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Diffstat (limited to 'Dragon/src/PRECISION_AND_KINDS.f90')
| -rw-r--r-- | Dragon/src/PRECISION_AND_KINDS.f90 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Dragon/src/PRECISION_AND_KINDS.f90 b/Dragon/src/PRECISION_AND_KINDS.f90 new file mode 100644 index 0000000..b807c12 --- /dev/null +++ b/Dragon/src/PRECISION_AND_KINDS.f90 @@ -0,0 +1,20 @@ +! +!--------------------------------------------------------------------- +! +!Purpose: +! To store common constants relarive to accuracy or to mathematics. +! +!Copyright: +! Copyright (C) 2001 Ecole Polytechnique de Montreal. +! +!Author(s): +! X. Warin +! +!--------------------------------------------------------------------- +! +MODULE PRECISION_AND_KINDS + INTEGER, PARAMETER :: PDB = SELECTED_REAL_KIND(8) + REAL(PDB), PARAMETER :: PI=3.14159265358979, TWOPI=2.*PI, & + HALFPI=PI/2., SMALL=1.E-20,INFINITY=1.E20 + REAL(PDB) :: HUGE_PDB,LOG10_HUGE_PDB,TINY_PDB,LOG10_TINY_PDB +END MODULE PRECISION_AND_KINDS |