Answer Posted / swetcha

extern is significant only with data declarations. In
function declarations, it can be used as a stylistic hint
to indicate that the function's definition is probably in
another source file, but there is no formal difference
between

extern int f();

and
int f();

What is sizeof int?

1049

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Explain pointer. What are function pointers in C?

1016

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What is meant by preprocessor in c?

948

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To print the pattern 1 2 3 4 5 10 17 18 19 6 15 24 25 20 7 14 23 22 21 8 13 12 11 10 9

2598

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What is a newline escape sequence?

1055

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Do pointers need to be initialized?

1018

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What are compound statements?

1084

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Multiply an Integer Number by 2 Without Using Multiplication Operator

724

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What is the 'named constructor idiom'?

1032

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What are the types of operators in c?

1002

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What are header files in c?

1021

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Which of the following operators is incorrect and why? ( >=, <=, <>, ==)

1110

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Explain the difference between call by value and call by reference in c language?

1053

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What is a substring in c?

998

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What does char * * argv mean in c?

999

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