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lnblnk (3)
  • >> lnblnk (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         index, rindex, lnblnk, len - get index  or  length  of  sub-
         string
    
    SYNOPSIS/USAGE
         CHARACTER*(*) string, substr
         n = INDEX (string, substr)
    
         INTEGER*4 FUNCTION rindex
         CHARACTER*(*) string, substr
         n = rindex (string, substr)
    
         INTEGER*4 FUNCTION lnblnk
         CHARACTER*(*) string
         n = lnblnk (string)
    
         CHARACTER*(*) string
         n = LEN (string)
    
    DESCRIPTION
         INDEX(a1,a2) returns the index of the first occurrence of
         string a2 in string a1, or zero if it does not occur
         (intrinsic function).
    
         rindex(a1,a2) returns the index of the last occurrence of
         string a2 in string a1, or zero if it does not occur.
    
         lnblnk( a1 ) returns the index of the last non-blank charac-
         ter in a1.  This function is useful since all f77 character
         objects are of fixed length and blank-padded.
    
         LEN returns the declared size of the character string argu-
         ment (intrinsic function).
    
    NOTES
         When compiling for 64-bit environments (with compiler option
         -xarch=v9 or v9a), routines len, index, rindex, and lnblnk
         could return values greater than the data range of INTEGER*4
         data when applied to very large character strings (greater
         than 2 Gbytes). In this situation, these functions must be
         declared INTEGER*8, as well as the variables receiving their
         results.
    
    EXAMPLE
         Example: LEN(), INDEX(), rindex() , lnblnk():
    
                 CHARACTER s*32 / '123456789 123456789 1234' /
                 INTEGER*4 declen, first, last, lnblnk, rindex
                 declen = LEN( s )
                 first = INDEX( s, '123' )
                 last = rindex( s, '123' )
                 lastnb = lnblnk( s )
                 PRINT*, declen, lastnb, first, last
                 END
    
         demo% f77 -silent tindex.f
         demo% a.out
            32  24  1  21
         demo%
    
         In the above example, declen is 32, not 24. This is the
         declared length of the character variable, not the length of
         the string it contains.
    
    FILES
         libF77.a
    
    
    
    


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