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Add compile-time option PB_BUFFER_ONLY.

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This allows slight optimizations if only memory buffer support
(as opposed to stream callbacks) is wanted. On ARM difference
is -12% execution time, -4% code size when enabled.
This commit is contained in:
Petteri Aimonen
2013-02-06 20:54:25 +02:00
parent 39b8a5e2bb
commit 4ba6a3027d
6 changed files with 60 additions and 3 deletions
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docs/reference.rst
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@@ -22,6 +22,8 @@ PB_FIELD_32BIT Add support for tag numbers > 65535 and fields la
Increases code size 9 bytes per each field. Compiler error will tell if you need this.
PB_NO_ERRMSG Disables the support for error messages; only error information is the true/false return value.
Decreases the code size by a few hundred bytes.
PB_BUFFER_ONLY Disables the support for custom streams. Only supports encoding to memory buffers.
Speeds up execution and decreases code size slightly.
============================ ================================================================================================
The PB_MAX_REQUIRED_FIELDS, PB_FIELD_16BIT and PB_FIELD_32BIT settings allow raising some datatype limits to suit larger messages.