Add BOOST_PP_BOOL_true and BOOST_PP_BOOL_false definitions

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
55/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Stale
Tech stack
cpp
Domain
compilers

Research direction

Start by locating the existing BOOST_PP_BOOL implementation and its tests in the preprocessor module. Check how boolean-like macro names are defined and exercised, then add the true and false definitions and verify that BOOST_PP_IF receives 1 or 0 for those inputs.

Written by the indexing model from the issue text.

Description

I suggest to define a new macro

#define BOOST_PP_BOOL_true 1
#define BOOST_PP_BOOL_false 0

for make that possible:

BOOST_PP_IF(BOOST_PP_BOOL(true/false), "YES", "NO")
//          ^-- Expands into 1/0

It seems like simple behavior and I have no idea why its not added yet.

Dominant language
C++
Stars
118
Forks
76
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