including stdlib.h char str; int i=567; str=itoa(i, str, 10);

I felt that this was a good point to start a tutorial on C/C++ programming because clearly we need to have some idea of what we are trying to achieve before we start out. I recently found this definition on the web which I rather like "Programming is planning how to solve a problem. No matter what method is used -- pencil and paper, slide...

hi, there, for example, char *mystr="##this is##a examp#le"; I want to replace all the "##" in mystr with "****". How can I do this? I checked all the string functions in C, but did not find one.

Hi, Does enyone know how to print string describing the enum value? For example: enum MyEnum{F1=1, F2}; ... MyEnum me = F2; printf("My Value: %d", me); ...

HI, is this is this solution to test if a number is a prime number or not: /* * Is n a prime number? * Return TRUE (1): n is a prime number * Return FALSE (0): n is a *not* a prime number */ int is_prime_number(int n)

I have a character byte.I have to set any bit from it to 1.I am passing a bit position through a function say set_bits(bit_position) .Now give me a c code for this.Also i want to reset this bit again to 0, how can I do it.?

Hey! When trying to compile the code for a ordered vector class I get the following error: undefined reference to `WinMain@16' Anyone have any idea what I might be doing wrong? I've been through this code multiple times and have no idea what would cause an error like this, I've never seen one like it before. Any help would be greatly...

I have a small program, test.c. It runs OK. This is on Linux (kernel 2.6.8.1, GCC 3.4.1). I decided to convert it to C++ before expanding it to a larger program. I changed the filename to test.cpp and added extern "C" { } around main and all the non-static subroutines. It compiles OK, but when I