Quick A: for( char c : str ).
Recently on StackOverflow:
Traversing a string in C++
I am looking for something similar to traversing a string in Python:
i.e.
for char in str: do somethingHow can I do this in C++?
Quick Q: In Python I write "for char in str" -- what do I write in C++? -- StackOverflow
Comments (3)
1
0
for(unsigned int i = 0; i < str.length(); i++)
{
cout << str[i];
dostuff
}
With constant iterator preventing changing the string
for(auto i = str.cbegin(); i != str.cend(); i++)
{
cout << *i;
dostuff
}
With nonconstant iterator allowing you to change the string.
for(auto i = str.begin(); i != str.end(); i++)
{
cout << *i;
dostuff
}
You could also use foreach and a lambda expression too. Look that up if interested.
0
0
std::string s = "hello world";
for (auto c : s)
{
}
//or... in case u need to modify given chars
for (auto& c : s)
c = c + 1; // or whatever
0
0
I usually use the following:
for(char& c:str)
// use c, without modifying given char
Add a Comment
Comments are closed.