Support Board
Date/Time: Wed, 15 Jan 2025 11:56:32 +0000
Post From: Question About Float Precision in Sierra Chart API(ACSIL)
| [2024-08-06 00:59:48] |
| User856649 - Posts: 5 |
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I would like to bring up a common issue with floating-point precision in C++/SC study programming. Here's a quick C++ code snippet: --------------------------------------------------------- float y = 0.30f + 0.40f; if (y == 0.70f) cout << "True" <<endl; else cout << "False" << endl; ------------------------------------------------- output: False ---------------------------------------------------- I expected y to be 0.70f, so I thought output could be "True". However, due to how floating-point math works, y may not exactly equal 0.70f, which can lead to the output being "False" instead. this issue is quite common in programming, so that C# has a build-in type--decimal to avoid this issue. I've noticed that the Sierra Chart API(ACSIL) mainly uses float and double types for numbers/prices. Given the importance of precision in trading software, I'm curious if the Sierra Chart API accounts for float precision issues. Are there any built-in features or best practices to help developers avoid problems related to floating-point calculations? Thanks for your help. |