[postgis-tickets] [PostGIS] #4614: Optimize stringbuffer_append to avoid strlen calls

[PostGIS]

#4614: Optimize stringbuffer_append to avoid strlen calls
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 Reporter:  Algunenano   |      Owner:  Algunenano
     Type:  enhancement  |     Status:  assigned
 Priority:  medium       |  Milestone:  PostGIS 3.1.0
Component:  postgis      |    Version:  master
 Keywords:               |
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 Related to https://trac.osgeo.org/postgis/ticket/4543

 stringbuffer_append is used to output txt (ST_AsText), KML and X3D, and it
 calculates the length of the string parameter even when the library
 already knows it (constant or the output of a previous function call).

 I plan to add an extra function (`stringbuffer_append_len`) that allows
 you to pass the length of the string and simply memcpy's it.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4614>
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