Which command is more efficient?
*(ptr+1) or ptr[1]
Answer Posted / poornima
If ptr is declared as a pointer like int *ptr; *(ptr+1) is
more efficient.
If ptr is declared as an array like int ptr[20]; ptr[1] is
more efficient.
So, it depends upon how we r declaring ptr as a pointer or
as an array.
Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
How many types of functions are there in c?
What are loops c?
Is it valid to address one element beyond the end of an array?
Read N characters in to an array . Use functions to do all problems and pass the address of array to function. 1. Print only the alphabets . If in upper case print in lower case vice versa. 2. Enter alphanumeric characters and form 2 array alphaets and digits.Also print the count of each array. 3. Find the count of a certain character. 4. Print the positions where a certain character occured. 5. Print the characters between successive array elements. 6. Find the largest and smallest charcter. How many times it each one occured. 7. Enter a certain range. Print out the array elements which occured between these range. 8. Reverse a character array without using another array. 9. Reverse an array region. 10. Replace a the array elements with it next character . Use a after z. 11. Code the array element with certain character as first alphabet. 12. Duplicate all the vowels in a character array. What is the new count. 13. Delete the vowels in a character array. What is the new array count. 14. Print the count of all characters in the array. 15. Enter n alphabets and store a upto tht charcter in array.What is the array count? 16. Sort a character array. 17. Merge 2 character arrays largearray,smallarray. 18. Find the pair with largest number of characters in between. 19. Find the numerical value of a charcter array. 20. Store n numeral characters in an arrray. Insert another numeral character in a certain position. 21. Insert a character in a sorted array. 22. Merge 2 sorted arrays in sorted fashion. 23. Duplicate the least occuring character. 24. Write a menu driven program to circular right/left shift an array of n elements. 25. Is the character array palindrome? if not make it palindrome. 26. Concatenate the first n charaters to the end of the string. 27. Print all n group of chracters which are palindrome. 28. Concatneate the reverse of last n characters to the array.
What is operator precedence?
What do you know about the use of bit field?
What is the difference between local variable and global variable in c?
Do pointers need to be initialized?
Can we change the value of static variable in c?
Explain what is a pragma?
develop algorithms to add polynomials (i) in one variable
WHAT IS THE DEFINATION OF IN TECHNOLOGY AND OFF TECHNOLOGY ?
What is a pointer on a pointer in c programming language?
Once I have used freopen, how can I get the original stdout (or stdin) back?
What does & mean in scanf?