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 are the decision making statements in C++? Explain if statement with an example?

1101

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What is the use of ::(scope resolution operator)?

1077

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Can I run c program in turbo c++?

1038

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Define vptr.

1039

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What is #include iomanip?

1014

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Given the following seqment of code containing a group of nested if instructions: y = 9; if ((x==3) || (x == 5)) y++; else if (x == 2) y *= 2; else if (x == ) y-= 7; else y = 8; if the value of x is 4 before the nested IFs are executed, what is the value of y after the nested IFs are executed?

2036

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What are signs of manipulation?

1069

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Can you explicitly call a destructor on a local variable?

1030

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Is c++ fully object oriented?

979

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What is a forward referencing and when should it be used?

1166

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How is data hiding achieved in c++?

1085

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find the two largest values among the 6 numbers using control structures : do-while,for,if else,nestedif- else ,while. one or two of them.

2555

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write a function signature with various number of parameters.

1049

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can any one help to find a specific string between html tags which is changed to a sting.. weather.html looks (for location) is somewhere #include #include #include using namespace std; string find_field(string myPage,string); int main (void) { string page, line, location, temperature; ifstream inputFile("weather.xml"); while(getline(inputFile, line)) { page.append(line); line.erase(); } // Now page is a string that contains the whole xml page // Here you need to write something that finds and // extracts location and temperature from the XML // data in the string page and stores them in // the strings location and temperature respectively location=find_field(page,"location"); temperature=find_field(page,"temp_c"); cout << "Location: "<

2058

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Is c++ a good beginners programming language?

1082

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