Fortran

ISHC

Elemental Intrinsic Function (Generic): Rotates an integer left or right by specified number of bits. Bits shifted out one end are shifted in the other end. No bits are lost.

ISHL

Elemental Intrinsic Function (Generic): Logically shifts an integer left or right by the specified bits. Zeros are shifted in from the opposite end.

ISNAN

Elemental Intrinsic Function (Generic): Tests whether IEEE* real (S_floating, T_floating, and X_floating) numbers are Not-a-Number (NaN) values.

JDATE

Portability Function: Returns an 8-character string with the Julian date in the form "yyddd". Three spaces terminate this string.

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