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.tutorial

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git-svn-id: svn://ultimatepp.org/upp/trunk@11482 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2017-11-19 16:44:22 +00:00
parent 8fa242b083
commit 08d5d416e0
5 changed files with 210 additions and 0 deletions
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73
tutorial/CoreTutorial/Stream.cpp Normal file
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@ -0,0 +1,73 @@
#include "Tutorial.h"
void Stream()
{
/// .Streams basics
FileIn in(GetDataFile("test.txt"));
if(!in) {
LOG("Failed to open the file");
return;
}
String h;
int c;
while((c = in.Get()) >= 0)
h.Cat(c);
DUMP(h);
in.Seek(0);
while(!in.IsEof())
DUMP(in.GetLine());
in.Seek(0);
DUMP(in.Get(10));
in.Seek(0);
DUMP(in.Get(999999).GetCount());
in.Seek(0);
h = in.GetAll(100);
DUMP(h.GetCount());
h = in.GetAll(999999);
DUMP(h.IsVoid());
in.LoadThrowing();
try {
in.GetAll(999999);
}
catch(LoadingError) {
LOG("Loading error");
}
String fn = GetHomeDirFile("test");
FileOut out(fn);
if(!out) {
LOG("Failed to open the file");
return;
}
out << "Some number " << 321 << " and Point " << Point(1, 2);
out.Close();
if(out.IsError()) { // check whether file was properly written
LOG("Error");
return;
}
DUMP(LoadFile(fn));
FileAppend out2(fn);
out2 << "\nSomething more";
out2.Close();
DUMP(LoadFile(fn));
StringStream ss;
ss.Put32le(0x12345678);
ss.Put32be(0x12345678);
StringStream ss2(ss.GetResult());
DUMP(ss.Get32le());
DUMP(ss.Get32be());
DUMPHEX(ss.GetResult());
///
}