Expressions and Evaluation

What will be the output of the following C code?

#include
int main()
{
int x = 2, y = 0;
int z = (y++) ? y == 1 && x : 0;
printf("%d\n", z);
return 0;
}
1. 0
2. 1
3. Undefined behaviour
4. Compile time error
What will be the output of the following C code?

#include
int main()
{
int x = 1;
int y = x == 1 ? getchar(): 2;
printf("%d\n", y);
}
1. Compile time error
2. Whatever character getchar function returns
3. Ascii value of character getchar function returns
4. 2
What will be the output of the following C code?

#include
int main()
{
int x = 1;
short int i = 2;
float f = 3;
if (sizeof((x == 2) ? f : i) == sizeof(float))
printf("float\n");
else if (sizeof((x == 2) ? f : i) == sizeof(short int))
printf("short int\n");
}
1. float
2. short int
3. Undefined behaviour
4. Compile time error
What will be the output of the following C code?
#include
int main()
{
int a = 2;
int b = 0;
int y = (b == 0) ? a :(a > b) ? (b = 1): a;
printf("%d\n", y);
}
1. Compile time error
2. 1
3. 2
4. Undefined behaviour
What will be the output of the following C code?

#include
int main()
{
int y = 1, x = 0;
int l = (y++, x++) ? y : x;
printf("%d\n", l);
}
1. 1
2. 2
3. Compile time error
4. Undefined behaviour
What will be the output of the following C code?

#include
void main()
{
int k = 8;
int m = 7;
int z = k < m ? k++ : m++;
printf("%d", z);
}
1. 7
2. 8
3. Run time error
4. 15
What will be the output of the following C code?

#include
void main()
{
int k = 8;
int m = 7;
int z = k < m ? k = m : m++;
printf("%d", z);
}
1. Run time error
2. 7
3. 8
4. Depends on compiler
What will be the output of the following C code?

#include
void main()
{
1 < 2 ? return 1 : return 2;
}
1. returns 1
2. returns 2
3. Varies
4. Compile time error
What will be the output of the following C code?
#include
void main()
{
int k = 8;
int m = 7;
k < m ? k++ : m = k;
printf("%d", k);
}
1. 7
2. 8
3. Compile time error
4. Run time error
What will be the output of the following C code?

#include
void main()
{
int k = 8;
int m = 7;
k < m ? k = k + 1 : m = m + 1;
printf("%d", k);
}
1. Compile time error
2. 9
3. 8
4. Run time error
What will be the final values of a and c in the following C statement? (Initial values: a = 2, c = 1)
c = (c) ? a = 0 : 2;
1. a = 0, c = 0;
2. a = 2, c = 2;
3. a = 2, c = 2;
4. a = 1, c = 2;
What will be the data type of the following expression? (Initial data type: a = int, var1 = double, var2 = float)

expression (a < 50)? var1 : var2;
1. int
2. float
3. double
4. Cannot be determined
Which expression has to be present in the following?

exp1 ? exp2 : exp3;
1. exp1
2. exp2
3. exp3
4. all of the mentioned
What will be the final value of c in the following C code snippet? (Initial values: a = 1, b = 2, c = 1)

c += (-c) ? a : b;
1. Syntax Error
2. c = 1
3. c = 2
4. c = 3
The following C code can be rewritten as _______

c = (n) ? a : b;
1. if (!n)c = b;
  else c = a;
2. if (n <;= 0)c = b;
  else c = a;
3. if (n > 0)c = a;
  else c = b;
4. All of the mentioned

Expressions and Evaluation

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