C Library Functions - inum0 (3)
NAME
inum0(3f) - [M_calculator] return integer value from calculator expression (LICENSE:PD)
CONTENTS
Synopsis
Synopsis
Description
Dependencies
Examples
See Also
Author
License
SYNOPSIS
integer function inum0(inline,ierr)
character(len=*),intent(in) :: inline integer,optional,intent(out) :: ierr
SYNOPSIS
INUM0() evaluates a CHARACTER argument as a FORTRAN-like calculator expression and returns an integer.
o INUM0() uses the calculator routine CALCULATOR(3f) o Remember that the calculator treats all values as DOUBLEPRECISION. Values returned are assumed to be very close to being whole integer values. A small value (0.01) is added to the result before it is returned to reduce roundoff error problems. This could introduce errors if INUM0 is misused and is not being used to calculate essentially integer results.
DESCRIPTION
inline INLINE is a CHARACTER variable up to 255 characters long that is similar to a FORTRAN 77 numeric expression. Keep it less than 80 characters when possible. ierr zero (0) if no error occurs
DEPENDENCIES
All programs that call the calculator routine can supply their own substitute_subroutine(3f) and substitute_C(3f) procedures. See the ../html/Example.html">example program for samples.
EXAMPLES
Sample program:
program demo_inum0 use M_calculator, only : inum0 implicit none integer :: i,j,k i=inum0(’20/3.4’) j=inum0(’CI = 13 * 3.1’) k=inum0(’CI’) write(*,*)’Answers are ’,I,J,K end program demo_inum0
SEE ALSO
The syntax of an expression is as described in the main document of the Calculator Library. See CALCULATOR(), RNUM0(), DNUM0(), SNUM0(), STRGARR(), STRGAR2(), EXPRESSION()
AUTHOR
John S. Urban
LICENSE
Public Domain
| Nemo Release 3.1 | inum0 (3) | February 23, 2025 |
