Operator names in messages

Some messages include the name of a compiler operator, as in:

operands must have arithmetic type: op ""+"" .

Usually the operator in the message is a familiar C operator. At other times the compiler uses its internal name for the operator, like U-. This subtopic lists internal operator names that the compiler may use in error messages with definitions of these names.

,OP

The C ``comma operator'' (as distinct from the , that is used to separate function arguments).

ARG

A function argument, or a value passed to a function.

AUTO

An automatic variable that has not been allocated to a register.

CALL

A function call with arguments.

CBRANCH

A conditional branch. (This may be part of an if or loop statement.)

CONV

A conversion. It may have been explicit, in the form of a cast, or implicit, in the semantics of a C statement.

FCON

A floating-point constant.

ICON

An integer or address constant.

NAME

An object or function with extern or static storage class.

PARAM

A function parameter, a value that is received by a function.

REG

An object that has been allocated to a register.

RETURN

The operation that corresponds to a return statement.

STAR

The indirection operator , as in p.

STRING

A string literal.

U&

The ``take address of'' operator (as distinct from the bit-wise AND operation).

U-

The arithmetic negation operator (as distinct from subtraction).

UCALL

A function call with no arguments.

UGE

An unsigned >= comparison.

UGT

An unsigned > comparison.

ULE

An unsigned <= comparison.

ULT

An unsigned < comparison.

UPLUS

The ANSI C ``unary +'' operator.