std::string_view remove_prefix() method
- od C++17
// Const version only
constexpr void remove_prefix( size_type n );
Moves the start of the view forward by n characters.
Undefined Behavior
The behavior is undefined
ifn > size().Parameters
n- number of characters to remove from the end of the view
Return value
(none)
Complexity
Constant - O(1).
Example
Main.cpp
#include <iostream>
#include <algorithm>
#include <string_view>
int main()
{
std::string str = " trim me";
std::string_view v = str;
v.remove_prefix(std::min(v.find_first_not_of(" "), v.size()));
std::cout << "String: '" << str << "'\n"
<< "View : '" << v << "'\n";
}
Possible output
String: ' trim me'
View : 'trim me'
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