ICHAR
— Character-to-integer conversion function ¶ICHAR(C)
returns the code for the character in the first character
position of C
in the system’s native character set.
The correspondence between characters and their codes is not necessarily
the same across different GNU Fortran implementations.
Fortran 77 and later, with KIND argument Fortran 2003 and later
Elemental function
RESULT = ICHAR(C [, KIND])
C | Shall be a scalar CHARACTER , with INTENT(IN) |
KIND | (Optional) A scalar INTEGER constant
expression indicating the kind parameter of the result. |
The return value is of type INTEGER
and of kind KIND. If
KIND is absent, the return value is of default integer kind.
program test_ichar integer i i = ichar(' ') end program test_ichar
Name | Argument | Return type | Standard |
---|---|---|---|
ICHAR(C) | CHARACTER C | INTEGER(4) | Fortran 77 and later |
No intrinsic exists to convert between a numeric value and a formatted
character string representation – for instance, given the
CHARACTER
value '154'
, obtaining an INTEGER
or
REAL
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
ACHAR
— Character in ASCII collating sequence,
CHAR
— Character conversion function,
IACHAR
— Code in ASCII collating sequence