fortran90

How do you format a string to have constant width and be left-justified? There is the Aw formatter, where w denotes desired width of character output, but it prepends the spaces if w > len(characters) , instead of appending them. When I try 44 format(A15) print 44, 'Hi Stack Overflow' I get > Hi Stack Overflow< instead of >Hi Stack Overflow < Is there any simple Fortran formatting solution that solves this? As noted in the question, the problem is that when a character expression of length shorter than the output field width the padding spaces appear before the character expression. What we

I am editing a fortran90 code with vim. Note that I'm working with a *.f90 file, not *.f. vim doesn't recognize as legitimate code anything beyond column 72. This is an annoying problem because if a quote is opened at, say, column 50 but not closed until column 80, then vim colors all the following lines as part of the same quote. This would make sense if I was working with an old fortran77 file, but I'm clearly not. Is there any way to convince vim to recognize code beyond column 72? if I create a new .f90 file syntax is highlighted as if it is fortran 77 (fixed line length, comments in first

I am trying to define a array of arrays. I have defined: integer,dimension(2,2):: & x=reshape(source= (/0,1,1,0/), shape=(/2,2/)), & y=reshape(source= (/1,0,0,1/), shape=(/2,2/)), & z=reshape(source= (/1,1,1,1/), shape=(/2,2/)) I want to define an array, say, s(3), of which, (x/y/z) are components, i.e. s(1)=x s(2)=y and s(3)=z how can I achieve that? The simplest approach might be to define s as a rank-3 array, perhaps integer, dimension(3,2,2) :: s and then you can write statements such as s(1,:,:) = x s(2,:,:) = y ... This is the 'natural' way to implement an array of arrays in Fortran. An

According to an answer to a similar question, I have declared the characters as indicated here gfortran does not allow character arrays with varying component lengths . However I would like to use a trim function because I need to add spaces to manually pad the names and these variables are then used in another part of the code. Can I trim at the same time as creating the array? Error: Different CHARACTER lengths (3/4) in array constructor at (1) If I add random characters to make them the same length it works but I can't do that for obvious reasons. I have compiled both with gfortran and

I have seen /* block comment */ for block commenting in C++. I know I can do line commenting by using ! or c , but is there any option for block commenting in Fortran? No, the strange concept of block comments is alien to Fortran. Your editor or development environment might provide a way to comment a block of lines in one go. You can do a little hack though: go to 100 ! CHUNK OF CODE YOU WANT TO COMMENT OUT 100 continue Yeah, I know it's horrible but it works. :) muraly If your FORTRAN compiler supports preprocessor macros then a popular method is to use ( What exactly does an #if 0 .....

In my program I need to store result files for different cases. I have decided to create separate directories to store these result files. To explain the exact situation here is a pseudo code. do i=1,N ! N cases of my analysis U=SPEED(i) call write_files(U) !Create a new directory for this case and Open files (1 = a.csv, 2 = b.csv) to write data call postprocess() !Write data in files (a.csv, b.csv) call close_files() !Close all files (1,2) end do subroutine write_files(i) !Make directory i !Open file a.csv and b.csv with unit 1 & 2 !Write header information in file a.csv and b.csv close

This question already has an answer here: Fortran print allocatable array in gdb 3 answers I have the following data structure in a Fortran90 program: TYPE derivedType CHARACTER(100) :: name = ' ' INTEGER :: type = 0 REAL(KIND(1.0D0)) :: property = 0.0 END TYPE derivedType TYPE (derivedType), ALLOCATABLE, DIMENSION(:) :: arrayOfDerivedTypes When I try to debug and print values in GDB like: (gdb) p arrayOfDerivedTypes(1)%name I get non-sensical values (often strings of zeros, forward slashes and letters), or completely wrong values (like arrayOfDerivedTypes(1)%name = 9, when I know that it is =