[h323plus] Migration to ANSI bool in PTLib
craigs at postincrement.com
Tue Nov 27 01:26:36 EST 2007
As described previously, PTLib is about to migrate the internal type
PBoolean the ANSI type "bool". This will affect all member functions
that use BOOL parameters and are overrides of standard PTLib and Opal
The reasons for this are to improve efficiency, and to improve
compatibility with other libraries.
Backwards compatibility is supported as follows:
- The Unix configure option "--disable-ansi-bool" will enable the old
"int BOOL" behaviour
- The presence of the symbol P_USE_STANDARD_CXX_BOOL will indicate the
new ANSI bool is being used, while the presence of P_USE_INTEGER_BOOL
will indicate the old "int BOOL" behavior is in effect.
- The new type PBoolean is be defined as either "bool" or "int" as required.
The plan for migration to the new code will be in two steps:
1. A snapshot of the SVN current development trunk will be created, that
does not include the PBoolean changes (PTLib 2.1.1/Opal 3.1.1)
2. We will then merge the PBoolean changes into the SVN head. This will
be (PTLib 2.1.2/Opal 3.1.2)
We'd like to do this in the next few days so we can move on to other
pressing merge issues (yes Hannes - we are desperate to get your changes
Please email opalvoip-devel at lists.sourceforge.net if you have any
further questions or issues.
More information about the h323plus