Which of the following ia a valid keyword in C language that identifies valid character value?
Answers
Answer:
Character set
A character set is a set of alphabets, letters and some special characters that are valid in C language.
Alphabets
Uppercase: A B C ................................... X Y Z
Lowercase: a b c ...................................... x y z
C accepts both lowercase and uppercase alphabets as variables and functions.
Digits
0 1 2 3 4 5 6 7 8 9
Special Characters
Special Characters in C Programming
, < > . _
( ) ; $ :
% [ ] # ?
' & { } "
^ ! * / |
- \ ~ +
White space Characters
Blank space, newline, horizontal tab, carriage, return and form feed.
C Keywords
Keywords are predefined, reserved words used in programming that have special meanings to the compiler. Keywords are part of the syntax and they cannot be used as an identifier. For example:
int money;
Here, int is a keyword that indicates money is a variable of type int (integer).
As C is a case sensitive language, all keywords must be written in lowercase. Here is a list of all keywords allowed in ANSI C.
C Keywords
auto double int struct
break else long switch
case enum register typedef
char extern return union
continue for signed void
do if static while
default goto sizeof volatile
const float short unsigned
All these keywords, their syntax, and application will be discussed in their respective topics. However, if you want a brief overview of these keywords without going further, visit List of all keywords in C programming.