1
0
mirror of https://github.com/postgres/postgres.git synced 2025-07-08 11:42:09 +03:00

Get rid of trailing semicolons in C macro definitions.

Writing a trailing semicolon in a macro is almost never the right thing,
because you almost always want to write a semicolon after each macro
call instead.  (Even if there was some reason to prefer not to, pgindent
would probably make a hash of code formatted that way; so within PG the
rule should basically be "don't do it".)  Thus, if we have a semi inside
the macro, the compiler sees "something;;".  Much of the time the extra
empty statement is harmless, but it could lead to mysterious syntax
errors at call sites.  In perhaps an overabundance of neatnik-ism, let's
run around and get rid of the excess semicolons whereever possible.

The only thing worse than a mysterious syntax error is a mysterious
syntax error that only happens in the back branches; therefore,
backpatch these changes where relevant, which is most of them because
most of these mistakes are old.  (The lack of reported problems shows
that this is largely a hypothetical issue, but still, it could bite
us in some future patch.)

John Naylor and Tom Lane

Discussion: https://postgr.es/m/CACPNZCs0qWTqJ2QUSGJ07B7uvAvzMb-KbG2q+oo+J3tsWN5cqw@mail.gmail.com
This commit is contained in:
Tom Lane
2020-05-01 17:28:00 -04:00
parent d66935448f
commit 0da06d9faf
13 changed files with 28 additions and 23 deletions

View File

@ -80,7 +80,7 @@ do { \
} while (0)
#define SWAPINIT(a, es) swaptype = ((char *)(a) - (char *)0) % sizeof(long) || \
(es) % sizeof(long) ? 2 : (es) == sizeof(long)? 0 : 1;
(es) % sizeof(long) ? 2 : (es) == sizeof(long)? 0 : 1
static void
swapfunc(char *a, char *b, size_t n, int swaptype)