What is the English abbreviation of _ttoi in C++?

_ttoi is the function name. The function name is not equal to the English abbreviation. The name is used to distinguish different functions.

The first underscore is, generally, the names of functions in the system and libraries use an underscore as the first character.

Here _t represents int type (integer 64 or 32-bit function), the next t means text or string (string), to means to in English, to means i It is an integer, an integer type.

A function that converts a cstring string to int 64 or 32.

int nCategories = _ttoi(szCategories);

or __int32 nCategories = _ttoi(szCategories);

and __int64 nCategories = _ttoi64(szCategories);< /p>