20 Fév
2012
20 Fév
'12
06:42
Hi,
I want to use the M_PI constant, which is defined in C as #define M_PI 3.14159265358979323846, with 21 decimals. For the Cairo bindings, the full precision is needed, because drawing a circle is done by drawing an arc 2*M_PI long, and the algorithm only considers it a circle when the 2*pi is passed with the proper precision. What's the way to support this precision for the FFI bindings, so I can pass that value to the affected functions as it is done in C without a special wrapper function for each case?
Best regards,
Álvaro