bc8d3f97eb
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
44 lines
1003 B
C++
44 lines
1003 B
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <strstream>
|
|
|
|
// class istrstream
|
|
|
|
// explicit istrstream(const char* s, streamsize n);
|
|
|
|
#include <strstream>
|
|
#include <cassert>
|
|
|
|
int main()
|
|
{
|
|
{
|
|
const char buf[] = "123 4.5 dog";
|
|
std::istrstream in(buf, 7);
|
|
int i;
|
|
in >> i;
|
|
assert(i == 123);
|
|
double d;
|
|
in >> d;
|
|
assert(d == 4.5);
|
|
std::string s;
|
|
in >> s;
|
|
assert(s == "");
|
|
assert(in.eof());
|
|
assert(in.fail());
|
|
in.clear();
|
|
in.putback('5');
|
|
assert(!in.fail());
|
|
in.putback('5');
|
|
assert(in.fail());
|
|
assert(buf[5] == '.');
|
|
assert(buf[6] == '5');
|
|
}
|
|
}
|