Answer Posted / priya

The malloc function allows the programmer to create a block of memory of a given size:

malloc ( long integer lBlockSize ) returns void *

If we decide, during the execution of the program, that we might need to expand, or contract this memory block, we can use the realloc function:

realloc ( void * pBlock, long int lNewBlockSize ) returns void *

When the memory block is no longer used, then it must be returned back to the operating system, by calling the free function:

free ( void * pBlock )

What would happen to X in this expression: X += 15; (assuming the value of X is 5)

1896

---

What is the use of sizeof () in c?

999

---

write an interactive C program that will encode or decode a line of text.To encode a line of text,proceed as follows. 1.convert each character,including blank spaces,to its ASCII equivalent. 2.Generate a positive random integer.add this integer to the ASCII equivalent of each character.The same random integer will be used for the entire line of text. 3.Suppose that N1 represents the lowest permissible value in the ASCII code,and N2 represents the highest permissible value.If the number obtained in step 2 above(i.e.,the original ASCII equivalent plus the random integer)exceeds N2,then subtract the largest possible multiple of N2 from this number,and add the remainder to N1.Hence the encoded number will always fall between N1 and N2,and will therefore always represent some ASCII character. 4.Dislay the characters that correspond to the encoded ASCII values.  The procedure is reversed when decoding a line of text.Be certain,however,that the same random number is used in decodingas was used in encoding.

3424

---

What is the meaning of 2d in c?

1070

---

What are the two types of structure?

1046

---

Which is not valid in C a) class aClass{public:int x;}; b) /* A comment */ c) char x=12;

1034

---

What is data structure in c programming?

1042

---

Compare and contrast compilers from interpreters.

1082

---

int main() { Int n=20,i; For(i=0;i<=n;i--) { Printf(“-“); Return 0;

1741

---

What are the different types of endless loops?

1033

---

What is keyword in c?

971

---

What would be an example of a structure analogous to structure c?

952

---

What is enumerated data type in c?

1041

---

what is the format specifier for printing a pointer value?

986

---

How are pointers declared in c?

1013

---