front().c_str()
时间: 2024-06-03 22:07:26 浏览: 18
This code snippet is likely part of a C++ program, and it accesses the first character of a C-style string (char array) stored in an object called "front". The ".c_str()" function returns a pointer to the first character of the string, which can then be accessed using the subscript operator "[0]" or as a regular char variable.
For example, if "front" is a string object containing the text "hello", then "front().c_str()" would return a pointer to the character 'h'.
Note that since the returned pointer is a C-style string, it is important to ensure that the underlying string buffer remains valid for the lifetime of the pointer. In other words, if the "front" object is destroyed or modified, the pointer returned by ".c_str()" may no longer be valid or may point to unexpected data.