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, 4 insertions, 4 deletions

diff --git a/src/projections/lagrng.cpp b/src/projections/lagrng.cpp
index 65686584..ac7a37a4 100644
--- a/src/projections/lagrng.cpp
+++ b/src/projections/lagrng.cpp
@@ -21,7 +21,7 @@ struct pj_opaque {
 } // anonymous namespace
 
 
-static PJ_XY s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
+static PJ_XY lagrng_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 v, c;
@@ -45,7 +45,7 @@ static PJ_XY s_forward (PJ_LP lp, PJ *P) {           /* Spheroidal, forward */
 }
 
 
-static PJ_LP s_inverse (PJ_XY xy, PJ *P) {           /* Spheroidal, inverse */
+static PJ_LP lagrng_s_inverse (PJ_XY xy, PJ *P) {           /* Spheroidal, inverse */
     PJ_LP lp = {0.0,0.0};
     struct pj_opaque *Q = static_cast<struct pj_opaque*>(P->opaque);
     double c, x2, y2p, y2m;
@@ -93,8 +93,8 @@ PJ *PROJECTION(lagrng) {
     Q->a2 = Q->a1 * Q->a1;
 
     P->es = 0.;
-    P->inv = s_inverse;
-    P->fwd = s_forward;
+    P->inv = lagrng_s_inverse;
+    P->fwd = lagrng_s_forward;
 
     return P;
 }