floor(x, kind): Integer Floor¶
Integer floor function.
Declaration¶
Sintaxe¶
retval = floor(x)
elemental integer function floor(x, kind)
Argumentos¶
x the input value must be of type real.
kind the optional input parameter must be a scalar integer constant expression.
Valores de retorno¶
The return value is of type integer(kind) if kind is passed as input parameter. If not, default kind integer is returned.
The return value is equal to or nearest greatest integer less than or equal to
x.
Descrição¶
floor(x) returns the greatest integer less than or equal to x. It returns an integer value unless spefically specified using second optional paramter.
Tipos¶
Supported argument types is real.
interface floor
module procedure sfloor_i32, sfloor_i64, dfloor_i32, dfloor_i64
end interface
contains
elemental integer(i32) function sfloor_i32(x, kind)
real(sp), intent(in) :: x
integer(i32), intent(in) :: kind
end function
elemental integer(i64) function sfloor_i64(x, kind)
real(sp), intent(in) :: x
integer(i64), intent(in) :: kind
end function
elemental integer(i32) function dfloor_i32(x, kind)
real(dp), intent(in) :: x
integer(i32), intent(in) :: kind
end function
elemental integer(i64) function dfloor_i64(x, kind)
real(dp), intent(in) :: x
integer(i64), intent(in) :: kind
end function
Exemplos¶
program intrinsics_floor
implicit none
real, parameter :: x = 3.1
print *, floor(x)
print *, floor(-3.1)
end program
Resultado:
3
-4