libcxx initial import
llvm-svn: 103490
diff --git a/libcxx/test/input.output/file.streams/fstreams/filebuf.virtuals/seekoff.pass.cpp b/libcxx/test/input.output/file.streams/fstreams/filebuf.virtuals/seekoff.pass.cpp
new file mode 100644
index 0000000..27584ca
--- /dev/null
+++ b/libcxx/test/input.output/file.streams/fstreams/filebuf.virtuals/seekoff.pass.cpp
@@ -0,0 +1,83 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <fstream>
+
+// pos_type seekoff(off_type off, ios_base::seekdir way,
+// ios_base::openmode which = ios_base::in | ios_base::out);
+// pos_type seekpos(pos_type sp,
+// ios_base::openmode which = ios_base::in | ios_base::out);
+
+// This test is not entirely portable
+
+#include <fstream>
+#include <cassert>
+
+template <class CharT>
+struct test_buf
+ : public std::basic_filebuf<CharT>
+{
+ typedef std::basic_filebuf<CharT> base;
+ typedef typename base::char_type char_type;
+ typedef typename base::int_type int_type;
+ typedef typename base::pos_type pos_type;
+
+ char_type* eback() const {return base::eback();}
+ char_type* gptr() const {return base::gptr();}
+ char_type* egptr() const {return base::egptr();}
+ void gbump(int n) {base::gbump(n);}
+
+ virtual int_type underflow() {return base::underflow();}
+};
+
+int main()
+{
+ {
+ char buf[10];
+ typedef std::filebuf::pos_type pos_type;
+ std::filebuf f;
+ f.pubsetbuf(buf, sizeof(buf));
+ assert(f.open("seekoff.dat", std::ios_base::in | std::ios_base::out
+ | std::ios_base::trunc) != 0);
+ assert(f.is_open());
+ f.sputn("abcdefghijklmnopqrstuvwxyz", 26);
+ assert(buf[0] == 'v');
+ pos_type p = f.pubseekoff(-15, std::ios_base::cur);
+ assert(p == 11);
+ assert(f.sgetc() == 'l');
+ f.pubseekoff(0, std::ios_base::beg);
+ assert(f.sgetc() == 'a');
+ f.pubseekoff(-1, std::ios_base::end);
+ assert(f.sgetc() == 'z');
+ assert(f.pubseekpos(p) == p);
+ assert(f.sgetc() == 'l');
+ }
+ std::remove("seekoff.dat");
+ {
+ wchar_t buf[10];
+ typedef std::filebuf::pos_type pos_type;
+ std::wfilebuf f;
+ f.pubsetbuf(buf, sizeof(buf)/sizeof(buf[0]));
+ assert(f.open("seekoff.dat", std::ios_base::in | std::ios_base::out
+ | std::ios_base::trunc) != 0);
+ assert(f.is_open());
+ f.sputn(L"abcdefghijklmnopqrstuvwxyz", 26);
+ assert(buf[0] == L'v');
+ pos_type p = f.pubseekoff(-15, std::ios_base::cur);
+ assert(p == 11);
+ assert(f.sgetc() == L'l');
+ f.pubseekoff(0, std::ios_base::beg);
+ assert(f.sgetc() == L'a');
+ f.pubseekoff(-1, std::ios_base::end);
+ assert(f.sgetc() == L'z');
+ assert(f.pubseekpos(p) == p);
+ assert(f.sgetc() == L'l');
+ }
+ std::remove("seekoff.dat");
+}