Error c4430: Missing type specifier-int assumed. Note: C ++ does not support default-int

When writing a dynamic database, the system always prompts error 4430 and didn't pay too much attention to it at first. Later I checked and found that the returned data type was not defined during the declaration.

Error c4430 often appears in vs2005, especially for beginners who just transferred from vs6.0, because in vs6.0, when there is no type identifier, the default value is int type, in vs2005, the compiler has been improved to impose more stringent restrictions. Developers must explicitly specify the data type.

You can use either of the following solutions:

1. # Pragma warning (Disable: 4430)
2. [Configuration properties] [C/C ++] [command line], add/wd4430
3. Adds a return type to the function (recommended ).