added getFunctionProb in the Java and C API

2 files changed, 14 insertions, 0 deletions

diff --git a/src/runtime/c/pgf/pgf.c b/src/runtime/c/pgf/pgf.c
index 0070e5f48..370b9411b 100644
--- a/src/runtime/c/pgf/pgf.c
+++ b/src/runtime/c/pgf/pgf.c
@@ -165,6 +165,17 @@ pgf_function_type(PgfPGF* pgf, PgfCId funname)
 	return absfun->type;
 }
 
+double
+pgf_function_prob(PgfPGF* pgf, PgfCId funname) 
+{
+	PgfAbsFun* absfun =
+		gu_seq_binsearch(pgf->abstract.funs, pgf_absfun_order, PgfAbsFun, funname);
+	if (absfun == NULL)
+		return INFINITY;
+
+	return absfun->ep.prob;
+}
+
 GuString
 pgf_print_name(PgfConcr* concr, PgfCId id)
 {
diff --git a/src/runtime/c/pgf/pgf.h b/src/runtime/c/pgf/pgf.h
index 4a6199c6f..365d20d73 100644
--- a/src/runtime/c/pgf/pgf.h
+++ b/src/runtime/c/pgf/pgf.h
@@ -66,6 +66,9 @@ pgf_iter_functions_by_cat(PgfPGF* pgf, PgfCId catname,
 PgfType*
 pgf_function_type(PgfPGF* pgf, PgfCId funname);
 
+double
+pgf_function_prob(PgfPGF* pgf, PgfCId funname);
+
 GuString
 pgf_print_name(PgfConcr*, PgfCId id);