operator ++ for char data type

[persevering]

i saw a code, it was writen:

char x[15]="data00.dat";
++x[5];

i don't understand ++x[5]; operator
can you help me to understand this code?
thanks!!!

[Bazzy]

That increments the 6^th character in the array so the result would be
"data01.dat"

[persevering]

thanks!!!
is this follow rule?
if it witen : ++x[6], the result would be ...?

[Disch]

char x[15]="data00.dat";
++x[6];

you're left with "data00/dat"

This is because the period '.' is 0x2E in ASCII, and the slash '/' is 0x2F.

Try:

if('.' == 0x2E) // this will be true
if('/' == 0x2F) // as will this 

[Bazzy]

For ascii values see http://www.cplusplus.com/doc/ascii.html