At the moment France is using the Euro but previous to that it was the French Francs.
France has the Euro as its currency.

a coin is called 'une pièce' in French. The currency they use is the Euro, so the coins could be euros or the subdivision 'cents'

None for any of the non-commemorative coins since France uses the euro. However, Charles de Gaulle is on one of their commemorative 2 euro coins.

France adopted Euro as its currency in 1999. Before adopting Euro the French currency was French Francs. Euro is adopted by 18 of 28 member countries of European union.

What?! Accept euro coins?? Who accept euro coins in the first place?