When generating .c files from .function files, add #line directives so
that errors in the generated files are reported with the correct line
number. Also add #line directives to the template .function files, for
the same reason.
This is a backport of things that got added later than 2.1 in several stages.
Restructed test suite helper and main code to support tests suite helper
functions, changed C++ comments to C-style, and made the generated
source code more navigable.
Added to generate_code.pl:
- support for per test suite helper functions
- description of the structure of the files the script uses to construct
the test suite file
- delimiters through the source code to make the machine generated code
easier to understand
Our Windows implementation based on vsnprintf_s( ..., _TRUNCATE ) sometimes
writes *two* terminating NULLs. Allow for that, but obviously bytes past the
end of the buffer mustn't be touched.
- Added in each tests program to be sure they are run (putting them in a test
suite/function specific to the platform layer would cause them to be skipped
when PLATFORM_C is not defined).
- Platforms have already moved from a standard to a broken snprintf in the
past [1], so make sure to catch that if it ever happens again.
[1]: http://sourceforge.net/p/mingw-w64/mailman/message/31241434/
Things that are not guaranteed by the standard but should be true of all
platforms of interest to us:
- 8-bit chars
- NULL pointers represented by all-bits-zero
compile time
The new test framework generates a data file parsing engine plus the
templated function code. In order to 'understand' defines, during
the generation phase, a mapping is made to check for dependencies and
result code mappings.
