Input Errorreal constant with a kind-parameter

[asymptotic]

real(kind = 8):: x
read(*, *) x

when I input -- 1.0_8 List-Directed I/O syntax errorIntel Fortran 12.0 Compiler.
I don't know whyreal constant with kind-parameter as a input, the compiler message
a error? The Fortran 2003 Standard mention this situation?

Thanks a lot.

[Steven_L_Intel1]

I understand why you might try that, but it's not allowed in Fortran. The kind is taken from the corresponding variable in the I/O list.

[asymptotic]

Thanks a lot.

These days I look through --- The Fortran 2003 Handbook chapter 10, and I find the following sentences:

the input values are not actually Fortran constants. They do not have to follow all the rules for Fortran literal constants and they are not allowed to have kind parameter.