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-rw-r--r--src/PJ_healpix.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/PJ_healpix.cpp b/src/PJ_healpix.cpp
index a7d42398..64b57a26 100644
--- a/src/PJ_healpix.cpp
+++ b/src/PJ_healpix.cpp
@@ -53,12 +53,14 @@ PROJ_HEAD(rhealpix, "rHEALPix") "\n\tSph&Ell\n\tnorth_square= south_square=";
/* Fuzz to handle rounding errors: */
# define EPS 1e-15
+namespace { // anonymous namespace
struct pj_opaque {
int north_square;
int south_square;
double qp;
double *apa;
};
+} // anonymous namespace
typedef struct {
int cn; /* An integer 0--3 indicating the position of the polar cap. */