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re PR libstdc++/9988 (filebuf::overflow writes EOF to file)

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2003-03-09  Paolo Carlini  <pcarlini@unitus.it>

	PR libstdc++/9988
	* include/bits/fstream.tcc (overflow): don't write EOF to file.
	* testsuite/27_io/filebuf_virtuals.cc (test15): Add.

From-SVN: r64045
This commit is contained in:
Paolo Carlini 2003-03-09 22:35:09 +01:00 committed by Paolo Carlini
parent e1a0421226
commit 3006d72869
3 changed files with 48 additions and 1 deletions
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6
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,9 @@
2003-03-09 Paolo Carlini <pcarlini@unitus.it>
PR libstdc++/9988
* include/bits/fstream.tcc (overflow): don't write EOF to file.
* testsuite/27_io/filebuf_virtuals.cc (test15): Add.
2003-03-08 Jerry Quinn <jlquinn@optonline.net>
PR libstdc++/9561

4
libstdc++-v3/include/bits/fstream.tcc
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@ -252,7 +252,9 @@ namespace std
if (__testout)
{
if (__testput)
if (traits_type::eq_int_type(__c, traits_type::eof()))
__ret = traits_type::not_eof(__c);
else if (__testput)
{
*this->_M_out_cur = traits_type::to_char_type(__c);
_M_out_cur_move(1);

39
libstdc++-v3/testsuite/27_io/filebuf_virtuals.cc
View File

@ -75,6 +75,7 @@ const char name_04[] = "filebuf_virtuals-4.txt"; // empty file, need to create
const char name_05[] = "filebuf_virtuals-5.txt"; // empty file, need to create
const char name_06[] = "filebuf_virtuals-6.txt"; // empty file, need to create
const char name_07[] = "filebuf_virtuals-7.txt"; // empty file, need to create
const char name_08[] = "filebuf_virtuals-8.txt"; // empty file, need to create
class derived_filebuf: public std::filebuf
{
@ -759,6 +760,43 @@ void test14()
fbuf1.close();
}
class OverBuf : public std::filebuf
{
public:
int_type pub_overflow(int_type c = traits_type::eof())
{ return std::filebuf::overflow(c); }
};
// libstdc++/9988
void test15()
{
using namespace std;
bool test = true;
OverBuf fb;
fb.open(name_08, ios_base::out | ios_base::trunc);
fb.sputc('a');
fb.pub_overflow('b');
fb.pub_overflow();
fb.sputc('c');
fb.close();
filebuf fbin;
fbin.open(name_08, ios_base::in);
filebuf::int_type c;
c = fbin.sbumpc();
VERIFY( c == 'a' );
c = fbin.sbumpc();
VERIFY( c == 'b' );
c = fbin.sbumpc();
VERIFY( c == 'c' );
c = fbin.sbumpc();
VERIFY( c == filebuf::traits_type::eof() );
fbin.close();
}
main()
{
test01();
@ -777,5 +815,6 @@ main()
test12();
test13();
test14();
test15();
return 0;
}