add directory Minix

Minix/1.7.5/MANUALS/CAT3/TOLOWER.3

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+
+NAME
+    tolower		- convert to lower case
+
+SYNTAX
+    #include <ctype.h>
+
+    int tolower( c )
+      int c;
+
+    int _tolower( c )
+      int c;
+
+DESCRIPTION
+    These routines convert upper case ASCII characters
+    into lower case characters. Tolower(3) may be called
+    with any ASCII value from 0 to 127, if <c> is not an
+    upper case character then it is returned unchanged.
+
+    _tolower(3) is a macro which can only be used if <c>
+    is an upper case character.
+
+RESULTS
+    Argument converted to lower case.
+
+SEE ALSO
+    ctype(3), toascii(3), toupper(3)
+