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git-svn-id: svn://ultimatepp.org/upp/trunk@11527 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2017-12-04 12:21:50 +00:00
parent 089a7c117c
commit 3ecd8e7da4
5 changed files with 83 additions and 26 deletions
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16
tutorial/CoreTutorial/SpecialStream.cpp
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@ -3,20 +3,28 @@
void SpecialStream()
{
/// .Special streams
/// `SizeStream` counts the number of bytes written to the stream:
SizeStream szs;
szs << "1234567";
DUMP(szs.GetSize());
///
/// `CompareStream` can be used to compare the content of some stream with data written to
/// `CompareStream`:
StringStream in("123456");
CompareStream cs(in);
cs.Put("12345");
DUMP(cs.IsEqual());
///
cs.Put("7");
DUMP(cs.IsEqual());
///
/// `OutStream` buffers output data to bigger blocks, then outputs them via `Out` virtual
/// method:
struct MyOutStream : OutStream {
virtual void Out(const void *data, dword size) {
@ -28,7 +36,7 @@ void SpecialStream()
os << "This is a test " << 12345;
os.Close();
///
/// `TeeStream` send output data to two separate streams:
StringStream ss1;
StringStream ss2;
@ -38,7 +46,7 @@ void SpecialStream()
DUMP(ss1.GetResult());
DUMP(ss2.GetResult());
///
/// `MemReadStream` can be used to convert read-only memory block to stream data:
static const char s[] = "Some line\nAnother line";
MemReadStream ms(s, sizeof(os));