Len_trim is an elemental function that operates on CHARACTER variables.
The function will return the length of the character string stored in a character variable without counting any trailing blanks (but including leading blanks in the count).
String must be a character variable.
Note: The function must output to an INTEGER variable.
There are no optional arguments.
Let us say the character variables word and word2 are declared and initialized as follows:
character*10 word, word2 word = 'trees ' word2 = 'big one '
Then if you used them as arguments to the len_trim function like so:
i = len_trim(word) j = len_trim(word2)
Then the variables i and j would contain the values of 5 and 7 respectively. The value of j is 7 because the len_trim function returns the length of the character variable minus the number of trailing blanks. The len_trim function does not subtract out any blanks that are between any character strings.
lecture twenty five
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