1 files changed, 6 insertions, 0 deletions
diff --git a/Source/Utils/WarpXUtil.H b/Source/Utils/WarpXUtil.H
index fd6e72dc6..85e6de911 100644
--- a/Source/Utils/WarpXUtil.H
+++ b/Source/Utils/WarpXUtil.H
@@ -2,6 +2,8 @@
 #include <AMReX_Vector.H>
 #include <AMReX_MultiFab.H>
 
+#include <string>
+
 void ReadBoostedFrameParameters(amrex::Real& gamma_boost, amrex::Real& beta_boost,
                                 amrex::Vector<int>& boost_direction);
 
@@ -9,3 +11,7 @@ void ConvertLabParamsToBoost();
 
 void NullifyMF(amrex::MultiFab& mf, int lev, amrex::Real zmin,
                amrex::Real zmax);
+
+namespace WarpXUtilIO{
+    bool WriteBinaryDataOnFile(std::string filename, const amrex::Vector<char>& data);
+}