qst sono gli errori :
[Warning] In function `main':
`Convertitore' undeclared (first use in this function)
[Build Error] (Each undeclared identifier is reported only once
[Build Error] for each function it appears in.)
[Build Error] At top level:
`Convertitore' used prior to declaration
[Warning] In function `Convertitore':
`var' undeclared (first use in this function)
`c' undeclared (first use in this function)
`x' undeclared (first use in this function)
`euro'undeclared (first use in this function)
`dollari' undeclared (first use in this function)
`risultato' undeclared (first use in this function)
parse error at end of input