8escs01 problem solving through programming unit-2: c programming basics

Character	ASCII	Escape Sequence
Result
Null	000	\0	Null
Alarm (Bell)	007	\a	Beep Sound
Back Space	008	\b	Moves Previous Position
Horizontal Tab	009	\t	Moves next horizontal tab
New line	010	\n	Moves New line
Vertical tab	011	\v	Moves next vertical tab

(B) TOKENS

• C tokens are the basic buildings blocks in C language which are constructed together to write a C program. Each and every smallest individual units in a C program are known as C tokens.
• The tokens are usually referred as individual text and punctuation in a passage of text.
• C tokens has following types:

(I) KEYWORDS

• These are reserved words that have standard and predefined meaning in C language.
• It cannot be changed.
• They can’t be used as a variable name.
• For utilizing the keyword in a program, no header files are included.
• The c support 32 keywords:

auto, break, case, char, const, continue, default, double, else, enum, extern, float, for, goto, if, return, register, short, signed, sizeof, static, struct, switch, typedef, union, unsigned, void, volatile, while