1 files changed, 2 insertions, 0 deletions
diff --git a/property.h b/property.h
index 617c22a..7f53cb1 100644
--- a/property.h
+++ b/property.h
@@ -32,6 +32,7 @@
 
 
 typedef struct {
+    int valid;
     char *name;
     char *expression;
     void *compiled;
@@ -40,6 +41,7 @@ typedef struct {
 
 
 void property_load(const char *section, const char *name, const char *defval, PROPERTY * prop);
+int property_valid(PROPERTY * prop);
 int property_eval(PROPERTY * prop);
 double P2N(PROPERTY * prop);
 char *P2S(PROPERTY * prop);