Repair includes that should be C++ instead of C flavor

src/V3File.cpp

@@ -25,7 +25,7 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
-#include <errno.h>
+#include <cerrno>
 #include <fcntl.h>
 #include <iomanip>
 #include <memory>

src/Verilator.cpp

@@ -21,7 +21,7 @@
 
 #include "V3Global.h"
 #include "V3Ast.h"
-#include <time.h>
+#include <ctime>
 #include <sys/stat.h>
 
 #include "V3Active.h"

test_regress/t/t_dist_cinclude.pl

@@ -0,0 +1,54 @@
+#!/usr/bin/perl
+if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2003 by Wilson Snyder. This program is free software; you can
+# redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+
+use IO::File;
+
+my $root = "..";
+my $Debug;
+
+if (!-r "$root/.git") {
+    $Self->skip("Not in a git repository");
+} else {
+    ### Must trim output before and after our file list
+    my $files = `cd $root && git ls-files --exclude-standard`;
+    print "ST $files\n" if $Debug;
+    $files =~ s/\s+/ /g;
+    my $cmd = "cd $root && fgrep -n include $files | sort";
+    my $grep = `$cmd`;
+    foreach my $line (split /\n/, $grep) {
+	my $hit;
+	$hit = 1 if $line =~ /\bassert\.h/;
+	$hit = 1 if $line =~ /\bctype\.h/;
+	$hit = 1 if $line =~ /\berrno\.h/;
+	$hit = 1 if $line =~ /\bfloat\.h/;
+	$hit = 1 if $line =~ /\blimits\.h/;
+	$hit = 1 if $line =~ /\blocale\.h/;
+	$hit = 1 if $line =~ /\bmath\.h/;
+	$hit = 1 if $line =~ /\bsetjmp\.h/;
+	$hit = 1 if $line =~ /\bsignal\.h/;
+	$hit = 1 if $line =~ /\bstdarg\.h/;
+	$hit = 1 if $line =~ /\bstdbool\.h/;
+	$hit = 1 if $line =~ /\bstddef\.h/;
+	#Not yet: $hit = 1 if $line =~ /\bstdint\.h/;
+	$hit = 1 if $line =~ /\bstdio\.h/;
+	$hit = 1 if $line =~ /\bstdlib\.h/;
+	$hit = 1 if $line =~ /\bstring\.h/;
+	$hit = 1 if $line =~ /\btime\.h/;
+	next if !$hit;
+	print "$line\n";
+	$names{$1} = 1 if $line =~ /^([^:]+)/;
+    }
+
+    if (keys %names) {
+	$Self->error("Files like stdint.h instead of cstdint: ",join(' ',sort keys %names));
+    }
+}
+
+ok(1);
+1;

test_regress/t/t_dpi_context_c.cpp

@@ -13,7 +13,7 @@
 //
 //*************************************************************************
 
-#include <stdio.h>
+#include <cstdio>
 #include <svdpi.h>
 
 //======================================================================

test_regress/t/t_dpi_display_c.cpp

@@ -13,7 +13,7 @@
 //
 //*************************************************************************
 
-#include <stdio.h>
+#include <cstdio>
 #include <svdpi.h>
 
 //======================================================================

test_regress/t/t_dpi_export_c.cpp

@@ -13,7 +13,7 @@
 //
 //*************************************************************************
 
-#include <stdio.h>
+#include <cstdio>
 #include <svdpi.h>
 #include <cstring>
 

test_regress/t/t_dpi_import_c.cpp

@@ -13,9 +13,9 @@
 //
 //*************************************************************************
 
-#include <stdio.h>
-#include <svdpi.h>
+#include <cstdio>
 #include <cstring>
+#include <svdpi.h>
 
 //======================================================================
 

test_regress/t/t_dpi_sys_c.cpp

@@ -13,7 +13,7 @@
 //
 //*************************************************************************
 
-#include <stdio.h>
+#include <cstdio>
 #include <svdpi.h>
 
 //======================================================================