std::string change_extension(const path& oldpath, const std::string new_extension): This API returns a new string that reflects the changed name.

string change_extension(const path& oldpath, const std::string new_extension)：此 API 将返回反映更改后的名称的新字符串。

youdao

So why is boost::swap interesting when STL already provides std::swap? The behavior of std::swap is equivalent to

那么在 STL 已提供 std::swap 时为什么还有必要使用 boost::swap？

youdao

Note that the error messages must go to STD: : cerr and not STD: : cout.

注意，错误消息必须发送到std： cerr而不是std： cout。

youdao

lstd So this is pretty-- similarly might we say this dash L STD for standard, for Standard I/O.

同样也可以是,即标准输入输出库。

哈佛公开课 - 计算机科学课程节选

Another STD tech tool out there is an app called STD Triage.

CNN: High-tech tools for STDs

Comfortably fitting in an adult's hand, the computer fully meets MIL-STD 810G specifications for ruggedness.

ENGADGET: General Dynamics' GD300 is the Pip-Boy that runs Android

They're also tech-savvy, and that's driving the development of new high-tech STD prevention tools geared toward them.

CNN: High-tech tools for STDs