Question

Describe library functions ? Explain any four in detail.

Answer 1

The C language is accompanied by a number of standard library functions which carry out various useful tasks. In particular, all input and output operations (e.g., writing to the terminal) and all math operations (e.g., evaluation of sines and cosines) are implemented by library functions.

Most library positions focus on one of the following:

user services (connecting people to the information they need)

technical services (ordering, cataloging, and preparing materials)

computer services (maintain library databases, software programming, web page design)

administrative services (manage the library and services, negotiate contracts with vendors, supervise library employees, prepare budgets)

Answer 2

Library functions are predefined built-in functions that are included in the 'programming language' used to 'perform a specific task'.  

Explanation:

• <cstdio> Includes function prototypes for the 'C-style standard input/output library functions' and information used by them. This header file substitutes the '< stdio.h > header file'.
• <cmath> Includes function prototypes for 'math library functions'. This header file substitutes the '<math.h> header file'.
• <ctime> Includes function prototypes for 'manipulating the time and date'. This header file substitutes the '<time.h> header file'.
• <cstring> Includes function prototypes for 'C-style string-processing functions'. This header file substitutes the '<string.h> header file'.

To know more

Explain library function?

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All library functions available are grouped under ............. file. Fill in the blank.

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