C Programming - Strings - Discussion
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Read more:"You cannot shake hands with a clenched fist."
- Indira Gandhi
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| 7. |
Which of the following function is correct that finds the length of a string? |
| [A]. |
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
{ length++; s++; }
return (length);
}
| [B]. |
int xstrlen(char s)
{
int length=0;
while(*s!='\0')
length++; s++;
return (length);
}
| | [C]. |
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
length++;
return (length);
}
| [D]. |
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
s++;
return (length);
}
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Answer: Option B
Explanation:
Option A is the correct function to find the length of given string.
Example:
#include<stdio.h>
int xstrlen(char *s)
{
int length=0;
while(*s!='\0')
{ length++; s++; }
return (length);
}
int main()
{
char d[] = "IndiaBIX";
printf("Length = %d\n", xstrlen(d));
return 0;
}
Output: Length = 8
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