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29 lines
1.6 KiB
Markdown
29 lines
1.6 KiB
Markdown
# Improvements to C/C++ analysis
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The following changes in version 1.24 affect C/C++ analysis in all applications.
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## General improvements
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## New queries
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| **Query** | **Tags** | **Purpose** |
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|-----------------------------|-----------|--------------------------------------------------------------------|
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## Changes to existing queries
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| **Query** | **Expected impact** | **Change** |
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|----------------------------|------------------------|------------------------------------------------------------------|
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| Hard-coded Japanese era start date (`cpp/japanese-era/exact-era-date`) | | This query is no longer run on LGTM. |
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| No space for zero terminator (`cpp/no-space-for-terminator`) | Fewer false positive results | This query has been modified to be more conservative when identifying which pointers point to null-terminated strings. This approach produces fewer, more accurate results. |
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## Changes to libraries
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* The new class `StackVariable` should be used in place of `LocalScopeVariable`
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in most cases. The difference is that `StackVariable` does not include
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variables declared with `static` or `thread_local`.
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* As a rule of thumb, custom queries about the _values_ of variables should
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be changed from `LocalScopeVariable` to `StackVariable`, while queries
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about the _name or scope_ of variables should remain unchanged.
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* The `LocalScopeVariableReachability` library is deprecated in favor of
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`StackVariableReachability`. The functionality is the same.
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