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-rw-r--r--src/PJ_hgridshift.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_hgridshift.cpp b/src/PJ_hgridshift.cpp
index 86c6cdee..9ed9ca02 100644
--- a/src/PJ_hgridshift.cpp
+++ b/src/PJ_hgridshift.cpp
@@ -10,10 +10,12 @@
PROJ_HEAD(hgridshift, "Horizontal grid shift");
+namespace { // anonymous namespace
struct pj_opaque_hgridshift {
double t_final;
double t_epoch;
};
+} // anonymous namespace
static XYZ forward_3d(LPZ lpz, PJ *P) {
PJ_COORD point = {{0,0,0,0}};