The C language does not have character strings. Instead, it has arrays of single characters, so this is how you must represent a character string in Fortran.
There is a kind value defined, C_CHAR, corresponding to the C
char type. However, only character variables with a length of one (1) are interoperable.
When errors occur during execution (run time) of a program, the Intel® Visual Fortran run-time system issues diagnostic messages.
The location where Fortran run-time messages are displayed depends on the Understanding Project Types:
A COMPLEX(4) constant is a pair of integer or single-precision real constants that represent a complex number.
A COMPLEX(4) constant occupies eight bytes of memory and is interpreted as a complex number.
If the real and imaginary part of a complex literal constant are both real, the kind parameter value is that of the part with the greater decimal precision.