What are header files and explain what are its uses in c programming?
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int i =10 main() { int i =20,n; for(n=0;n<=i;) { int i=10 i++; } printf("%d", i);
What is meant by recursion?
array of pointer pointer to array pointer to pointer
Explain the properties of union.
#include<stdio.h> void main() { int a,b,c; a=b=c=1; c=++a || ++b && ++c; printf("%d\t%d\t%d",a,b,c); }
Why do we use return in c?
#include<stdio.h> main(0 { printf("\n %d %d %d",sizeof(3),sizeof("3"),sizeof(3)); }
Place the #include statement must be written in the program?
Why is c called "mother" language?
What is malloc and calloc?
What are register variables? What are the advantage of using register variables?
A.C func() { pritnf(" in fuction %d",MACRO); } MAIN.c testfunc() { #define MACRO 10 printf("in test function %d", MACRO); } main() { printf("in main %d",MACRO); func(); testfunc(); getch(); }