string::find
Find the first occurrence of a string within the string.
Synopsis
std::size_t
find(
string_view sv,
std::size_t pos = 0) const noexcept; (1)
std::size_t
find(
char ch,
std::size_t pos = 0) const noexcept; (2)
Description
Returns the lowest index idx
greater than or equal to pos
where each element of sv
is equal to that of {begin() + idx, begin() + idx + sv.size())
if one exists, and npos
otherwise.
Complexity
Linear.
Return Value
The first occurrence of sv
within the string starting at the index pos
, or npos
if none exists.
Return Value
The first occurrence of ch
within the string starting at the index pos
, or npos
if none exists.
Parameters
Name | Description |
---|---|
|
The |
|
The index to start searching at. The default argument for this parameter is |
|
The character to search for. |