From c6c9c82f960a68aec32bef2e5773d2342c6bdce2 Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Wed, 3 Feb 2021 21:13:54 -0500
Subject: [PATCH] ID strings are immutable, so make them const char * arguments

---
 src/USER-VTK/dump_vtk.cpp | 9 +++++----
 src/USER-VTK/dump_vtk.h   | 8 ++++----
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/src/USER-VTK/dump_vtk.cpp b/src/USER-VTK/dump_vtk.cpp
index 92981c98ff..8b970820d2 100644
--- a/src/USER-VTK/dump_vtk.cpp
+++ b/src/USER-VTK/dump_vtk.cpp
@@ -24,6 +24,7 @@
 
 #include "dump_vtk.h"
 
+#include "arg_info.h"
 #include "atom.h"
 #include "compute.h"
 #include "domain.h"
@@ -1908,7 +1909,7 @@ void DumpVTK::identify_vectors()
    if already in list, do not add, just return index, else add to list
 ------------------------------------------------------------------------- */
 
-int DumpVTK::add_compute(char *id)
+int DumpVTK::add_compute(const char *id)
 {
   int icompute;
   for (icompute = 0; icompute < ncompute; icompute++)
@@ -1933,7 +1934,7 @@ int DumpVTK::add_compute(char *id)
    if already in list, do not add, just return index, else add to list
 ------------------------------------------------------------------------- */
 
-int DumpVTK::add_fix(char *id)
+int DumpVTK::add_fix(const char *id)
 {
   int ifix;
   for (ifix = 0; ifix < nfix; ifix++)
@@ -1958,7 +1959,7 @@ int DumpVTK::add_fix(char *id)
    if already in list, do not add, just return index, else add to list
 ------------------------------------------------------------------------- */
 
-int DumpVTK::add_variable(char *id)
+int DumpVTK::add_variable(const char *id)
 {
   int ivariable;
   for (ivariable = 0; ivariable < nvariable; ivariable++)
@@ -1987,7 +1988,7 @@ int DumpVTK::add_variable(char *id)
    if already in list, do not add, just return index, else add to list
 ------------------------------------------------------------------------- */
 
-int DumpVTK::add_custom(char *id, int flag)
+int DumpVTK::add_custom(const char *id, int flag)
 {
   int icustom;
   for (icustom = 0; icustom < ncustom; icustom++)
diff --git a/src/USER-VTK/dump_vtk.h b/src/USER-VTK/dump_vtk.h
index 28fcca78d6..9d46571d23 100644
--- a/src/USER-VTK/dump_vtk.h
+++ b/src/USER-VTK/dump_vtk.h
@@ -81,10 +81,10 @@ class DumpVTK : public DumpCustom {
 
   int parse_fields(int, char **);
   void identify_vectors();
-  int add_compute(char *);
-  int add_fix(char *);
-  int add_variable(char *);
-  int add_custom(char *, int);
+  int add_compute(const char *);
+  int add_fix(const char *);
+  int add_variable(const char *);
+  int add_custom(const char *, int);
   virtual int modify_param(int, char **);
 
   typedef void (DumpVTK::*FnPtrHeader)(bigint);