インテル® Fortran コンパイラー 19.0 デベロッパー・ガイドおよびリファレンス
Elemental Intrinsic Function (Generic): Converts a number to quad precision (REAL(16)) type.
result = QEXT (a)
a |
(Input) Must be of type integer, real, or complex. |
The result type is REAL(16) (REAL*16). Functions that cause conversion of one data type to another type have the same effect as the implied conversion in assignment statements.
If a is of type REAL(16), the result is the value of the a with no conversion (QEXT(a) = a).
If a is of type integer or real, the result has as much precision of the significant part of a as a REAL(16) value can contain.
If a is of type complex, the result has as much precision of the significant part of the real part of a as a REAL(16) value can contain.
Specific Name 1 |
Argument Type |
Result Type |
|---|---|---|
INTEGER(1) |
REAL(16) |
|
INTEGER(2) |
REAL(16) |
|
INTEGER(4) |
REAL(16) |
|
INTEGER(8) |
REAL(16) |
|
QEXT |
REAL(4) |
REAL(16) |
QEXTD |
REAL(8) |
REAL(16) |
REAL(16) |
REAL(16) |
|
COMPLEX(4) |
REAL(16) |
|
COMPLEX(8) |
REAL(16) |
|
COMPLEX(16) |
REAL(16) |
|
1These specific functions cannot be passed as actual arguments. |
||
QEXT (4) has the value 4.0 (rounded; there are 32 places to the right of the decimal point).
QEXT ((3.4, 2.0)) has the value 3.4 (rounded; there are 32 places to the right of the decimal point).