Created
May 14, 2014 11:24
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CGFloatEqual
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| BOOL CGFloatEqual(CGFloat a, CGFloat b, CGFloat accuracy) | |
| { | |
| #if CGFLOAT_IS_DOUBLE | |
| if (fabs(a-b) < accuracy * DBL_EPSILON * fabs(a+b) || fabs(a-b) < DBL_MIN) | |
| { | |
| return YES; | |
| } | |
| #else | |
| if (fabs(a-b) < accuracy * FLT_EPSILON * fabs(a+b) || fabs(a-b) < FLT_MIN) | |
| { | |
| return YES; | |
| } | |
| #endif | |
| return NO; | |
| } |
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What is a suggested value for accuracy? Should it be like
0.9999fand we add more 9s to lower the tolerance?