M_CLI2
M_CLI2 module (Fortran)
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Private Member Functions | |
character(len=:) function, allocatable | msg_scalar (generic0, generic1, generic2, generic3, generic4, generic5, generic6, generic7, generic8, generic9, generica, genericb, genericc, genericd, generice, genericf, genericg, generich, generici, genericj, sep) |
character(len=:) function, allocatable | msg_one (generic0, generic1, generic2, generic3, generic4, generic5, generic6, generic7, generic8, generic9, sep) |
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str(3f) - [M_CLI2] converts any standard scalar type to a string (LICENSE:PD)
function str(g0,g1,g2,g3,g4,g5,g6,g7,g8,g9,ga,gb,gc,gd,ge,gf,gg,gh,gi,gj,sep) class(*),intent(in),optional :: g0,g1,g2,g3,g4,g5,g6,g7,g8,g9 class(*),intent(in),optional :: ga,gb,gc,gd,ge,gf,gg,gh,gi,gj character(len=*),intent(in),optional :: sep character,len=(:),allocatable :: str
str(3f) builds a space-separated string from up to twenty scalar values.
g[0-9a-j] optional value to print the value of after the message. May be of type INTEGER, LOGICAL, REAL, DOUBLEPRECISION, COMPLEX, or CHARACTER.
Optionally, all the generic values can be single-dimensioned arrays. Currently, mixing scalar arguments and array arguments is not supported.
sep separator to place between values. Defaults to a space.
str description to print
Sample program:
program demo_msg use M_CLI2, only : str implicit none character(len=:),allocatable :: pr character(len=:),allocatable :: frmt integer :: biggest pr=str('HUGE(3f) integers',huge(0),'and real',huge(0.0),'and double',huge(0.0d0)) write(*,'(a)')pr pr=str('real :',huge(0.0),0.0,12345.6789,tiny(0.0) ) write(*,'(a)')pr pr=str('doubleprecision :',huge(0.0d0),0.0d0,12345.6789d0,tiny(0.0d0) ) write(*,'(a)')pr pr=str('complex :',cmplx(huge(0.0),tiny(0.0)) ) write(*,'(a)')pr ! create a format on the fly biggest=huge(0) frmt=str('(*(i',int(log10(real(biggest))),':,1x))',sep=' ') write(*,*)'format=',frmt ! although it will often work, using str(3f) in an I/O statement is not recommended ! because if an error occurs str(3f) will try to write while part of an I/O statement ! which not all compilers can handle and is currently non-standard write(*,*)str('program will now stop') end program demo_msg
Output
HUGE(3f) integers 2147483647 and real 3.40282347E+38 and double 1.7976931348623157E+308 real : 3.40282347E+38 0.00000000 12345.6787 1.17549435E-38 doubleprecision : 1.7976931348623157E+308 0.0000000000000000 12345.678900000001 2.2250738585072014E-308 complex : (3.40282347E+38,1.17549435E-38) format=(*(i9:,1x)) program will now stop
John S. Urban
Public Domain