C++ In a Nutshell

Name

FILENAME_MAX macro — Maximum length of a filename

Synopsis

int FILENAME_MAX
               

FILENAME_MAX is the size you should use when declaring a character array that will store a filename. Some systems do not have a fixed maximum size for a filename, in which case FILENAME_MAX is a recommended size, and the resulting character array might not be large enough to hold all valid filenames. The FILENAME_MAX macro expands to a constant integer.

Note

Use std::string instead of a character array to avoid any problems with character arrays that are too small.