Prefix inverse and forward functions by their projection names

This is mostly to have better OSSFuzz report. Currently a lot
of bug summaries are like
`proj4/standard_fuzzer: Divide-by-zero in s_inverse`

By prefixing the projection name, we will get better reports, like
`Divide-by-zero in airy_s_inverse`

This also makes it slightly easier to set a breakpoint by
function name.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/projections/vandg2.cpp b/src/projections/vandg2.cpp
index de63b085..05314833 100644
--- a/src/projections/vandg2.cpp
+++ b/src/projections/vandg2.cpp
@@ -18,7 +18,7 @@ PROJ_HEAD(vandg3, "van der Grinten III") "\n\tMisc Sph, no inv";
 #define TOL    1e-10
 
 
-static PJ_XY s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
+static PJ_XY vandg2_s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
     PJ_XY xy = {0.0,0.0};
     struct pj_opaque *Q = static_cast<struct pj_opaque*>(P->opaque);
     double x1, at, bt, ct;
@@ -58,7 +58,7 @@ PJ *PROJECTION(vandg2) {
     P->opaque = Q;
 
     Q->vdg3 = 0;
-    P->fwd = s_forward;
+    P->fwd = vandg2_s_forward;
 
     return P;
 }
@@ -71,7 +71,7 @@ PJ *PROJECTION(vandg3) {
 
     Q->vdg3 = 1;
     P->es = 0.;
-    P->fwd = s_forward;
+    P->fwd = vandg2_s_forward;
 
     return P;
 }