ULIOL - Use 'L' Instead Of 'l' at the end of integer constant

It is difficult to distinct lower case letter 'l' and digit '1'. As far as letter 'l' can be used as long modifier at the end of integer constant, it can be mixed with digit. It is better to use uppercase 'L'.

Wrong

`void func () {
long var = 0x0001111l;
}`

Tip: Change trailing 'l' letter at the end of integer constants with 'L'.

Right

`void func () {
long var = 0x0001111L;
}`