CheatSheetForSizeOfVariablesInC.md

variableSizeAndRange.html

### Size and Range of Variable Types in C
For a **16-bit** processor, here's the tabulation : 

|Modifier	| Variable Type | sizeof | Range | Precision |
|-----------|-----------|-----------------|:-----------|:-------|
|unsigned | char	| 1	| 0 to 256
|	| char 	| 1 | -127 to 127
|short		|int	| 2 | `–32,767` to `32,767` |
|			|int	| 2 | |
|unsigned 	|int	| 2	| 0 to `65,535`
|long 		|int	| 4 |`–2,147,483,647` to `2,147,483,647`|
|unsigned long 		|int	| 4 |0 to `4,294,967,295`|
|long long	|int	| 8 | `-(2^63 –1)` to `(2^63 –1)`
|unsigned long long | int | 8 | 0 to 2^(8bits*8bytes -1) = `2^64 - 1`
| | float | 4 | 1E-37 to 1E+37 | upto 6-9 significant digits e.g. `3.141592` or `3.14159`?|
| | double | 8 | | upto 15-17 significant digits  
| long  | double | 10 | 1E-37 to 1E+37 | precision to 10 digits, e.g. `3.1415926535` or `3.141592653`?