fix SmartFactorBase as well

2023-01-27 16:43:27 +00:00 · 2023-01-27 16:43:27 +00:00 · 4929827f70
parent 91b6625405
commit 4929827f70
1 changed files with 1 additions and 1 deletions
--- a/gtsam/slam/SmartFactorBase.h
+++ b/gtsam/slam/SmartFactorBase.h
@ -243,7 +243,7 @@ protected:
   * to the matrices and vectors that will be used to store the results instead
   * of pointers.
   */
-  template<class POINT, class ...OptArgs>
+  template<class POINT, class ...OptArgs, typename = std::enable_if_t<sizeof...(OptArgs)!=0>>
  Vector unwhitenedError(
      const Cameras& cameras, const POINT& point,
      OptArgs&&... optArgs) const {