Interested to Buy Any Domain ? << Click Here >> for more details...
Write code for atoi(x) where x is hexadecimal string.
- 5 Answers
- 26586 Views
- Adobe, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / john huang
int n=strlen(x) // where x is pointer to hex string
int sum=0;
int leftshift=0;
while(n>0)
{
if((x[n-1]>='0') && (x[n-1]<='9'))
sum+=(x[n-1]-'0')<<leftshift;
if((x[n-1]>='A') && (x[n-1]<='F'))
sum+=(x[n-1]-'A'+10)<<leftshift;
if((x[n-1]>='a') && (x[n-1]<='f'))
sum+=(x[n-1]-'a'+10)<<leftshift;
n--;
leftshift+=4;
}
| Is This Answer Correct ? | 7 Yes | 3 No |
Answer / mohammed sardar
int n=strlen(x) // where x is pointer to hex string
int sum=0;
int leftshift=0;
while(n>0)
{
if((x[n-1]>='0') && (x[n-1]<='9'))
sum+=(x[n-1]-'0')<<leftshift;
if((x[n-1]>='A') && (x[n-1]<='F'))
sum+=(x[n-1]-'A'+10)<<leftshift;
if((x[n-1]>='f') && (x[n-1]<='f'))
sum+=(x[n-1]-'a'+10)<<leftshift;
n--;
leftshift+=4;
}
| Is This Answer Correct ? | 10 Yes | 7 No |
Hi,
Refer below link to know how atoi() lib fuction works.
http://www.cppreference.com/wiki/c/string/atoi
And find the equalent code which i have written here.
#include<stdio.h>
#include<conio.h>
int MyAtoi(char *cptr);
main()
{
/*Give different inputs like "12.3432", "a4523"," 123"
"abcd", "1234f" and find the qualent output*/
char *cptr = "123445";
printf("INTEGER EQU IS: %d\n", MyAtoi(cptr));
getch();
}
int MyAtoi(char *cptr)
{
int iptr = 0;
while((*cptr != '\0') && ((*cptr >= 48 && *cptr <= 57) ||
(*cptr == 32)))
{
if(*cptr != ' ')
iptr = (iptr * 10) + (*cptr - 48);
cptr++;
}
return iptr;
}
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / audrius
long l = strtol(string, NULL, 16);
//or, if you need unsigned (which you usually do with hexes)
unsigned long ul = strtoul(string, NULL, 16);
| Is This Answer Correct ? | 1 Yes | 0 No |
Explain the difference between getch() and getche() in c?
Can you explain what keyboard debouncing is, and where and why we us it? please give some examples
Place the #include statement must be written in the program?
There are N egg baskets and the number of eggs in each basket is a known quantity. Two players take turns to remove these eggs from the baskets. On each turn, a player must remove at least one egg, and may remove any number of eggs provided they all belong to the same basket. The player picking the last egg(s) wins the game. If you are allowed to decide who is going to start first, what mathematical function would you use to decide so that you end up on the winning side?
What is a static function in c?
A array contains dissimilar element how can we count, and A array contains dissimilar element how can we store in another array with out repetition.
Write a c pgm for leap year
11 Answers College School Exams Tests, IBM, TCS,
in multiple branching construct "default" case is a) optional b) compulsarily c) it is not include in this construct d) none of the above
1 232 34543 4567654 can anyone tell me how to slove this c question
Explain how do you list files in a directory?
Do you know null pointer?
how should functions be apportioned among source files?
C 
