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Fix pgindent comment breakage

This commit is contained in:
Alvaro Herrera
2013-09-24 18:19:14 -03:00
parent ea0a8f0d22
commit 1e691588c1

View File

@ -352,11 +352,15 @@ visibilitymap_truncate(Relation rel, BlockNumber nheapblocks)
/* Clear out the unwanted bytes. */
MemSet(&map[truncByte + 1], 0, MAPSIZE - (truncByte + 1));
/*
/*----
* Mask out the unwanted bits of the last remaining byte.
*
* ((1 << 0) - 1) = 00000000 ((1 << 1) - 1) = 00000001 ... ((1 << 6) -
* 1) = 00111111 ((1 << 7) - 1) = 01111111
* ((1 << 0) - 1) = 00000000
* ((1 << 1) - 1) = 00000001
* ...
* ((1 << 6) - 1) = 00111111
* ((1 << 7) - 1) = 01111111
*----
*/
map[truncByte] &= (1 << truncBit) - 1;