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Functions in C Interview Questions & Answers

Below we have listed all the Functions in C Interview Questions and answers. Feel free to comment on any Functions in C Interview Questions or answer by the comment feature available on the page.

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Functions in C Interview Questions & Answers

A function is a group of statements that together perform a task. Every C program has at least one function, which is main(), and all the most trivial programs can define additional functions. You can divide up your code into separate functions. In general, functions are blocks of code that perform a number of pre-defined commands to accomplish something productive. You can either use the built-in library functions or you can create your own functions. Functions that a programmer writes will generally require a prototype.

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Write a Program to convert decimal to binary no.
3.1 Rating
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What is meant by malloc function
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Why should I prototype a function?
4.0 Rating
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Is it better to use a macro or a function?
3.4 Rating
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How do you use a pointer to a function ?
4.4 Rating
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How would you use the functions sin(),pow(),sqrt()?
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How do you use a pointer to a function?
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Advantages of a macro over a function ?
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In c , main() is a function . and where is defined main() in c. bcz every function has three parts.
1>. decleration
2>. definition.
3>. calling

3.9 Rating
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What is an argument ? differentiate between formal arguments and actual arguments?
3.3 Rating
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Is it possible to execute code even after the program exits the main() function?
3.8 Rating
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What is the difference between printf() and sprintf() ?
4.2 Rating
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How to convert decimal to octal and hexadecimal in c program?
2.5 Rating
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What is the output of
void main()
{
int a = (1,2,3);
printf("%d",a);
}

with reason.
3.5 Rating
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Write a program with out using
main() function?
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How do you determine whether to use a stream function or a low-level function?
3.3 Rating
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Does there exist any other function which can be used to convert an integer or a float to a string ?
3.6 Rating
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What is the purpose of main( ) function ?
4.7 Rating
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output of the following program
void main()
{
unsigned i;
i=100*400;
printf(

4.7 Rating
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Is it better to use a macro or a function ?
3.8 Rating
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