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Bitwise Operator using C Homework solution


Bitwise Class Activity

  • Write a program that will ask the user for an unsigned integer.
  • Then ask the user whether they want to shift right or left.
  • Then ask them how many bits to shift it.
  • After getting all the values to perform the bitwise operation.
  • Print out the resulting integer value in decimal.
  • No getopt is needed.
  • Use integer value 8, use left shift, use 2 bits for how many.

Solution:#include < stdio.h> int main(int argc, char** argv) { char buffer[50]; unsigned val; char dir; int amount; int result; printf("Please enter an unsigned integer: "); //Read in string fgets(buffer, sizeof(buffer) - 1, stdin); //Get int from string sscanf(buffer, "%u", &val); printf("Shift left or right? (L or R): "); //Read in string fgets(buffer, sizeof(buffer) - 1, stdin); //Get char from string sscanf(buffer, "%c", &dir); printf("How many bits to shift: "); //Read in string fgets(buffer, sizeof(buffer) - 1, stdin); //Get int from string sscanf(buffer, "%d", &amount); //Shift Left if (dir == 'l' || dir == 'L') { result = val << amount; printf("Shifting %u left by %d gives %d\n", val, amount, result); } //Shift Right else { result = val >> amount; printf("Shifting %u right by %d gives %d\n", val, amount, result); } }