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API > API/Runtime > API/Runtime/Core > API/Runtime/Core/Containers > API/Runtime/Core/Containers/FString > API/Runtime/Core/Containers/FString/Find
References
| Module | Core |
| Header | /Engine/Source/Runtime/Core/Public/Containers/UnrealString.h |
| Include | #include "Containers/UnrealString.h" |
template<typename TCharRangeType, std::enable_if_t< TIsCharRangeNotCArrayNotFString< TCharRangeType >::Value > &42;>
int32 Find
&40;
TCharRangeType && SubStr,
ESearchCase::Type SearchCase,
ESearchDir::Type SearchDir,
int32 StartPosition
&41; const
Remarks
Searches the string for a substring, and returns index into this string of the first found instance. Can search from beginning or end, and ignore case or not. If substring is empty, returns clamped StartPosition.
When searching backwards where a StartPosition is provided, searching will actually begin from StartPosition - SubStr.Len(), therefore:FString("X").Find("X", ESearchCase::CaseSensitive, ESearchDir::FromEnd, 0) == INDEX_NONE
Consider using UE::String::FindLast() as an alternative.
Parameters
| Name | Description |
|---|---|
| SubStr | The string to search for |
| StartPosition | The start character position to search from |
| SearchCase | Indicates whether the search is case sensitive or not ( defaults to ESearchCase::IgnoreCase ) |
| SearchDir | Indicates whether the search starts at the beginning or at the end ( defaults to ESearchDir::FromStart ) |