Removed checks/workarounds for pre-C++89 compatibility (#449)

After 30+ years, just assume that the following exist:
- extension-less includes
- namespaces
- std::
- static_cast
- bool

8 files changed, 6 insertions, 58 deletions

diff --git a/c++/examples/chunks.cpp b/c++/examples/chunks.cpp
index 365a7da..3717fcb 100644
--- a/c++/examples/chunks.cpp
+++ b/c++/examples/chunks.cpp
@@ -16,11 +16,7 @@
  *   We will read from the file created by extend.cpp
  */
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 using std::cout;
 using std::endl;
 
diff --git a/c++/examples/compound.cpp b/c++/examples/compound.cpp
index 31a572a..8975845 100644
--- a/c++/examples/compound.cpp
+++ b/c++/examples/compound.cpp
@@ -17,11 +17,7 @@
  * and read back fields' subsets.
  */
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 using std::cout;
 using std::endl;
 
diff --git a/c++/examples/create.cpp b/c++/examples/create.cpp
index ef2de36..e55230f 100644
--- a/c++/examples/create.cpp
+++ b/c++/examples/create.cpp
@@ -15,11 +15,7 @@
  *  This example writes a dataset to a new HDF5 file.
  */
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 
 #include <string>
 #include "H5Cpp.h"
diff --git a/c++/examples/extend_ds.cpp b/c++/examples/extend_ds.cpp
index e69c1c0..24f5f3e 100644
--- a/c++/examples/extend_ds.cpp
+++ b/c++/examples/extend_ds.cpp
@@ -18,11 +18,7 @@
  *
  */
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 #include <string>
 
 using std::cout;
diff --git a/c++/examples/h5group.cpp b/c++/examples/h5group.cpp
index 793ff8f..f9ec176 100644
--- a/c++/examples/h5group.cpp
+++ b/c++/examples/h5group.cpp
@@ -20,11 +20,7 @@
  * the C version is used in this example.
  */
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 using std::cout;
 using std::endl;
 
diff --git a/c++/examples/readdata.cpp b/c++/examples/readdata.cpp
index 7441420..e247a8e 100644
--- a/c++/examples/readdata.cpp
+++ b/c++/examples/readdata.cpp
@@ -17,11 +17,7 @@
 //      information about the dataset in the SDS.h5 file is obtained.
 //
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 using std::cout;
 using std::endl;
 
diff --git a/c++/examples/testh5c++.sh.in b/c++/examples/testh5c++.sh.in
index 46fe5eb..44dc9e7 100644
--- a/c++/examples/testh5c++.sh.in
+++ b/c++/examples/testh5c++.sh.in
@@ -67,11 +67,7 @@ temp_FILES="a.out $applib"
 cat > $appmain <<EOF
 #include <string>
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 
 #include "H5Cpp.h"
 
@@ -95,19 +91,11 @@ EOF
 
 # generate prog1
 cat > $prog1 <<EOF
-#ifdef OLD_HEADER_FILENAME
-    #include <iostream.h>
-#else
-    #include <iostream>
-#endif
+#include <iostream>
 #include <string>
 
-#ifndef H5_NO_NAMESPACE
-#ifndef H5_NO_STD
-    using std::cout;
-    using std::endl;
-#endif  // H5_NO_STD
-#endif
+using std::cout;
+using std::endl;
 int sub1(void)
 {
     cout << "in sub1" << endl;
@@ -117,19 +105,11 @@ EOF
 
 # generate prog2
 cat > $prog2 <<EOF
-#ifdef OLD_HEADER_FILENAME
-    #include <iostream.h>
-#else
-    #include <iostream>
-#endif
+#include <iostream>
 #include <string>
 
-#ifndef H5_NO_NAMESPACE
-#ifndef H5_NO_STD
-    using std::cout;
-    using std::endl;
-#endif  // H5_NO_STD
-#endif
+using std::cout;
+using std::endl;
 int sub2(void)
 {
     cout << "in sub2" << endl;
@@ -142,11 +122,7 @@ EOF
 cat > $hdf5main <<EOF
 #include <string>
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 
 #include "H5Cpp.h"
 
diff --git a/c++/examples/writedata.cpp b/c++/examples/writedata.cpp
index ddd3460..f2b715a 100644
--- a/c++/examples/writedata.cpp
+++ b/c++/examples/writedata.cpp
@@ -20,11 +20,7 @@
  *  file is closed. Program reopens the file and reads and displays the result.
  */
 
-#ifdef OLD_HEADER_FILENAME
-#include <iostream.h>
-#else
 #include <iostream>
-#endif
 using std::cout;
 using std::endl;