REAL — Convert to real type#

REAL(A, KIND)#

REAL(A [, KIND]) converts its argument A to a real type. The REALPART function is provided for compatibility with g77, and its use is strongly discouraged.

Parameters:
  • A – Shall be INTEGER, REAL, or COMPLEX.

  • KIND – (Optional) An INTEGER initialization expression indicating the kind parameter of the result.

Returns:

These functions return a REAL variable or array under the following rules:

Standard:

Fortran 77 and later, with KIND argument Fortran 90 and later, has GNU extensions

Class:

Elemental function

Syntax:
RESULT = REAL(A [, KIND])
RESULT = REALPART(Z)
Example:
program test_real
  complex :: x = (1.0, 2.0)
  print *, real(x), real(x,8), realpart(x)
end program test_real
Specific names:

Name

Argument

Return type

Standard

FLOAT(A)

INTEGER(4)

REAL(4)

Fortran 77 and later

DFLOAT(A)

INTEGER(4)

REAL(8)

GNU extension

FLOATI(A)

INTEGER(2)

REAL(4)

GNU extension (-fdec)

FLOATJ(A)

INTEGER(4)

REAL(4)

GNU extension (-fdec)

FLOATK(A)

INTEGER(8)

REAL(4)

GNU extension (-fdec)

SNGL(A)

REAL(8)

REAL(4)

Fortran 77 and later

See also:

DBLE — Double conversion function