Riferimenti per il modulomissing_values

Definitions of constants and functions for working with missing values. Continua...

Tipi di dato
interface	c_e
	Function to check whether a value is missing or not. Continua...

Attributi pubblici
real, parameter	rmiss = HUGE(1.0)
	default single precision real Continua...
double precision, parameter	dmiss = HUGE(1.0D0)
	default double precision real Continua...
real(kind=fp_s), parameter	rsmiss = HUGE(1.0_fp_s)
	single precision IEEE real (kind=fp_s) Continua...
real(kind=fp_d), parameter	rdmiss = HUGE(1.0_fp_d)
	double precision IEEE real (kind=fp_d) Continua...
integer, parameter	imiss = HUGE(0)
	default integer Continua...
integer(kind=int_b), parameter	ibmiss = HUGE(0_int_b)
	1-byte integer (kind=int_b) Continua...
integer(kind=int_s), parameter	ismiss = HUGE(0_int_s)
	2-byte integer (kind=int_s) Continua...
integer(kind=int_l), parameter	ilmiss = HUGE(0_int_l)
	4-byte integer (kind=int_l) Continua...
integer(kind=int_ll), parameter	illmiss = HUGE(0_int_ll)
	8-byte integer if supported (kind=int_ll) Continua...
character(len=1), parameter	cmiss = char(0)
	character (any length) Continua...

Membri privati
ELEMENTAL LOGICAL function, private	c_e_b (var)
	Check whether the byte argument is valid. Continua...
ELEMENTAL LOGICAL function, private	c_e_s (var)
	Check whether the short integer argument is valid. Continua...
ELEMENTAL LOGICAL function, private	c_e_l (var)
	Check whether the long integer argument is valid. Continua...
ELEMENTAL LOGICAL function, private	c_e_ll (var)
	Check whether the long long integer argument is valid. Continua...
ELEMENTAL LOGICAL function, private	c_e_r (var)
	Check whether the real argument is valid. Continua...
ELEMENTAL LOGICAL function, private	c_e_d (var)
	Check whether the double precision argument is valid. Continua...
ELEMENTAL LOGICAL function, private	c_e_c (var)
	Check whether the character argument is valid. Continua...

Descrizione dettagliata

Definitions of constants and functions for working with missing values.

This modules provides tools for handling missing values in various data types. Users should use the various *miss constants for setting a variable to a missing value, and use the interfaced function c_e or an equality test with the corresponding *miss constant for checking the validity of a value.

When using the *miss constants, it is important to choose the constant of the right type in order to avoid implicit conversions that would impair the results.

Example of typical use:

USE missing_values
...
INTEGER :: i
INTEGER(kind=int_b) :: ib
REAL :: r

i = imiss
ib = ibmiss
r = rmiss
IF (c_e(i) .OR. c_e(ib)) THEN
  print*,"this is not executed"
ENDIF
IF (.NOT.c_e(r)) THEN
  print*,"this is executed"
ENDIF
...

Definizione alla linea 50 del file missing_values.f90.