4.2.2 Abbreviated Size Notation for Numeric Data Types
f95 allows the following nonstandard
type declaration forms in declaration statements, function statements, and
IMPLICIT statements. The form in column one is nonstandard Fortran, though in
common use. The kind numbers in column two can vary by vendor.
Table 4-2 Size Notation for Numeric Data Types | | | |
|---|
INTEGER*1
| INTEGER(KIND=1)
| INTEGER(1)
| One-byte signed integers
|
INTEGER*2
| INTEGER(KIND=2)
| INTEGER(2)
| Two-byte signed integers
|
INTEGER*4
| INTEGER(KIND=4)
| INTEGER(4)
| Four-byte signed integers
|
LOGICAL*1
| LOGICAL(KIND=1)
| LOGICAL(1)
| One-byte logicals
|
LOGICAL*2
| LOGICAL(KIND=2)
| LOGICAL(2)
| Two-byte logicals
|
LOGICAL*4
| LOGICAL(KIND=4)
| LOGICAL(4)
| Four-byte logicals
|
REAL*4
| REAL(KIND=4)
| REAL(4)
| IEEE single-precision four-byte floating-point
|
REAL*8
| REAL(KIND=8)
| REAL(8)
| IEEE double-precision eight-byte floating-point
|
REAL*16
| REAL(KIND=16)
| REAL(16)
| IEEE quad-precision sixteen-byte floating-point
|
COMPLEX*8
| COMPLEX(KIND=4)
| COMPLEX(4)
| Single-precision complex (four bytes each part)
|
COMPLEX*16
| COMPLEX(KIND=8)
| COMPLEX(8)
| Double-precision complex (eight bytes each part)
|
COMPLEX*32
| COMPLEX(KIND=16)
| COMPLEX(16)
| Quad-precision complex (sixteen bytes each part)
|
|