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authorMicah Cochran <micahcochran@users.noreply.github.com>2016-05-28 11:26:35 -0500
committerMicah Cochran <micahcochran@users.noreply.github.com>2016-05-28 11:26:35 -0500
commit3043b2f7fcf4471983c8d4472b17ccf9df1710c8 (patch)
tree94e63e8367dad31a6f0fe1703050d0ad79340785 /src/PJ_gn_sinu.c
parenta112ea3172e89230fa307567be3d70e286b1eeb5 (diff)
downloadPROJ-3043b2f7fcf4471983c8d4472b17ccf9df1710c8.tar.gz
PROJ-3043b2f7fcf4471983c8d4472b17ccf9df1710c8.zip
Change math constants, similar to PR #372. Use M_ namespace with the de facto standard M_PI and its ilk. Change names that are widely used in the project to be in the M_ namespace, so HALFPI becomes M_HALFPI. HALFPI is #defined as M_PI_2 (the defacto standard name). #defines _USE_MATH_DEFINES for MS Visual Studio (I didn't personally test this part, but Appveyor will not build otherwise).
Diffstat (limited to 'src/PJ_gn_sinu.c')
-rw-r--r--src/PJ_gn_sinu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/PJ_gn_sinu.c b/src/PJ_gn_sinu.c
index 4b33b185..dffc9d4c 100644
--- a/src/PJ_gn_sinu.c
+++ b/src/PJ_gn_sinu.c
@@ -30,10 +30,10 @@ static LP e_inverse (XY xy, PJ *P) { /* Ellipsoidal, inverse */
LP lp = {0.0,0.0};
double s;
- if ((s = fabs(lp.phi = pj_inv_mlfn(P->ctx, xy.y, P->es, P->opaque->en))) < HALFPI) {
+ if ((s = fabs(lp.phi = pj_inv_mlfn(P->ctx, xy.y, P->es, P->opaque->en))) < M_HALFPI) {
s = sin(lp.phi);
lp.lam = xy.x * sqrt(1. - P->es * s * s) / cos(lp.phi);
- } else if ((s - EPS10) < HALFPI) {
+ } else if ((s - EPS10) < M_HALFPI) {
lp.lam = 0.;
} else {
I_ERROR;