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Date/Time: Tue, 22 Apr 2025 03:27:50 +0000

Post From: Potential Bug: Backtesting chart replay causes crash when passing s_SCPositionData

[2025-02-14 12:57:34] Link To Thread - Link To Post [Go To First Post]
barucho - Posts: 13
Summary: Sierra Chart crashes with a "Buffer is too small" error (corecrt_internal_string_templates.h) during high-speed Chart Replay backtesting in sim accounts when using sc.GetTradePosition. The issue is linked to SCString Symbol and TradeAccount in s_SCPositionData. Reproduction: Run a study calling sc.GetTradePosition frequently. Use Chart Replay at high speed in a sim account. Crash occurs with "Buffer is too small" error. Workaround: Set positionData.Symbol = ""; and positionData.TradeAccount = ""; after sc.GetTradePosition to avoid crash. Suspected Cause: Potential buffer or corrupt string issue in sc.GetTradePosition or SCString handling during rapid backtesting. The issue occurs when passing the s_SCPositionData instance to functions that cause a copy. In particular, with the Symbol and/or TradeAccount strings. Version & System Info: Sierra Chart Version: 2739 64-bit OS: Windows 11
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