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  1. point rotate(point origional, point around, radian add_angle) {
  2.     point offset = {origional.x-around.x, origional.y-around.y};
  3.     double length = distance(origional, around);
  4.     radian angle = atan2(offset.y, offset.x);
  5.     angle += add_angle;
  6.     point result = {length*cos(angle), length*sin(angle)};
  7.     result += around;
  8.     return result;
  9. }
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
prog.cpp:1: error: 'point' does not name a type
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Standard output is empty
https://ideone.com/S9cTrq
language:
C++ 4.3.2 (gcc-4.3.2)
created:
12 years ago
visibility:
secret

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