It sounds like you are not familiar with the most vexing parse. https://en.wikipedia.org/wiki/Most_vexing_parse , https://stackoverflow.com/questions/14077608/what-is-the-pur...

Also pointer/multiplication ambiguity: https://medium.com/@bartobri/exploring-the-ambiguous-nature-... , https://softwareengineering.stackexchange.com/questions/1245... , https://stackoverflow.com/questions/41331871/how-c-c-parser-...