std::char_traits<char>:: assign, std::char_traits<wchar_t>:: assign, std::char_traits<char8_t>:: assign, std::char_traits<char16_t>:: assign, std::char_traits<char32_t>:: assign
From cppreference.com
<
cpp
|
string
|
char traits
|
static
void
assign
(
char_type
&
c1,
const
char_type
&
c2
)
;
|
(1) |
(noexcept since C++11)
(constexpr since C++17) |
|
static
char_type
*
assign
(
char_type
*
ptr,
std::
size_t
count, char_type c2
)
;
|
(2) | (constexpr since C++20) |
1)
Assigns
c2
to
c1
, behaves identically to
c1
=
c2
.
2)
Assigns
c2
to each character in
count
characters in the character sequence pointed to by
ptr
.
See
CharTraits
for the general requirements on character traits for
X::assign
.
Parameters
| c1 | - | character to assign to |
| c2 | - | character value to assign |
| ptr | - | pointer to a character sequence to assign to |
| count | - | the length of the character sequence |
Return value
1)
(none)
2)
ptr
Complexity
1)
Constant.
2)
Linear in
count
.