What will be the output of the program on GCC compiler?
Practice Pointers –
What will be the output of the program on GCC compiler?
#include<stdio.h>
int main() {
printf("%d, %d
", sizeof(NULL), sizeof(""));
return 0;
} What is the output of the following program on GCC compiler?
Practice Arrays –
What is the output of the following program on GCC compiler?
#include<stdio.h>
int main() {
int a[5] = {2, 3};
printf("%d, %d, %d
", a[2], a[3], a[4]);
return 0;
} What will be the output of the following program on GCC compiler?
Practice Arrays –
What will be the output of the following program on GCC compiler?
#include <stdio.h>
void main(){
int arr[]={10,20,30,40,50};
int i, *k;
k = &arr[4]-4;
for(i=0; i<=4; i++){
printf("%d,",*k);
k++;
}
}What will be the output of the following program on GCC compiler?
Practice Pointers –
What will be the output of the following program on GCC compiler?
#include <stdio.h>
int main() {
int x=30, *y, *z;
y = &x; /* Assume address of x is 500 */
z = y;
*y= *z;
x++;
printf("x=%d, y=%u, z=%u
", x, *y, z);
return 0;
}What will be the output of the program on a 64 bit GCC compiler?
Practice Pointers –
What will be the output of the program on a 64 bit GCC compiler?
#include<stdio.h>
int main() {
float *p;
int *q;
printf("%d %d
", sizeof(p), sizeof(q));
return 0;
} What will be the output of the following program on GCC compiler?
Practice C Preprocessor –
What will be the output of the following program on GCC compiler?
#include<stdio.h>
#define FUN(arg) do{if(arg)printf("Hello World...", "
");}while(--i)
int main() {
int i=2;
FUN(i<3);
return 0;
} What will be the output of the following program on GCC compiler ?<
Practice C Preprocessor –
What will be the output of the following program on GCC compiler ?
#include<stdio.h>
#define SWAP(a, b) int t;t=a;a=b;b=t;
int main() {
int a=10, b=12;
SWAP(a, b);
printf("a = %d, b = %d
", a, b);
return 0;
} What will be the output of the following program on GCC compiler?
Practice C Preprocessor –
What will be the output of the following program on GCC compiler?
#include <stdio.h>
#define CUBE(x) (x*x*x)
int main() {
int a, b=3;
a = CUBE(b++);
printf("%d, %d
", a, b);
return 0;
} What will be the output of the following program on GCC compiler?
Practice C Preprocessor –
What will be the output of the following program on GCC compiler?
#include <stdio.h>
#define SQR(x)(x*x)
int main() {
int a, b=3;
a = SQR(b+2);
printf("%d
", a);
return 0;
} What will be the output of the following program on GCC compiler?
Practice C Preprocessor –
What will be the output of the following program on GCC compiler?
#include<stdio.h>
#define MAN(x, y) ((x)>(y)) ? (x):(y);
int main() {
int i=10, j=5, k=0;
k = MAN(++i, j++);
printf("%d, %d, %d
", i, j, k);
return 0;
} What will be the output of the following program on GCC compiler?
Practice Control Instructions –
What will be the output of the following program on GCC compiler?
#include<stdio.h>
int main() {
int x = 3;
float y = 3.0;
if(x == y){
printf("x and y are equal");
}
else {
printf("x and y are not equal");
}
return 0;
} What will be the output of the following program on GCC compiler?
Practice Functions –
What will be the output of the following program on GCC compiler?
#include<stdio.h>
#include<string.h>
int main() {
char dest[] = {97, 97, 0};
char src[] = "aaa";
int i;
if((i = memcmp(dest, src, 2))==0) {
printf("Got it");
}
else {
printf("Missed");
}
return 0;
} What will be the output of the program on GCC compiler?
Practice Declarations and Initializations –
What will be the output of the program on GCC compiler?
#include<stdio.h>
int main() {
float a=0.7;
if(a < 0.7){
printf("C
");
}
else {
printf("C++
");
}
return 0;
} What will be the output of the following program on GCC compiler?
Practice Functions –
What will be the output of the following program on GCC compiler?
#include <stdio.h>
int fun(int);
int i;
int main(){
int j;
for(;;){
if(j=fun(i)){
printf("j=%d
",j);
}
else{
break;
}
}
return 0;
}
int fun(int x){
static int a=2;
a--;
return (a-x);
}What will be the output of the following program on GCC compiler?
Practice Declarations and Initializations –
What will be the output of the following program on GCC compiler?
#include<stdio.h>
int main() {
float f=43.20;
printf("%e, ", f);
printf("%f, ", f);
printf("%g", f);
return 0;
}