Re: 1-byte buffer underflow in flex.

[John]

> There is a 1-byte buffer underflow in yy_scan_bytes() due to its
> use of a mix of signed/unsigned integers to track buffer sizes.  If
> sent a 'len' parameter of 4294967295, yy_scan_bytes() will write
> YY_END_OF_BUFFER_CHAR to the byte preceeding the 'buf' storage area.A

I guess we could change it to size_t. How did you manage to pass
4294967295 as an int without your compiler complaining?

$ gcc test.c
test.c: In function `main':
test.c:13: warning: decimal constant is so large that it is unsigned