DREAL(Z) returns the real part of complex variable Z.
GNU extension
Elemental function
RESULT = DREAL(A)
| A | The type shall be COMPLEX(8). |
The return value is of type REAL(8).
program test_dreal
complex(8) :: z = (1.3_8,7.2_8)
print *, dreal(z)
end program test_dreal
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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gfortran/DREAL.html