topic How to solve this - input/output keyword is invalid in Intel® Fortran Compiler

How to solve this - input/output keyword is invalid

Ajain_A_ — Fri, 11 Jan 2013 10:41:50 GMT

Hello All,

can some somebody help me what is the following bug

error: #6640: This input/output keyword is invalid.

error #6332: A UNIT= specifier is required for this I/O operation.

#ifdef CONM2_OUT
tempstr = './output/CS.conm2_', iloop
call mg1g12conm2(CS_ID, tempstr)
#endif

Post the actual code that

mecej4 — Fri, 11 Jan 2013 10:57:00 GMT

Post the actual code that caused the error message. There are no recognizable I/O statements in the fragment posted, but it is hard to tell without seeing the relevant variable and type declarations. The statement [fortran]tempstr = './output/CS.conm2_', iloop[/fortran] appears suspicious. What is it supposed to do? Perhaps, [fortran]write(tempstr,'(A,I0)')'./output/CS.conm2_', iloop[/fortran] is what was intended?

Well, you've only shown a

lklawrie — Fri, 11 Jan 2013 13:07:35 GMT

Well, you've only shown a brief excerpt of your code. As mecej4 says -- the tempstr assignment appears strange, not valid. (I0 is probably not correct in his reply, but otherwise, it is right on track)

Quote:I0 is probably not

mecej4 — Fri, 11 Jan 2013 13:59:00 GMT

I0 is probably not correct in his reply

Linda, The specification of a zero field width is allowed. It helps produce a minimal length string of digits (no leading blanks or zeros) from an integer. Section 10.7.2.1, Rule (2) of the Fortran 2008 standard says

(6) On output, with I, B, O, Z, F, and G editing, the specified value of the field width w may be zero. In such cases, the processor selects the smallest positive actual field width that does not result in a field filled with asterisks.