Primitive Types
Value types store on the stack.
Signed integrals
For Integers (zero, positive, and negative whole numbers).
| .NET Type | C# Alias | Range | Suffix |
|---|---|---|---|
System.Sbyte | sbyte | -128 to 127 | |
System.Int16 | short | -32768 to 32767 | |
System.Int32 | int | -2147483648 to 2147483647 | |
System.Int64 | long | -9223372036854775808 to 9223372036854775807l | or L |
Unsigned integrals
For Cardinals (zero and positive whole numbers).
| .NET Type | C# Alias | Range | Suffix |
|---|---|---|---|
System.Byte | byte | 0 to 255 | |
System.Uint16 | ushort | 0 to 65535 | |
System.Uint32 | uint | 0 to 4294967295u | or U |
System.Uint64 | ulong | 0 to 18446744073709551615ul | or UL |
Native-sized Integers
The aliases nint and nuint are for native-sized integers, meaning that they store a 32-bit integer for 32-bit processors and 64-bit integers for 64-bit processors.
Unicode characters
| .NET Type | C# Alias | Range |
|---|---|---|
System.Char | char | U+OOOO to U+FFFF |
Characters can be created with:
- Character literal:
'j' - Unicode escape:
'\u0006' - Hex escape:
'\x006A' - Cast:
(char)106
Floating point types
For Reals (floating point numbers)
| .NET Type | C# Alias | Range | Suffix | Precision |
|---|---|---|---|---|
System.Single | float | -3.402823E+38 to 3.402823E+38 | f or F | ~6-9 digits |
System.Double | double | -1.79769313486232E+308 to 1.79769313486232E+308 | d or D | ~15-17 digits |
double.NaNrepresents not-a-number (like dividing by zero).double.Epsilonrepresents the smallest positive number that can be stored in a double.
For Accurate Reals (use in science, engineering, or financial applications)
| .NET Type | C# Alias | Range | Suffix | Precision |
|---|---|---|---|---|
| System.Decimal | decimal | -79228162514264337593543950335 to 79228162514264337593543950335 | m or M | 28-29 digits |
Numerics
System.Numerics.BigInteger- An integer with no lower or upper bounds.System.Numerics.Complex- Complex numbers.System.Numerics.Quaternion- Quaternion numbers.
Boolean
| .NET Type | C# Alias |
|---|---|
| System.Boolean | bool |
Operators
+ - / % and:
- Increment:
++ - Decrement:
-- - Assignment:
+=-= - Exponents: There is no exponent operator. Use
System.Math.Pow().
Increment and decrement operators
++ and -- can be used before or after the value.
Methods
All types have these methods:
Equals(object)- Boolean if the current type equals object.GetType()- Return the type.ToString()- Converts a given type to a string.