C Programming and Technical

Question. What is FILE?
Answer. FILE is a predefined data type. It is defined in stdio.h file.

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FILE is a predefined structure.It is defined in stdio.h file.the size of FILE structure is 16 byte
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C Other Question

Question. What are the facilities provided by preprocessor?
Answer. file inclusion
substitution facility
conditional compilation Question. What do the functions atoi(), itoa() and gcvt() do?
Answer. atoi() is a macro that converts integer to character.
itoa() It converts an integer to string
gcvt() It converts a floating point number to string