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-rw-r--r--src/pj_obs_api.c2
-rw-r--r--src/proj.h6
2 files changed, 4 insertions, 4 deletions
diff --git a/src/pj_obs_api.c b/src/pj_obs_api.c
index 90269764..6f9644b1 100644
--- a/src/pj_obs_api.c
+++ b/src/pj_obs_api.c
@@ -70,7 +70,7 @@ PJ_OBS proj_obs (double x, double y, double z, double t, double o, double p, dou
/* Geodesic distance between two points with angular 2D coordinates */
-double proj_lp_dist (PJ *P, LP a, LP b) {
+double proj_lp_dist (const PJ *P, LP a, LP b) {
double s12, azi1, azi2;
/* Note: the geodesic code takes arguments in degrees */
geod_inverse (P->geod, PJ_TODEG(a.phi), PJ_TODEG(a.lam), PJ_TODEG(b.phi), PJ_TODEG(b.lam), &s12, &azi1, &azi2);
diff --git a/src/proj.h b/src/proj.h
index c2eb3523..943c500f 100644
--- a/src/proj.h
+++ b/src/proj.h
@@ -398,7 +398,7 @@ PJ_OBS proj_obs (double x, double y, double z, double t, double o, double p,
double proj_roundtrip (PJ *P, PJ_DIRECTION direction, int n, PJ_OBS obs);
/* Geodesic distance between two points with angular 2D coordinates */
-double proj_lp_dist (PJ *P, LP a, LP b);
+double proj_lp_dist (const PJ *P, LP a, LP b);
/* Euclidean distance between two points with linear 2D coordinates */
double proj_xy_dist (XY a, XY b);
@@ -415,8 +415,8 @@ void proj_errno_restore (PJ *P, int err);
PJ_DERIVS proj_derivatives(const PJ *P, const LP lp);
-PJ_FACTORS proj_factors(const PJ *P, const LP lp);
-
+PJ_FACTORS proj_factors(const PJ *P, const LP lp);
+
/* Info functions - get information about various PROJ.4 entities */
PJ_INFO proj_info(void);
PJ_PROJ_INFO proj_pj_info(const PJ *P);