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AP_Math: allow write to indexed vector2

This commit is contained in:
Andrew Tridgell 2017-10-11 15:19:28 +11:00
parent f088c3de23
commit 3d2c4ffa79
1 changed files with 10 additions and 1 deletions
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11
libraries/AP_Math/vector2.h
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@ -104,6 +104,15 @@ struct Vector2
// check if all elements are zero
bool is_zero(void) const { return (fabsf(x) < FLT_EPSILON) && (fabsf(y) < FLT_EPSILON); }
// allow a vector2 to be used as an array, 0 indexed
T & operator[](uint8_t i) {
T *_v = &x;
#if MATH_CHECK_INDEXES
assert(i >= 0 && i < 2);
#endif
return _v[i];
}
const T & operator[](uint8_t i) const {
const T *_v = &x;
#if MATH_CHECK_INDEXES
@ -111,7 +120,7 @@ struct Vector2
#endif
return _v[i];
}
// zero the vector
void zero()
{