Answer / nakul sharma

Memory allocated for any structure is equal to the sum of
memory required by each structure member.

Example: In a structure 'abc' below, memory allocated will
be 7 Bytes (2 Bytes for int a + 1 Byte for char b + 4 Bytes
for float c ina 32 bit processor)
struct abc
{
int a;
char b;
float c;
}

But in union memory allocated for it is equal to the memory
required by the biggest (in terms of memory it use) union
member.

Example: In a union 'abc' below, memory allocated will be 4
Bytes as float c is the biggest union member here and it
uses 4 Bytes of memory in 32 bit processor.

union abc
{
int a;
char b;
float c;
}

Answer / karthikkumareg

in structure struct key word is used but in union union key
word is used.

Answer / raj kumar

struct can hold multiple data types.
Like u can define a date structure....
but union can multiple data types which includes struct also

union x
{
int x;
struct
{
...
...
}
}

related to rdbms query .

2 Answers  

---

advantages of pointers?

3 Answers  

---

The purpose of this exercise is to benchmark file writing and reading speed. This exercise is divided into two parts. a). Write a file character by character such that the total file size becomes approximately >10K. After writing close the file handler, open a new stream and read the file character by character. Record both times. Execute this exercise at least 4 times b). Create a buffer capable of storing 100 characters. Now after generating the characters, first store them in the buffer. Once the buffer is filled up, store all the elements in the file. Repeat the process until the total file size becomes approximately >10K.While reading read a while line, store it in buffer and once buffer gets filled up, display the whole buffer. Repeat the exercise at least 4 times with different size of buffer (50, 100, 150 …). Records the times. c). Do an analysis of the differences in times and submit it in class.

0 Answers  

---

Which sorting algorithm is the best?

1 Answers  

---

who is the father of c

4 Answers   Infosys,

---

What are near, far and huge pointers?

0 Answers   Hexaware, Thomson Reuters, Virtusa,

---

How do you access command-line arguments?

1 Answers  

---

What is string length in c?

0 Answers  

---

Write a function in c to find the area of a triangle whose length of three sides is given.

2 Answers  

---

What is the purpose of #pragma directives in C?

2 Answers  

---

why arithmetic operation can’t be performed on a void pointer?

1 Answers  

---

hello everybody can we change a the adress of a variabl i mean can i put for exemple for a int *p: &p=6 ?????????

1 Answers  

---