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Full Discussion: Unclear pointer and array
Top Forums Programming Unclear pointer and array Post 302884210 by Akshay Hegde on Saturday 18th of January 2014 11:58:34 AM
Old 01-18-2014
Could this help you ?

Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

main(){

int start = 3;
int stop  = 9;
const char src[] = "A test string";

// print 6 char from src+start 
printf("%.*s\n",stop-start, src + start);

// &src[3] == src+3
printf("%s %s\n", &src[3], src+3);

// what is src+start ?
printf("src + %d = %s\n",start,src+start);

// print nchar from src+start
int nchar = 9;
printf("%.*s\n",nchar, src + start);


}

Code:
$ gcc test2.c
$ ./a.out 
est st
est string est string
src + 3 = est string
est strin

---edit----

Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

main(){

int start = 3;
int stop  = 9;
const char src[] = "A test string";

// I confused from  variable "count" that whether you like to print "char-start to char-stop" '3 - 9' or n char from start ?
unsigned int count = stop - start;

// print 6 char from src+start 
printf("char %d-%d = %d ~ %.*s\n",start,stop,count,count, src + start);

// n char specified in stop from starting
printf("Total char %d from start ~ %.*s\n",stop,stop,src + start);


}

Code:
$ ./a.out 
char 3-9 = 6 ~ est st
Total char 9 from start ~ est strin

Last edited by Akshay Hegde; 01-18-2014 at 01:24 PM..
This User Gave Thanks to Akshay Hegde For This Post:
yifangt
 

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LEARN ABOUT OPENSOLARIS

fcutf8len

FcUtf8Len(3)															      FcUtf8Len(3)

NAME

       FcUtf8Len - count UTF-8 encoded chars

SYNOPSIS

       cc [ flag... ] file... -lfontconfig [ library... ]

       #include <fontconfig.h>

       FcBool FcUtf8Len (FcChar8 *src, int len, int *nchar, int *wchar);

DESCRIPTION

       Counts  the  number of Unicode chars in len bytes of src.  Places that count in nchar.  wchar contains 1, 2 or 4 depending on the number of
       bytes needed to hold the largest unicode char counted.  The return value indicates whether src is a well-formed UTF8 string.

VERSION

       Fontconfig version 2.5.0

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWfontconfig		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Volatile			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |See XInitThreads(3X11)	   |
       +-----------------------------+-----------------------------+

								 13 November 2007						      FcUtf8Len(3)
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