Practice Memory Allocation – What will be result of the following program?
#include
#include
int myalloc(char *x, int n){
x= (char *)malloc(n*sizeof(char));
memset(x,,n*sizeof(char));
}
int main(){
char *g="String";
myalloc(g,20);
printf("The string is %s",g);
return 0;
}
Practice Strings – What will be the result of the following program?
#include
#include
char *gxxx(){
static char xxx[1024];
return xxx;
}
int main(){
char *g="string";
strcpy(gxxx(),g);
g = gxxx();
strcpy(g,"oldstring");
printf("The string is : %s",gxxx());
return 0;
}
Practice Variable Number of Arguments – In the following code segment what will be the result of the function
#include
int main(){
unsigned int x=-1;
int y;
y = ~0;
if(x == y)
printf("same");
else
printf("not same");
printf("%u %d",x,y);
return 0;
}
Practice Memory Allocation – What will the following program do?
#include
#include
#include
int main(){
int i;
char a[]="String";
char *p="New Sring";
char *Temp;
Temp=a;
a=malloc(strlen(p) + 1);
strcpy(a,p); //Line no:9//
p = malloc(strlen(Temp) + 1);
strcpy(p,Temp);
printf("(%s, %s)",a,p);
free(p);
free(a);
return 0;
} Chose correct option
Practice Control Instructions – What will be output of following c program?
#include
int main(){
int i=0;
for(i=0;i<20;i++){
switch(i){
case 0:i+=5;
case 1:i+=2;
case 5:i+=5;
default: i+=4; break;
}
printf("%d ",i);
}
return 0;
}
Practice Variable Number of Arguments – What will be output of following c program?
#include
int main(){
enum number { a=-1, b= 4,c,d,e};
printf("%d",e);
return 0;
}
Practice Declarations and Initializations – What will be output of following c program?
#include
long unsigned static const ddlg(){
static const long unsigned a=0101;
return a;
}
int main(){
long number;
number=ddlg();
printf("%X",number);
return 0;
}
Practice Basic Concept – User defined data types are:
Practice Basic Concept – Derived data types are:
Practice Control Instructions – What will be the output of the following “C” program?
#include
int main(){
char c=-64;
int i=-32;
unsigned int u =-16;
if(c>i){
printf("pass1");
if(c
else
printf("Fail2");
}
else
printf("Fail1รยขรขยยฌรย);
if(c==i)
printf("pass2");
else
printf("Fail2");
return 0;
}
Practice Pointers – What will be the output of the following “C” program?
struct adr {
char *name;
char *city;
int zip;
};
struct adr *adradr;
Which are valid references?
Practice C Preprocessor – What will be the output of the following “C” program?
#include
#define max(a,b) (a>b?b:a)
#define squre(x) x*x
int main()
{
int i = 2, j = 3, k = 1;
printf ("%d %d", max(i,j), squre(k));
return 0;
}
Practice Input / Output – float x, y, z;
scanf (“%f %f”, &x, &y);
If input stream contains “4.2 3 2.3 …”
What will x and y contain after scanf?
Practice Command Line Arguments – What will be the output of the following “C” program?
#include
int main(x,y)
int x; char *y[];
{
printf("%d %s", x, y[1]);
return 0;
}output when invoked as a.out arg1
Practice Variable Number of Arguments – Primitive data type are: