added colm_error for extracting the error string

1 files changed, 2 insertions, 0 deletions

diff --git a/src/colm.h b/src/colm.h
index 0110ef2d..4dd53656 100644
--- a/src/colm.h
+++ b/src/colm.h
@@ -107,6 +107,8 @@ int colm_delete_program( struct colm_program *prg );
 void *colm_get_reduce_ctx( struct colm_program *prg );
 void colm_set_reduce_ctx( struct colm_program *prg, void *ctx );
 
+const char *colm_error( struct colm_program *prg, int *length );
+
 const char **colm_extract_fns( struct colm_program *prg );
 
 #ifdef __cplusplus