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Returns the maximum length the basic_string can reach.
This is the maximum potential length the string can reach due to known system or library implementation limitations, but the object is not guaranteed to be able to reach that length: it can still fail to allocate storage at any point before that length is reached.
Member type size_type is an unsigned integral type.
A possible output for this program could be:
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
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<condition_variable>C++11
-
<future>C++11
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<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>
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<random>C++11
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<ratio>C++11
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<regex>C++11
- <stdexcept>
- <string>
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<system_error>C++11
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<tuple>C++11
-
<type_traits>C++11
-
<typeindex>C++11
- <typeinfo>
- <utility>
- <valarray>
basic_string
- basic_string::~basic_string
- basic_string::basic_string
member functions
- basic_string::append
- basic_string::assign
- basic_string::at
-
basic_string::backC++11
- basic_string::begin
- basic_string::c_str
- basic_string::capacity
-
basic_string::cbeginC++11
-
basic_string::cendC++11
- basic_string::clear
- basic_string::compare
- basic_string::copy
-
basic_string::crbeginC++11
-
basic_string::crendC++11
- basic_string::data
- basic_string::empty
- basic_string::end
- basic_string::erase
- basic_string::find
- basic_string::find_first_not_of
- basic_string::find_first_of
- basic_string::find_last_not_of
- basic_string::find_last_of
-
basic_string::frontC++11
- basic_string::get_allocator
- basic_string::insert
- basic_string::length
- basic_string::max_size
- basic_string::operator[]
- basic_string::operator+=
- basic_string::operator=
-
basic_string::pop_backC++11
- basic_string::push_back
- basic_string::rbegin
- basic_string::rend
- basic_string::replace
- basic_string::reserve
- basic_string::resize
- basic_string::rfind
-
basic_string::shrink_to_fitC++11
- basic_string::size
- basic_string::substr
- basic_string::swap
member constants
non-member overloads
- Reference
- <string>
- basic_string
- max_size
public member function
<string>
std::basic_string::max_size
size_type max_size() const;
size_type max_size() const noexcept;
Return maximum size
This is the maximum potential length the string can reach due to known system or library implementation limitations, but the object is not guaranteed to be able to reach that length: it can still fail to allocate storage at any point before that length is reached.
Parameters
noneReturn Value
The maximum length the basic_string can reach.Member type size_type is an unsigned integral type.
Example
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A possible output for this program could be:
size: 11 length: 11 capacity: 15 max_size: 4294967291 |
Complexity
Unspecified, but generally constant.
Constant.
Iterator validity
No changes.Data races
The object is accessed.Exception safety
No-throw guarantee: this member function never throws exceptions.See also
- basic_string::capacity
- Return size of allocated storage (public member function)
- basic_string::size
- Return size (public member function)
- basic_string::resize
- Resize string (public member function)
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Spotted an error? contact us