line break

This commit is contained in:
Jidong Xiao
2023-11-09 16:32:25 -05:00
parent f56aa4eb0b
commit 4a2ce5242f

View File

@@ -114,33 +114,33 @@ if (itr != my_data.end()) {
- Using the default std::string hash function. - Using the default std::string hash function.
With no specified initial table size. (map a std::string type key to a class Foo type value) - With no specified initial table size. (map a std::string type key to a class Foo type value)
```cpp ```cpp
std::unordered_map<std::string,Foo> m; std::unordered_map<std::string,Foo> m;
``` ```
Optionally specifying initial (minimum) table size. - Optionally specifying initial (minimum) table size.
```cpp ```cpp
std::unordered_map<std::string,Foo> m(1000); std::unordered_map<std::string,Foo> m(1000);
``` ```
- Using a home-made std::string hash function. Note: We are required to specify the initial table size. - Using a home-made std::string hash function. Note: We are required to specify the initial table size.
Manually specifying the hash function type. - Manually specifying the hash function type.
```cpp ```cpp
std::unordered_map<std::string,Foo,std::function<unsigned int(std::string)> > m(1000, MyHashFunction); std::unordered_map<std::string,Foo,std::function<unsigned int(std::string)> > m(1000, MyHashFunction);
``` ```
Using the decltype specifier to get the “declared type of an entity”. - Using the decltype specifier to get the “declared type of an entity”.
```cpp ```cpp
std::unordered_map<std::string,Foo,decltype(&MyHashFunction)> m(1000, MyHashFunction); std::unordered_map<std::string,Foo,decltype(&MyHashFunction)> m(1000, MyHashFunction);
``` ```
- Using a home-made std::string hash functor or function object. - Using a home-made std::string hash functor or function object.
With no specified initial table size. - With no specified initial table size.
```cpp ```cpp
std::unordered_map<std::string,Foo,MyHashFunctor> m; std::unordered_map<std::string,Foo,MyHashFunctor> m;
``` ```
Optionally specifying initial (minimum) table size. - Optionally specifying initial (minimum) table size.
```cpp ```cpp
std::unordered_map<std::string,Foo,MyHashFunctor> m(1000); std::unordered_map<std::string,Foo,MyHashFunctor> m(1000);
``` ```