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Diffstat (limited to 'doc')
-rw-r--r-- | doc/manual.rst | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/doc/manual.rst b/doc/manual.rst index 75cc507a4..a7bca7616 100644 --- a/doc/manual.rst +++ b/doc/manual.rst @@ -6210,25 +6210,6 @@ the underlying backend (C compiler) does not support the computed goto extension the pragma is simply ignored. -unroll pragma -------------- -The ``unroll`` pragma can be used to tell the compiler that it should unroll -a `for`:idx: or `while`:idx: loop for execution efficiency: - -.. code-block:: nim - proc searchChar(s: string, c: char): int = - for i in 0 .. s.high: - {.unroll: 4.} - if s[i] == c: return i - result = -1 - -In the above example, the search loop is unrolled by a factor 4. The unroll -factor can be left out too; the compiler then chooses an appropriate unroll -factor. - -**Note**: Currently the compiler recognizes but ignores this pragma. - - immediate pragma ---------------- |