Skip to content

addman2/flogger

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

15 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

flogger

Yet another Fortran logger, this one is light weight and goes with formating

Few examples here:

In order to make flogger work, one has to load module, initilize constructor and set logging level. Verbosity level in this example is set to 11 (messages with VERBOSITY_LOW and VERBOSITY_HIGH will be printed)

  use logging
  type(Logger) :: l
  l = Logger()
  call l%setlvl(11)

logg method has three arguments. First one specifies verbosity level. In princpile that can be done via enum. Second the message and the third one is the rank so only rank.eq.0 will show the message. For serial codes this is unnecessary and it should be always zero.

  call l%logg("VERBOSITY_LOW", "", 0)
  call l%logg("VERBOSITY_LOW", "Hello this is a cool software suite!", 0)
  call l%logg("VERBOSITY_LOW", "", 0)
  call l%logg("VERBOSITY_LOW", "====================================", 0)
  call l%logg("VERBOSITY_LOW", "", 0)
  call l%logg("VERBOSITY_LOW", "It is for logging and formating outputs,&
                              & here are some examples:", 0)

This package makes formating a little bit easier. Appending operator now works for any kind of basic variable.

  call l%logg("VERBOSITY_LOW", "", 0)
  call l%logg("VERBOSITY_LOW", "This flag is " // .TRUE., 0)
  call l%logg("VERBOSITY_LOW", "This flag is " // .FALSE., 0)
  call l%logg("VERBOSITY_LOW", "", 0)
  call l%logg("VERBOSITY_LOW", "Hello I am " // animal, 0) ! animal is Girafe
  call l%logg("VERBOSITY_LOW", "I have " // 5 // " friends", 0)
  call l%logg("VERBOSITY_LOW", "", 0)

This code will produce following output:

 This flag is True
 This flag is False
 
 Hello I am Girafe
 I have 5 friends

One can format output by specifying **'fmt'. fmt should have the same format as one would use in write (5,'fmt').

  call l%logg("VERBOSITY_LOW", "The total run time is "// 5.1234567&
                          & // " seconds", 0)
  call l%logg("VERBOSITY_LOW", "Your bank balance is "&
                          & //  5.123456789 ** 'f8.2'&
                          & // " sestertii", 0)

One can specify special formats like here for eV and Ang. By adding extra @ letter one can trim the output

  call l%logg("VERBOSITY_LOW", "Hydrogen ionization energy is "&
                          & // 0.5 ** '!H2eV!f8.3', 0)
  call l%logg("VERBOSITY_LOW", "My favorite bond length is "&
                          & // 2.91 ** '!B2Ang!f8.3', 0)
  call l%logg("VERBOSITY_LOW", "My second favorite bond length is "&
                          & // 0.7 ** '[email protected]', 0)

Producing following output

 Hydrogen ionization energy is   13.606 eV
 My favorite bond length is    1.540 Ang
 My second favorite bond length is 0.370 Ang

About

No description, website, or topics provided.

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published