File operation question

[rajabadsha]

Hi,
I am new in Fortran and trying to convert the following Fortran program in C:


Program contbc

parameter (ndwgt=1000,ndpow=1000)

dimension cplot(ndwgt,ndpow)

character*80 project_name
character*80 control_file

open(10,file="setup.dat",form="formatted",
x status="old")

200 format(a)
read(10,200) project_name
write(6,200) project_name
read(10,200) control_file
write(6,200) control_file

read(10,*) nwgt_start,nwgt_end,nwgt_step
write(6,*) nwgt_start,nwgt_end,nwgt_step
read(10,*) pow_start,pow_end,pow_step
write(6,*) pow_start,pow_end,pow_step

close(10)

I have the following questions:
1) What does character*80 means? Why is there a * after the character?
2) What does dimension cplot means? Is cplot a keyword?
3) How does read and write works for:
a) read(10,*) nwgt_start,nwgt_end,nwgt_step
b) write(6,*) nwgt_start,nwgt_end,nwgt_step
How is nwgt_start, nwgt_end, and nwgt_step used without being initiated?

I need help...

 

[xwb]

1) character*80 = char[80]
2) cplot is not a keyword, dimension is and array declaration
i.e. float cplot[ndwgt,ndpow];
3) read = fscanf, write = fprintf
Use g format for *

nwgt etc are initialized - they are read in from a file.

 

[ArkM]

It is open to question that this attempt to learn a programming language basic constructs (syntax and semantics) by the forum Q&A is the best way to go...