Guys,
Have a very simple programme for finding the string length. But whats going wrong here.
[
#include<stdio.h>
#include<string.h>
#include<conio.h>
#include<stdlib.h>
main()
{
char * s="ritika";
int l;
l=strlen(char *s);
printf('%d',l);
getch();
/]
You don't need to write char* when using s.
That is only for the declaration.
Have tried putting l=strlen(s);. Did not work out
Note that the printf format string requires double quotes, not single quotes.
plus you include all these libraries for nothing . you only need stdio.h and strings.h.
also , never write something like "main()" or "void main (void)" for start always write "int main (void)" and "return 0;"
as the last line in the main function .
if i don't err the function getch() has need the including the library <curses.h>
getch() is non-standard, as is the entire curses library and conio.h. Instead, try getchar() which is found in stdio.h. get rid of #include <conio.h> and #include <stdlib.h> lines.Originally Posted by vittorio92
hi anduril462,
i have insert the command man getch in my shell end in the page man i have find
the include <curses.h> .... why?
Because, getch() function is non-standard. It is not part of the standard C libraries, it is found in an "extra" library. That means that it may not exist on every system, and it may behave differently on different systems. That is why I suggest you do not use getch. Instead, use getchar, which is a standard function all C implementations have.
On *nix (Linux, Unix, BSD, etc) systems, it is generally part of the curses library (a screen/terminal management library). To use the functions in this library, you must tell the compiler about them, i.e. inform the compiler of their prototypes so it can check that you use them correctly. Those prototypes (including the one for getch()) are in the curses.h header. Often, this library is installed by default, hence the header file, library file and man pages existing on your system. But it may not exist on all *nix systems since it is non-standard.
On Windows systems, getch() is often found as part of the conio library (an old and outdated screen/terminal library). I *think* that it exists on all Windows systems, but am not sure since I am a Linux guy, not a Windows guy.
The conio library does not typically exist in *nix, nor the curses library in Windows. There are ports of curses for Windows (pdcurses being a prime example) and I'm sure somebody has ported conio library to *nix.
EDIT: By the way, learn to use code tags properly: [code]Your code here[/code]
