string::find
Find the first occurrence of characters 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
Search from pos
onward for the first substring that is equal to the first argument.
-
(1) searches for the presense of the substring equal to
sv
. -
(2) searches for the presense of the substring consisting of the character
ch
.
Complexity
Linear in size()
.
Exception Safety
No-throw guarantee.
Return Value
The index of the first character of the found substring, or npos
if none was found.
Parameters
Name | Description |
---|---|
|
The |
|
The index to start searching at. |
|
The character to search for. |