32 Regular expressions library [re]

32.9 Class template match_results [re.results]

Table 141 lists the postconditions of match_results copy/move constructors and copy/move assignment operators.

For move operations, the results of the expressions depending on the parameter m denote the values they had before the respective function calls.

explicit match_results(const Allocator& a);

Effects: The stored Allocator value is constructed from a.

Postconditions: ready() returns false.

size() returns 0.

match_results(const match_results& m);
match_results(const match_results& m, const Allocator& a);

Effects: For the first form, the stored Allocator value is obtained as specified in [container.reqmts].

For the second form, the stored Allocator value is constructed from a.

Postconditions: As specified in Table 141 .

match_results(match_results&& m) noexcept;
match_results(match_results&& m, const Allocator& a);

Effects: For the first form, the stored Allocator value is move constructed from m.get_allocator().

For the second form, the stored Allocator value is constructed from a.

Postconditions: As specified in Table 141 .

Throws: The second form throws nothing if a == m.get_allocator() is true.

match_results& operator=(const match_results& m);

Postconditions: As specified in Table 141 .

match_results& operator=(match_results&& m);

Postconditions: As specified in Table 141 .

Table 141: match_results copy/move operation postconditions [tab:re.results.const]

🔗	Element	Value
🔗	ready()	m.ready()
🔗	size()	m.size()
🔗	str(n)	m.str(n) for all non-negative integers n < m.size()
🔗	prefix()	m.prefix()
🔗	suffix()	m.suffix()
🔗	(*this)[n]	m[n] for all non-negative integers n < m.size()
🔗	length(n)	m.length(n) for all non-negative integers n < m.size()
🔗	position(n)	m.position(n) for all non-negative integers n < m.size()