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 (Specific): Performs a right shift with fill. This function cannot be passed as an actual argument.
result = SHIFTA (i,shift)
i |
(Input) Must be of type integer. This is the value to be shifted. |
shift |
(Input) Must be of type integer. It must be nonnegative and <= BIT_SIZE(i). This value is the number of positions to shift. |
The result type and kind are the same as i.
The result has the value obtained by shifting the bits of i to the right shift bits and replicating the leftmost bit of i in the left shift bits.
If shift is zero the result is i. Bits shifted off the right end are lost.
The model for the interpretation of an integer value as a sequence of bits is in Model for Bit Data.
SHIFTA (IBSET (0, BIT_SIZE (0) - 1), 2) is equal to SHIFTL (7, BIT_SIZE (0) - 3).