Builtin types

Type Meaning
int 32-bit signed integer, default type for integer literals
int8 8-bit signed integer
int16 16-bit signed integer
int32 32-bit signed integer
int64 64-bit signed integer
uint 32-bit unsigned integer
uint8 8-bit unsigned integer
uint16 16-bit unsigned integer
uint32 32-bit unsigned integer
uint64 64-bit unsigned integer
float 32-bit floating-point number, default type for floating-point literals
float32 32-bit floating-point number
float64 64-bit floating-point number
bool boolean
char C/C++ char type

Arithmetic operators

There are the usual arithmetic operators +, -, *, /, %, &&, ||, !, &, |, ^, ~, <<, >>, and the compound assignment counterparts for the binary operators: +=, -=, *=, /=, %=, &&=, ||=, &=, |=, ^=, <<=, >>=.

An important thing to note about +, -, and * is that they don’t silently wrap on overflow. Instead they raise an error (in checked mode), or invoke undefined behavior (in unchecked mode) (not implemented yet). The wrapping behavior can be enabled for individual operations with a special syntax (not implemented yet).

Increment and decrement operators

The increment and decrement operators, written as postfix ++ and --, respectively, increment/decrement their operand by one. They can only be used as standalone statements, not inside arbitrary expressions.

Future additions