8.151 LNBLNK — Index of the last non-blank character in a string

Description:
Returns the length of a character string, ignoring any trailing blanks. This is identical to the standard LEN_TRIM intrinsic, and is only included for backwards compatibility.
Standard:
GNU extension
Class:
Elemental function
Syntax:
RESULT = LNBLNK(STRING)
Arguments:
STRING Shall be a scalar of type CHARACTER, with INTENT(IN)
Return value:
The return value is of INTEGER(kind=4) type.
See also:
INDEX intrinsic, LEN_TRIM

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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-4.9.3/gfortran/LNBLNK.html