init capacity #96
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init capacity #96
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avoid StringBuilder resize due to capacity
hk1ll3r
requested changes
Jun 20, 2022
| @@ -161,7 +161,7 @@ public class FastStringBuilder { | |||
| } | |||
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| public override string ToString() { | |||
| StringBuilder sb = new StringBuilder(); | |||
| StringBuilder sb = new StringBuilder(length * 2); | |||
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Ideally we should set the capacity to the eventual length of the string which we could compute by replicating the surrogate pair logic in our code. 2*length is an upper bound and allocates twice as much memory as is needed in most cases.
| @@ -170,10 +170,10 @@ public class FastStringBuilder { | |||
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| public string ToDebugString() | |||
| { | |||
| StringBuilder sb = new StringBuilder(); | |||
| StringBuilder sb = new StringBuilder(length * 3); | |||
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Let's not worry about performance of debug code.
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ToStringavoid StringBuilder resize due to capacityToDebugStringchang append (string) -> append(char)