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Document const, inline, volatile checks semantics

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This commit is contained in:
Boris Kolpackov 2022-04-26 08:53:09 +02:00
parent 86ce902bf6
commit c2e0802100
3 changed files with 18 additions and 0 deletions
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6
libbuild2-autoconf/libbuild2/autoconf/checks/const.h
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@ -1,2 +1,8 @@
// const // const
/* This check is unusual in that for a positive answer (the compiler supports
const) we undefine const to allow the compiler to recognize it as a keyword
and for a negative answer we define it to nothing so that const is
effectively removed from the user code. */
#undef const #undef const

6
libbuild2-autoconf/libbuild2/autoconf/checks/inline.h
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@ -1,2 +1,8 @@
// inline // inline
/* This check is unusual in that for a positive answer (the compiler supports
inline) we undefine inline to allow the compiler to recognize it as a
keyword and for a negative answer we define it to nothing so that inline is
effectively removed from the user code. */
#undef inline #undef inline

6
libbuild2-autoconf/libbuild2/autoconf/checks/volatile.h
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@ -1,2 +1,8 @@
// volatile // volatile
/* This check is unusual in that for a positive answer (the compiler supports
volatile) we undefine volatile to allow the compiler to recognize it as a
keyword and for a negative answer we define it to nothing so that volatile
is effectively removed from the user code. */
#undef volatile #undef volatile