Explain command-line arguments in C.
Answer / nashiinformaticssolutions
Command-line arguments are passed to the main() function as argc (argument count) and argv (argument vector).
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Differentiate between declaring a variable and defining a variable?
#include<stdio.h> #include<conio.h> void main() { clrscr(); int a=0,b=0,c=0; printf("enter value of a,b"); scanf(" %d %d",a,b); c=a+b; printf("sum is %d",c); getch(); }
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You have an int array with n elements and a structure with three int members. ie struct No { unsigned int no1; unsigned int no2; unsigned int no3; }; Point1.Lets say 1 byte in the array element is represented like this - 1st 3 bits from LSB is one number, next 2 bits are 2nd no and last 3 bits are 3rd no. Now write a function, struct No* ExtractNos(unsigned int *, int count) which extracts each byte from array and converts LSByte in the order mentioned in point1.and save it the structure no1, no2, no3. in the function struct No* ExtractNos(unsigned int *, int count), first parameter points to the base address of array and second parameter says the no of elements in the array. For example: if your array LSB is Hex F7 then result no1 = 7, no2 = 2, no3 = 7. In the same way convert all the elements from the array and save the result in array of structure.