Question

to use string library function ,
we include string. h header
file in our program. true or false
​

Answer 1

Answer:

===>>> The function prototypes in C are not compulsory. They're useful indications to the compiler so that it can do type checking on types which are passed into them. When you don't include string. h , a default signature is assumed for the function which is why you get the warning.

Answer 2

True. The string.h header file is used in C programming to include various string-related functions. Here are a few key points about using the string library in C:

• The string.h header file contains a set of functions that can be used to manipulate strings, such as strlen() to find the length of a string, and strcpy() to copy one string to another.

• To use these functions in your program, you must include the string.h header file at the top of your code. This is typically done using the preprocessor directive #include <string.h>.

• Once the string.h header file is included, you can use any of the functions it contains by calling them and passing in the appropriate arguments.

• Some of the most commonly used string functions in C include strlen(), strcpy(), strcat(), and strcmp().

• Note that string.h is a C library, and it's not recommended to use it in C++. C++ has its own string class that offers more functionality and safety.

In summary, string.h is a header file in C programming that provides various string-related functions that can be used to manipulate strings in a program. It must be included at the top of the code to use the functions it contains.

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