From 3d670b859026218045cf972e4b38af9e3e9a3c6f Mon Sep 17 00:00:00 2001
From: Kristian Evers <kristianevers@gmail.com>
Date: Thu, 28 Mar 2019 20:52:33 +0100
Subject: Add no-op operation. It does nothing.

---
 src/conversions/noop.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 src/conversions/noop.cpp

(limited to 'src/conversions/noop.cpp')

diff --git a/src/conversions/noop.cpp b/src/conversions/noop.cpp
new file mode 100644
index 00000000..a5dd6023
--- /dev/null
+++ b/src/conversions/noop.cpp
@@ -0,0 +1,19 @@
+#define PJ_LIB__
+
+#include "proj_internal.h"
+
+PROJ_HEAD(noop,    "No operation");
+
+static PJ_COORD noop(PJ_COORD coord, PJ *P) {
+    (void) P;
+    return coord;
+}
+
+PJ *CONVERSION(noop, 0) {
+    P->fwd4d = noop;
+    P->inv4d = noop;
+    P->left  = PJ_IO_UNITS_WHATEVER;
+    P->right = PJ_IO_UNITS_WHATEVER;
+    return P;
+}
+
-- 
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