Answer Posted / saugat biswas

Malloc:
Malloc allocates memory but does not initialize it.
Example: char *szPtr = ( char* ) malloc( sizeof( char ) *
100 );
Here szPtr is assigned 100 bytes. But the memory is not
initialized. It contains garbage.

Calloc:
Allocates a block of memory for an array of 'n' elements,
each of them 'l' bytes long, and initializes all its bits
to zero.
Example: char *szPtr = ( char* ) calloc( 100, sizeof(
char ));
Here szPtr is assigned 100 bytes & the memory is
initialized to 0.

What is the difference between global variables and local variable

995

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Why is c++ called oops?

1076

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What are the 3 levels of programming languages?

994

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Where the memory to the static variables is allocated?

1002

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When is dynamic checking necessary?

1042

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How can a struct in c++ differs from a struct in c?

983

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Who was the creator of c++?

994

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Using a smart pointer can we iterate through a container?

1022

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Explain the difference between overloading and overriding?

1082

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Explain the properties and principles of oop.

960

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What does iomanip mean in c++?

1130

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What are the three forms of cin.get() and what are their differences?

1153

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How would you use the functions memcpy(), memset(), memmove()?

1033

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What does 7/9*9 equal ? a) 1 b) 0.08642 c) 0

909

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Which programming language's unsatisfactory performance led to the discovery of c++?

1261

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