CMPLX(X, Y, KIND)

Purpose

Convert to complex type.

Class

Elemental function

Argument type and attributes

X

An INTENT(IN) INTEGER, REAL, COMPLEX, BINARY, OCTAL, or hexadecimal CONSTANT.

Y (optional)

An INTENT(IN) INTEGER, REAL, COMPLEX, BINARY, OCTAL, or hexadecimal CONSTANT. It must not be present if X is a COMPLEX.

KIND (optional)

An INTENT(IN) scalar INTEGER. The actual argument corresponding to KIND must be a constant expression.

Result type and attributes

• It is of type complex.
• If KIND is present, the kind type parameter is that specified by KIND; otherwise, the kind type parameter is that of the default real type.

Result value

• If Y is absent and X is not complex, it is as if Y were present with the value zero.
• If Y is absent and X is complex, it is as if Y were present with the value AIMAG(X).
• CMPLX(X, Y, KIND) has the complex value whose real part is REAL(X, KIND) and whose imaginary part is REAL(Y, KIND).

Related information

DCMPLX(X, Y) (IBM extension), QCMPLX(X, Y) (IBM extension).