https://github.com/coin-or/CoinUtils/commit/1700ed92c2bc1562aabe65dee3b4885bd5c87fb9
From: Stefan Vigerske <svigerske@gams.com>
Date: Wed, 18 Aug 2021 15:09:53 +0200
Subject: [PATCH] remove use of register storage class specifier

- removed in C++17
---
 src/CoinOslC.h                | 16 ++++++++--------
 src/CoinOslFactorization2.cpp |  4 ++--
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/CoinOslC.h b/src/CoinOslC.h
index 2f6d10aae..d8103f86b 100644
--- a/src/CoinOslC.h
+++ b/src/CoinOslC.h
@@ -33,30 +33,30 @@
 extern "C" {
 #endif
 
-int c_ekkbtrn(register const EKKfactinfo *fact,
+int c_ekkbtrn(const EKKfactinfo *fact,
   double *dwork1,
   int *mpt, int first_nonzero);
-int c_ekkbtrn_ipivrw(register const EKKfactinfo *fact,
+int c_ekkbtrn_ipivrw(const EKKfactinfo *fact,
   double *dwork1,
   int *mpt, int ipivrw, int *spare);
 
-int c_ekketsj(register /*const*/ EKKfactinfo *fact,
+int c_ekketsj(/*const*/ EKKfactinfo *fact,
   double *dwork1,
   int *mpt2, double dalpha, int orig_nincol,
   int npivot, int *nuspikp,
   const int ipivrw, int *spare);
-int c_ekkftrn(register const EKKfactinfo *fact,
+int c_ekkftrn(const EKKfactinfo *fact,
   double *dwork1,
   double *dpermu, int *mpt, int numberNonZero);
 
-int c_ekkftrn_ft(register EKKfactinfo *fact,
+int c_ekkftrn_ft(EKKfactinfo *fact,
   double *dwork1, int *mpt, int *nincolp);
-void c_ekkftrn2(register EKKfactinfo *fact, double *dwork1,
+void c_ekkftrn2(EKKfactinfo *fact, double *dwork1,
   double *dpermu1, int *mpt1, int *nincolp,
   double *dwork1_ft, int *mpt_ft, int *nincolp_ft);
 
-int c_ekklfct(register EKKfactinfo *fact);
-int c_ekkslcf(register const EKKfactinfo *fact);
+int c_ekklfct(EKKfactinfo *fact);
+int c_ekkslcf(const EKKfactinfo *fact);
 inline void c_ekkscpy(int n, const int *marr1, int *marr2)
 {
   CoinMemcpyN(marr1, n, marr2);
diff --git a/src/CoinOslFactorization2.cpp b/src/CoinOslFactorization2.cpp
index ab3225923..177ac437b 100644
--- a/src/CoinOslFactorization2.cpp
+++ b/src/CoinOslFactorization2.cpp
@@ -19,9 +19,9 @@
 extern int ets_count;
 extern int ets_check;
 #endif
-#define COIN_REGISTER register
+#define COIN_REGISTER
 #define COIN_REGISTER2
-#define COIN_REGISTER3 register
+#define COIN_REGISTER3
 #ifdef COIN_USE_RESTRICT
 #define COIN_RESTRICT2 __restrict
 #else