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authorPetteri Aimonen <jpa@git.mail.kapsi.fi>2012-06-30 19:28:49 +0300
committerPetteri Aimonen <jpa@git.mail.kapsi.fi>2012-06-30 19:28:49 +0300
commit78086cc27d746a425f3f1130e822275bdb623090 (patch)
treee22f1c33724651abe325cdad9c25fa9c1c815184 /docs
parent67add3259a6429cb4afc1bdb6345e8c057a55ca8 (diff)
Add PB_MANY_FIELDS option for supporting fields > 255.
Add generator warning if this is necessary. Fixes issue #14.
Diffstat (limited to 'docs')
-rw-r--r--docs/reference.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/reference.rst b/docs/reference.rst
index 81251fe6..aefc25f7 100644
--- a/docs/reference.rst
+++ b/docs/reference.rst
@@ -15,6 +15,8 @@ __BIG_ENDIAN__ Set this if your platform stores integers and flo
Mixed-endian systems (different layout for ints and floats) are currently not supported.
NANOPB_INTERNALS Set this to expose the field encoder functions that are hidden since nanopb-0.1.3.
PB_MAX_REQUIRED_FIELDS Maximum number of required fields to check for presence. Default value is 64.
+PB_MANY_FIELDS Add support for tag numbers > 255 and fields larger than 255 bytes or 255 array entries.
+ Increases code size 9 bytes per each field. Compiler error will tell if you need this.
============================ ==============================================================================================
pb.h
@@ -77,7 +79,7 @@ Describes a single structure field with memory position in relation to others. T
:array_size: Maximum number of entries in an array, if it is an array type.
:ptr: Pointer to default value for optional fields, or to submessage description for PB_LTYPE_SUBMESSAGE.
-The *uint8_t* datatypes limit the maximum size of a single item to 255 bytes and arrays to 255 items. Compiler will warn "Initializer too large for type" if the limits are exceeded. The types can be changed to larger ones if necessary.
+The *uint8_t* datatypes limit the maximum size of a single item to 255 bytes and arrays to 255 items. Compiler will give error if the values are too large. The types can be changed to larger ones by defining *PB_MANY_FIELDS*.
pb_bytes_array_t
----------------