# What are the minimum and maximum values of a char datatype?

Page Contents

## What are the minimum and maximum values of a char datatype?

A char is effectively an 8 bit byte. And signed for most implementations. So it can hold -128 to 127 on a ‘normal’ system.

## What is the max value of a char?

Limits on Integer Constants

Constant Meaning Value
CHAR_BIT Number of bits in the smallest variable that is not a bit field. 8
SCHAR_MIN Minimum value for a variable of type signed char . -128
SCHAR_MAX Maximum value for a variable of type signed char . 127
UCHAR_MAX Maximum value for a variable of type unsigned char . 255 (0xff)

## What is the value of a char variable?

It is short for character, which is a data type that holds one character (letter, number, etc.) of data. For example, the value of a char variable could be any one-character value, such as ‘A’, ‘4’, or ‘#’.

## What is the max value of char in C?

Being a signed data type, it can store positive values as well as negative values. Size of 8 bits is occupied where 1 bit is used to store the sign of the value. A maximum value that can be stored in a signed char data type is typically 127, around 27 – 1(but is compiler dependent).

## What is the minimum value of char type?

char: The char data type is a single 16-bit Unicode character. It has a minimum value of ” (or 0) and a maximum value of ‘ffff’ (or 65,535 inclusive).

## What’s the difference between char and signed char?

A signed char is same as an ordinary char and has a range from -128 to +127; whereas, an unsigned char has a range from 0 to 255. char: is a data type in C programming language which can store value from -128 to +127. It generally used to store character values.

## What is double max value?

The value of this constant is positive 1.7976931348623157E+308. The result of an operation that exceeds Double. MaxValue is Double. PositiveInfinity.

## What is the range of the char type?

Type Name Bytes Range of Values
char 1 -128 to 127 by default 0 to 255 when compiled by using /J
signed char 1 -128 to 127
unsigned char 1 0 to 255
short 2 -32,768 to 32,767

## What’s the minimum value of an unsigned char?

A minimum value that can be stored in an unsigned char data type is 0. In case of overflow or underflow of data type, the value is wrapped around. For example, if 0 is stored in an unsigned char data type and 1 is subtracted from it, the value in that variable will become equal to 255.

## What are the minimum and maximum values of a variable?

For minimum and maximum values that a specific type of variable can represent, look at the contents in “limits.h”, which contains the constants which @chux refers to. As to what the values “1” or “4” in your output mean, it is the number of octets a “char” and “int” variable occupies, respectively (i.e. the “sizeof” that variable).

## What is the maximum char value in Java?

char: The char data type is a single 16-bit Unicode character. It has a minimum value of ‘\’ (or 0) and a maximum value of ‘\ffff’ (or 65,535 inclusive).

## What is the minimum size of a char?

It minimum value is 0. The word size used in sizeof means how many bytes the type occupies in memory. A char is 4 bytes (36 bit) while an integer is 1 byte (8 bit). To get the minimum value and the maximum value you can use the library limits.h as explained here.