Answer Posted / hrpynux@gmail.com

Built-in(Library) Functions
The system provided these functions and stored in the library. Therefore it is also called Library Functions. e.g. scanf(), printf(), strcpy, strlwr, strcmp, strlen, strcat etc. To use these functions, you just need to include the appropriate C header files.

#include { printf("Hello"); } how compile time affects when we add additional header file .

1897

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Explain logical errors? Compare with syntax errors.

1076

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Explain do array subscripts always start with zero?

1241

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Given only putchar (no sprintf, itoa, etc.) write a routine putlong that prints out an unsigned long in decimal. [ I gave the obvious solution of taking % 10 and / 10, which gives us the decimal value in reverse order. This requires an array since we need to print it out in the correct order. The interviewer wasn't too pleased and asked me to give a solution which didn't need the array ].

1097

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Which programming language is best for getting job 2020?

1052

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What is c++ used for today?

1110

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What are the c keywords?

1207

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How do you print only part of a string?

1023

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application areas a 'c' a) operating system b) graphics, interpreter, assembler c) program evalution, communication softwares d) all the above

1069

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Is there a way to compare two structure variables?

1127

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What does the error 'Null Pointer Assignment' mean and what causes this error?

1225

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Give differences between - new and malloc() , delete and free() ?

1100

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Can the sizeof operator be used to tell the size of an array passed to a function?

1118

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Why is c so popular?

1165

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How can you increase the size of a statically allocated array?

1081

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