made all fdstreams RAII for fd

fdstream.cpp

@@ -0,0 +1,28 @@
+//
+// fdstream.cpp
+// libscio
+//
+// Created by Bob Polis at 2020-04-25
+// Copyright (c) 2020 SwiftCoder. All rights reserved.
+//
+
+#include "libscio.hpp"
+#include <unistd.h>
+
+sc::io::fdostream::~fdostream() {
+	if (_outbuf.fd() != -1) {
+		::close(_outbuf.fd());
+	}
+}
+
+sc::io::fdistream::~fdistream() {
+	if (_inbuf.fd() != -1) {
+		::close(_inbuf.fd());
+	}
+}
+
+sc::io::fdstream::~fdstream() {
+	if (_iobuf.fd() != -1) {
+		::close(_iobuf.fd());
+	}
+}

libscio.hpp

@@ -56,6 +56,8 @@ namespace sc {
 				fdostream(int fd) : std::ostream(&_outbuf), _outbuf(fd) {}
 				fdostream() : std::ostream(&_outbuf), _outbuf(-1) {}
 
+				virtual ~fdostream();
+
 				int fd() const { return _outbuf.fd(); }
 				void fd(int fd) { _outbuf.fd(fd); }
 
@@ -68,6 +70,8 @@ namespace sc {
 				fdistream(int fd) : std::istream(&_inbuf), _inbuf(fd) {}
 				fdistream() : std::istream(&_inbuf), _inbuf(-1) {}
 
+				virtual ~fdistream();
+
 				int fd() const { return _inbuf.fd(); }
 				void fd(int fd) { _inbuf.fd(fd); }
 
@@ -80,6 +84,8 @@ namespace sc {
 				fdstream() : std::iostream(&_iobuf) {}
 				fdstream(int fd) : std::iostream(&_iobuf), _iobuf(fd) {}
 
+				virtual ~fdstream();
+
 				int fd() const { return _iobuf.fd(); }
 				void fd(int fd) { _iobuf.fd(fd); }
 

sciotest/main.cpp

@@ -66,7 +66,6 @@ void test3() {
     throw_if_min1(fd = ::open("passwd", mode, perm));
     sc::io::fdostream os {fd};
     os << passwd;
-    throw_if_min1(::close(fd));
 }
 
 void test4() {
@@ -77,7 +76,6 @@ void test4() {
     while (getline(is, line)) {
         cout << line << '\n';
     }
-    throw_if_min1(::close(fd));
 }
 
 void test5() {
@@ -92,7 +90,6 @@ void test5() {
     if (getline(file, line)) {
         cout << line << '\n';
     }
-    throw_if_min1(::close(fd));
 }
 
 int main(int argc, const char * argv[]) {