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authorBjörn Gustavsson <[email protected]>2015-09-29 08:40:09 +0200
committerTomas Abrahamsson <[email protected]>2018-05-06 23:43:35 +0200
commit55e852080d459b9b2be18cf41de60c3338f266af (patch)
tree68f78338a88c575944f8ecb05f3b9d09178410bf /lib/syntax_tools/src
parent5a4112b53facc42fec58ca31b96b2791bd70d328 (diff)
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epp: Add the pre-defined macro OTP_RELEASE
Add a new pre-defined macro called OTP_RELEASE that will expand to an integer being the OTP version. Thus, in OTP 19 the value will be the integer 19. The OTP_RELEASE macro is particularly useful in order to have different source code depending on new language features or new features in the type specification syntax. Those features are only introduced in major versions of OTP. To be truly useful, the -if preprocessor directive need to be implemented. That is the purpose of the next commit. Code that will need to work in both OTP 18 and OTP 19 can be structured in the following way: -ifdef(OTP_RELEASE). %% Code that only works in OTP 19 and later. -else. %% Code that will work in OTP 18. -endif.
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