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C Programming :: Floating Point Issues

Floating Point Issues - General Questions
Floating Point Issues - Find Output of Program

  1. What will be the output of the program?

    #include 
int main() 
{   
    float a=0.7;   
    if(a 0.7)         
        printf("C\n");  
    else      
        printf("C++\n");    
    return 0;
 }

    2. A.

    C
    B.

    C++
    C.

    Compiler error
    D.

    Non of above

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  2. What will be the output of the program?

     #include
 int main()
 {     
    float *p; 
    printf("%d\n", sizeof(p));       
    return 0;
 }

    3. A.

    2 in 16bit compiler, 4 in 32bit compiler
    B.

    4 in 16bit compiler, 2 in 32bit compiler
    C.

    4 in 16bit compiler, 4 in 32bit compiler
    D.

    2 in 16bit compiler, 2 in 32bit compiler

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  3. What will be the output of the program?

     #include
 #include<math.h>
 int main() 
 {   
     printf("%f\n", sqrt(36.0));       
     return 0;
 }

    4. A.

    6.0
    B.

    6
    C.

    6.000000
    D.

    Error: Prototype sqrt() not found.

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  4. What will be the output of the program?

     #include
 #include<math.h>
 int main() 
 {   
     printf("%d, %d, %d\n", sizeof(3.14f), sizeof(3.14), sizeof(3.14l));   
     return 0; 
 }

    5. A.

    4, 4, 4
    B.

    4, 8, 8
    C.

    4, 8, 10
    D.

    4, 8, 12

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  5. What will be the output of the program?

     #include
 int main()
 {   
     float f=43.20;   
     printf("%e, ", f);       
     printf("%f, ", f);     
     printf("%g", f);  
     return 0; 
 }

    6. A.

    4.320000e+01, 43.200001, 43.2
    B.

    4.3, 43.22, 43.21
    C.

    4.3e, 43.20f, 43.00
    D.

    Error

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  6. What will be the output of the program?

     #include
 int main()
 {    
    float a=0.7;  
    if(a 0.7f)         
       printf("C\n");   
     else      
      printf("C++\n");    
    return 0; 
 }

    7. A.

    C
    B.

    C++
    C.

    Compiler error
    D.

    Non of above

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  7. What will be the output of the program?

     #include
 #include<math.h>
 int main() 
  {   
    float n=1.54;  
    printf("%f, %f\n", ceil(n), floor(n));   
    return 0; 
  }

    8. A.

    2.000000, 1.000000
    B.

    1.500000, 1.500000
    C.

    1.550000, 2.000000
    D.

    1.000000, 2.000000

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  8. What will be the output of the program?

    #include
 int main() 
 {   
    float d=2.25;  
    printf("%e,", d);     
    printf("%f,", d);     
    printf("%g,", d);     
    printf("%lf", d);  
    return 0; 
 }

    9. A.

    2.2, 2.50, 2.50, 2.5
    B.

    2.2e, 2.25f, 2.00, 2.25
    C.

    2.250000e+000, 2.250000, 2.25, 2.250000
    D.

    Error

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