[lldb] Fix string truncation method when substring is the prefix of string (NFC) #94785
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@llvm/pr-subscribers-lldb Author: Shivam Gupta (xgupta) Changeslldb/source/Plugins/Platform/Android/PlatformAndroid.cpp:290:19: performance: Ineffective call of function 'substr' because a prefix of the string is assigned to itself. Use resize() or pop_back() instead. [uselessCallsSubstr] Fix #91211 Full diff: https://github.com/llvm/llvm-project/pull/94785.diff 1 Files Affected:
diff --git a/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp b/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp
index e177c134fea20..6367763dd8b4a 100644
--- a/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp
+++ b/lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp
@@ -287,7 +287,7 @@ Status PlatformAndroid::DownloadModuleSlice(const FileSpec &src_file_spec,
static constexpr llvm::StringLiteral k_zip_separator("!/");
size_t pos = source_file.find(k_zip_separator);
if (pos != std::string::npos)
- source_file = source_file.substr(0, pos);
+ source_file = source_file.resize(0, pos);
Status error;
AdbClientUP adb(GetAdbClient(error));
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…tring (NFC) (llvm#94785) Correct the method used to truncate the source_file string when substring is a prefix. The previous method used substr, which was changed to resize for clarity and efficiency. Caught by cppcheck - lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp:290:19: performance: Ineffective call of function 'substr' because a prefix of the string is assigned to itself. Use resize() or pop_back() instead. [uselessCallsSubstr] Source code - source_file = source_file.substr(0, pos); Fix llvm#91211 --------- Co-authored-by: Shivam Gupta <[email protected]>
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Correct the method used to truncate the source_file string when substring is a prefix. The previous method used substr, which was changed to resize for clarity and efficiency.
Caught by cppcheck -
lldb/source/Plugins/Platform/Android/PlatformAndroid.cpp:290:19: performance: Ineffective call of function 'substr' because a prefix of the string is assigned to itself. Use resize() or pop_back() instead. [uselessCallsSubstr]
Source code -
source_file = source_file.substr(0, pos);
Fix #91211