Native_Functions: Add f_str_to{lower,upper}()
TTCN-3 interestingly doens't seem to have any case-insensitive string
matching or functions to convert to uppwer/lowercase.
Change-Id: I2e6e0fd2da001a3cc6d9c31c9e766ae54bf17b2f
diff --git a/library/Native_Functions.ttcn b/library/Native_Functions.ttcn
index d59670a..c43004a 100644
--- a/library/Native_Functions.ttcn
+++ b/library/Native_Functions.ttcn
@@ -11,4 +11,10 @@
external function f_inet_ntoa(in octetstring oct) return charstring;
/* like inet_ntoa() but input is host byte order */
external function f_inet_hntoa(in octetstring oct) return charstring;
+
+ /* convert content of charstring to lower-case using tolower(3) */
+ external function f_str_tolower(in charstring input) return charstring;
+
+ /* convert content of charstring to upper-case using toupper(3) */
+ external function f_str_toupper(in charstring input) return charstring;
}