Answer / guest

These are the system calles used to allocate the memory.
brk will call internally when u call malloc func.

what will be the output: main(){char ch;int a=10;printf("%d",ch);}

36 Answers   Accenture, TCS, Wipro,

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what is pointer ? what is the use of pointer?

6 Answers   Infosys,

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How can I read a directory in a C program?

2 Answers   Bright Outdoor, Wipro,

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1,1,5,17,61,217,?,?.

3 Answers   Apple,

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what are the static variables

8 Answers   HCL, iFlex, TCS, Wipro,

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what are far pointers?

1 Answers  

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code for quick sort?

0 Answers  

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Write a C program to find the smallest of three integers, without using any of the comparision operators.

7 Answers   TCS,

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Why doesn't C have nested functions?

2 Answers  

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You have an int array with n elements and a structure with three int members. ie struct No { unsigned int no1; unsigned int no2; unsigned int no3; }; Point1.Lets say 1 byte in the array element is represented like this - 1st 3 bits from LSB is one number, next 2 bits are 2nd no and last 3 bits are 3rd no. Now write a function, struct No* ExtractNos(unsigned int *, int count) which extracts each byte from array and converts LSByte in the order mentioned in point1.and save it the structure no1, no2, no3. in the function struct No* ExtractNos(unsigned int *, int count), first parameter points to the base address of array and second parameter says the no of elements in the array. For example: if your array LSB is Hex F7 then result no1 = 7, no2 = 2, no3 = 7. In the same way convert all the elements from the array and save the result in array of structure.

2 Answers   Qualcomm,

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we have to use realloc only after malloc or calloc ? or we can use initially with out depending on whether we are using malloc or calloc in our program ?

2 Answers  

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Explain is it better to bitshift a value than to multiply by 2?

0 Answers  

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