Do I need to repeat inserting '\0' n - strlen(src) times in case
strlen(str) less than n. "C: A reference Manual, 5th" mentions this in
sec 13.3. "K&RC, 2nd" says that insert one '\0' under the same
condition in sec B.3.
Thank you for your time.
/
*************** *************** *************** *************** *************** ****
* copy n characters in string src to dst.
*************** *************** *************** *************** *************** ***/
char *strncpy(char *dst, const char *src, size_t n)
{
char *p = dst;
while (n-- && (*dst++ = *src++))
;
return p;
} 2 2454
lovecreatesbea. ..@gmail.com wrote:
Do I need to repeat inserting '\0' n - strlen(src) times in case
strlen(str) less than n.
The Standard strncpy does. You can do whatever you want with your
private variations, but do avoid nameclashes with the Standard library,
and give a better more descriptive name. The Standard has a lot of
constraints, not least of which are historical ones, but you can do
better than cryptic six and seven letter names.
snip
"lovecreatesbea ...@gmail.com" <lo************ ***@gmail.comwr ites:
[about strncpy]
Do I need to repeat inserting '\0' n - strlen(src) times in case
strlen(str) less than n.
Yes, strncpy always writes to every byte in the output buffer.
--
char a[]="\n .CJacehknorstu" ;int putchar(int);in t main(void){unsi gned long b[]
={0x67dffdff,0x 9aa9aa6a,0xa77f fda9,0x7da6aa6a ,0xa67f6aaa,0xa a9aa9f6,0x11f6} ,*p
=b,i=24;for(;p+ =!*p;*p/=4)switch(0[p]&3)case 0:{return 0;for(p--;i--;i--)case+
2:{i++;if(i)bre ak;else default:continu e;if(0)case 1:putchar(a[i&15]);break;}}} This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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Hi,
Is the following strncpy implementation
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char *
strncpy ( char *s, const char *t, size_t n )
{
char *p = s;
size_t i = 0;
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I am a C programming beginner...
I wonder, why strncpy(s, t, n) does not put '\0' at the end of the string.
Because when I output the copied string, it output more than what I want,
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But, sometime I don't need put '\0' and it work well??
Like
strncpy(s, t, n);
strcat(s, t1);
.....
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E. Robert Tisdale wrote:
>
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In my opinion the following code should crash when run with
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