Tidy: modernize-use-nullptr

[alexxy/gromacs.git] / src / gromacs / gmxana / gmx_potential.cpp

diff --git a/src/gromacs/gmxana/gmx_potential.cpp b/src/gromacs/gmxana/gmx_potential.cpp
index a8258f03608bc924d0cc86599afab1fc7a7a91f4..034ac993b83ac9c366cbfb1e10ec2a0fbdea207a 100644 (file)
--- a/src/gromacs/gmxana/gmx_potential.cpp
+++ b/src/gromacs/gmxana/gmx_potential.cpp
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 1991-2000, University of Groningen, The Netherlands.
  * Copyright (c) 2001-2004, The GROMACS development team.
- * Copyright (c) 2013,2014,2015,2016, by the GROMACS development team, led by
+ * Copyright (c) 2013,2014,2015,2016,2017, by the GROMACS development team, led by
  * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
  * and including many others, as listed in the AUTHORS file in the
  * top-level source directory and at http://www.gromacs.org.
@@ -122,7 +122,7 @@ void calc_potential(const char *fn, int **index, int gnx[],
     real         t;
     double       z;
     rvec         xcm;
-    gmx_rmpbc_t  gpbc = NULL;
+    gmx_rmpbc_t  gpbc = nullptr;
 
     switch (axis)
     {
@@ -457,9 +457,9 @@ int gmx_potential(int argc, char *argv[])
     int         ePBC;
     int       **index;                         /* indices for all groups     */
     t_filenm    fnm[] = {                      /* files for g_order       */
-        { efTRX, "-f", NULL,  ffREAD },        /* trajectory file             */
-        { efNDX, NULL, NULL,  ffREAD },        /* index file          */
-        { efTPR, NULL, NULL,  ffREAD },        /* topology file               */
+        { efTRX, "-f", nullptr,  ffREAD },     /* trajectory file             */
+        { efNDX, nullptr, nullptr,  ffREAD },  /* index file          */
+        { efTPR, nullptr, nullptr,  ffREAD },  /* topology file               */
         { efXVG, "-o", "potential", ffWRITE }, /* xvgr output file    */
         { efXVG, "-oc", "charge", ffWRITE },   /* xvgr output file    */
         { efXVG, "-of", "field", ffWRITE },    /* xvgr output file    */
@@ -495,9 +495,9 @@ int gmx_potential(int argc, char *argv[])
                    opt2fn("-oc", NFILE, fnm), opt2fn("-of", NFILE, fnm),
                    nslices, ngrps, (const char**)grpname, slWidth, oenv);
 
-    do_view(oenv, opt2fn("-o", NFILE, fnm), NULL);  /* view xvgr file */
-    do_view(oenv, opt2fn("-oc", NFILE, fnm), NULL); /* view xvgr file */
-    do_view(oenv, opt2fn("-of", NFILE, fnm), NULL); /* view xvgr file */
+    do_view(oenv, opt2fn("-o", NFILE, fnm), nullptr);  /* view xvgr file */
+    do_view(oenv, opt2fn("-oc", NFILE, fnm), nullptr); /* view xvgr file */
+    do_view(oenv, opt2fn("-of", NFILE, fnm), nullptr); /* view xvgr file */
 
     return 0;
 }