C Library Functions  - tolower (3)

NAME
tolower(3f) - [M_strings__chars:CASE] changes a string to lowercase over specified range (LICENSE:MIT)

CONTENTS

Synopsis
Description
Options
Returns
Examples
Author
License

SYNOPSIS
pure function tolower(str,begin,end) result (string) 

    character(len=1),intent(in) :: str(:)
    character(len=1)            :: string(size(str)

DESCRIPTION
tolower(str) returns a copy of the ASCII character array with all characters converted to miniscule (ie. "lowercase")

OPTIONS
str character array to convert to miniscule

RETURNS
tolower
  copy of the input array with all characters converted to lowercase.

EXAMPLES
Sample program: 

      program demo_tolower
      use M_strings__chars, only: tolower
      implicit none
      character(len=1),allocatable  :: s(:)
         s=transfer(’ ABCDEFG abcdefg ’,’A’,size=17)
         write(*,*) ’mixed-case input string is ....’,s
         write(*,*) ’lower-case output string is ...’,tolower(s)
      end program demo_tolower

AUTHOR
John S. Urban

LICENSE

    MIT

Nemo Release 3.1 tolower (3) June 29, 2025
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