fortran - Error: Non-numeric character in statement label at (1)? -

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i wrote following 2 lines in fortran

c23456789     real h3 = 0                                                            h3=h*h*h

and received following errors gdb :

ljmd.f:186.5:      real h3 = 0                                                               1 error: non-numeric character in statement label @ (1) ljmd.f:187.5:      h3=h*h*h                                                                  1 error: non-numeric character in statement label @ (1) ljmd.f:187.6:      h3=h*h*h                                                                   1

what proper way create , use new variables in middle of else's fortran program? c23456789 label of current column used in program.

this in random fortran tutorial. expect have fixed source form. statement must start @ column 7 or farther.

also, 

real h3 = 0

isn't legal in free form source fortran , different thing in fixed form (see @francesalus' comment). , in case there no reason initialize variable @ all. can do

  real h3   h3 = h**3

if happen need initialization somewhere else, either must use

  real :: = 0

(requires fotran 90), or

  real   data a/0/

(in fortran77). beware, both version make variable save may know static other languages.

the last point, cannot introduce variables anywhere "in middle of program", declaration of variables have place @ beginning of each compilation unit (program, function, subroutine,...).


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