switch to 100 chars columnwidth and apply clang-format to a few .cpp files

src/.clang-format

@@ -16,7 +16,7 @@ BraceWrapping:
 BreakBeforeBraces:                    Custom
 BreakConstructorInitializers:         AfterColon
 BreakInheritanceList:                 AfterColon
-ColumnLimit:                          80
+ColumnLimit:                          100
 IndentCaseLabels:                     true
 IndentWidth:                          2
 NamespaceIndentation:                 Inner

src/main.cpp

@@ -1,4 +1,3 @@
-// clang-format off
 /* ----------------------------------------------------------------------
    LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
    https://lammps.sandia.gov/, Sandia National Laboratories
@@ -13,19 +12,17 @@
 ------------------------------------------------------------------------- */
 
 #include "lammps.h"
+
 #include "input.h"
-
-#include <mpi.h>
-#include <cstdlib>
-
-#if defined(LAMMPS_TRAP_FPE) && defined(_GNU_SOURCE)
-#include <fenv.h>
-#endif
-
 #if defined(LAMMPS_EXCEPTIONS)
 #include "exceptions.h"
 #endif
 
+#include <cstdlib>
+#if defined(LAMMPS_TRAP_FPE) && defined(_GNU_SOURCE)
+#include <fenv.h>
+#endif
+
 using namespace LAMMPS_NS;
 
 /* ----------------------------------------------------------------------

src/tabular_function.cpp

@@ -19,9 +19,8 @@
 using namespace LAMMPS_NS;
 
 TabularFunction::TabularFunction() :
-    size(0), xmin(0.0), xmax(0.0), xmaxsq(0.0), rdx(0.0), vmax(0.0),
-    xs(nullptr), ys(nullptr), ys1(nullptr), ys2(nullptr), ys3(nullptr),
-    ys4(nullptr), ys5(nullptr), ys6(nullptr)
+    size(0), xmin(0.0), xmax(0.0), xmaxsq(0.0), rdx(0.0), vmax(0.0), xs(nullptr), ys(nullptr),
+    ys1(nullptr), ys2(nullptr), ys3(nullptr), ys4(nullptr), ys5(nullptr), ys6(nullptr)
 {
 }