extern "C" used in skeletons


git-svn-id: https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk@943 59561ff5-6e30-0410-9f3c-9617f08c8826
diff --git a/skeletons/BMPString.h b/skeletons/BMPString.h
index cd51597..a4725fa 100644
--- a/skeletons/BMPString.h
+++ b/skeletons/BMPString.h
@@ -7,6 +7,10 @@
 
 #include <OCTET_STRING.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef OCTET_STRING_t BMPString_t;  /* Implemented via OCTET STRING */
 
 extern asn_TYPE_descriptor_t asn_DEF_BMPString;
@@ -15,4 +19,8 @@
 xer_type_decoder_f BMPString_decode_xer;
 xer_type_encoder_f BMPString_encode_xer;
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif	/* _BMPString_H_ */