Question: If I want to Develop SSIS Package from scratch what techniques/needs to be fallow in related to design,development,testing and deployment.

Answer: 
```
char const* data = "F";
int num = int(strtol(data, 0, 16));

```

Look up strtol and [boost::lexical\_cast](http://www.boost.org/doc/libs/1_41_0/libs/conversion/lexical_cast.htm) for more details and options.
Use the `%x` format in [sscanf](http://www.cplusplus.com/reference/clibrary/cstdio/sscanf/)!