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The first form (1) returns a basic_string object with a copy of the current contents of the stream.
The second form (2) sets str as the contents of the stream, discarding any previous contents. The object preserves its open mode: if this includes ios_base::ate, the writing position is moved to the end of the new sequence.
Internally, the function calls the str member of its internal string buffer object.
Member types char_type, traits_type and allocator_type are the class template parameters of basic_istringstream.
Concurrent access to the same object may cause data races.
Reference
C library:
- <cassert> (assert.h)
- <cctype> (ctype.h)
- <cerrno> (errno.h)
-
<cfenv> (fenv.h)C++11
- <cfloat> (float.h)
-
<cinttypes> (inttypes.h)C++11
- <ciso646> (iso646.h)
- <climits> (limits.h)
- <clocale> (locale.h)
- <cmath> (math.h)
- <csetjmp> (setjmp.h)
- <csignal> (signal.h)
- <cstdarg> (stdarg.h)
-
<cstdbool> (stdbool.h)C++11
- <cstddef> (stddef.h)
-
<cstdint> (stdint.h)C++11
- <cstdio> (stdio.h)
- <cstdlib> (stdlib.h)
- <cstring> (string.h)
-
<ctgmath> (tgmath.h)C++11
- <ctime> (time.h)
-
<cuchar> (uchar.h)C++11
- <cwchar> (wchar.h)
- <cwctype> (wctype.h)
Containers:
-
<array>C++11
- <deque>
-
<forward_list>C++11
- <list>
- <map>
- <queue>
- <set>
- <stack>
-
<unordered_map>C++11
-
<unordered_set>C++11
- <vector>
-
Input/Output:
Multi-threading:
-
<atomic>C++11
-
<condition_variable>C++11
-
<future>C++11
-
<mutex>C++11
-
<thread>C++11
-
Other:
- <algorithm>
- <bitset>
-
<chrono>C++11
-
<codecvt>C++11
- <complex>
- <exception>
- <functional>
-
<initializer_list>C++11
- <iterator>
- <limits>
- <locale>
- <memory>
- <new>
- <numeric>
-
<random>C++11
-
<ratio>C++11
-
<regex>C++11
- <stdexcept>
- <string>
-
<system_error>C++11
-
<tuple>C++11
-
<type_traits>C++11
-
<typeindex>C++11
- <typeinfo>
- <utility>
- <valarray>
basic_istringstream
- basic_istringstream::basic_istringstream
public member functions
non-member overloads
public member function
<sstream>
std::basic_istringstream::str
basic_string<char_type,traits_type,allocator_type> str() const;void str (const basic_string<char_type,traits_type,allocator_type>& s);
Get/set content
The second form (2) sets str as the contents of the stream, discarding any previous contents. The object preserves its open mode: if this includes ios_base::ate, the writing position is moved to the end of the new sequence.
Internally, the function calls the str member of its internal string buffer object.
Parameters
- str
- A basic_string object with the same template parameters (charT, traits and Alloc), whose content is copied.
Member types char_type, traits_type and allocator_type are the class template parameters of basic_istringstream.
Return Value
For (1), a basic_string object with a copy of the current contents in the stream buffer.Member types char_type, traits_type and allocator_type are the class template parameters of basic_istringstream.
Example
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32 240 2 1450 Finished writing the numbers in: 32 240 2 1450 |
Data races
Accesses (1) or modifies (2) the basic_istringstream object.Concurrent access to the same object may cause data races.
Exception safety
Basic guarantee: if an exception is thrown, the object is in a valid state.See also
- basic_istringstream::basic_istringstream
- Construct object (public member function)
- basic_stringbuf::str
- Get/set content (public member function)
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Spotted an error? contact us