ICHAR — Character-to-integer conversion function#
-
ICHAR(C)#
ICHAR(C)
returns the code for the character in the first character position ofC
in the system’s native character set. The correspondence between characters and their codes is not necessarily the same across different GNU Fortran implementations.- Parameters
C – Shall be a scalar
CHARACTER
, withINTENT(IN)
KIND – (Optional) An
INTEGER
initialization expression indicating the kind parameter of the result.
- Returns
The return value is of type
INTEGER
and of kindKIND
. IfKIND
is absent, the return value is of default integer kind.
- Standard:
Fortran 77 and later, with
KIND
argument Fortran 2003 and later- Class:
Elemental function
- Syntax:
RESULT = ICHAR(C [, KIND])
- Example:
program test_ichar integer i i = ichar(' ') end program test_ichar
- Specific names:
Name
Argument
Return type
Standard
ICHAR(C)
CHARACTER C
INTEGER(4)
Fortran 77 and later
- Note:
No intrinsic exists to convert between a numeric value and a formatted character string representation – for instance, given the
CHARACTER
value'154'
, obtaining anINTEGER
orREAL
value with the value 154, or vice versa. Instead, this functionality is provided by internal-file I/O, as in the following example:program read_val integer value character(len=10) string, string2 string = '154' ! Convert a string to a numeric value read (string,'(I10)') value print *, value ! Convert a value to a formatted string write (string2,'(I10)') value print *, string2 end program read_val
- See also:
ACHAR — Character in ASCII collating sequence, CHAR, IACHAR — Code in ASCII collating sequence