From 5e2614a7d63647ece5774725a85e9482b9f02057 Mon Sep 17 00:00:00 2001
From: def <dennis@felsin9.de>
Date: Wed, 23 Jul 2014 15:47:46 +0200
Subject: Add newSeqWith

---
 lib/system.nim | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'lib')

diff --git a/lib/system.nim b/lib/system.nim
index 2fb08563a..96c611282 100644
--- a/lib/system.nim
+++ b/lib/system.nim
@@ -476,6 +476,23 @@ proc newSeq*[T](len = 0): seq[T] =
   ##   #inputStrings[3] = "out of bounds"
   newSeq(result, len)
 
+template newSeqWith*(len: int, init: expr): expr =
+  ## creates a new sequence, calling `init` to initialize each value. Example:
+  ##
+  ## .. code-block:: nimrod
+  ##   var seq2D = newSeqWith(20, newSeq[bool](10))
+  ##   seq2D[0][0] = true
+  ##   seq2D[1][0] = true
+  ##   seq2D[0][1] = true
+  ##
+  ##   import math
+  ##   var seqRand = newSeqWith(20, random(10))
+  ##   echo seqRand
+  var result {.gensym.} = newSeq[type(init)](len)
+  for i in 0 .. <len:
+    result[i] = init
+  result
+
 proc len*[TOpenArray: openArray|varargs](x: TOpenArray): int {.
   magic: "LengthOpenArray", noSideEffect.}
 proc len*(x: string): int {.magic: "LengthStr", noSideEffect.}
-- 
cgit 1.4.1-2-gfad0


From 61a6ecfd94140f8f6546eb008ccf1bfd5422e2ef Mon Sep 17 00:00:00 2001
From: def <dennis@felsin9.de>
Date: Mon, 11 Aug 2014 21:05:21 +0200
Subject: Move newSeqWith to sequtils

---
 lib/pure/collections/sequtils.nim | 24 ++++++++++++++++++++++++
 lib/system.nim                    | 17 -----------------
 2 files changed, 24 insertions(+), 17 deletions(-)

(limited to 'lib')

diff --git a/lib/pure/collections/sequtils.nim b/lib/pure/collections/sequtils.nim
index c50c4165b..2629e9f40 100644
--- a/lib/pure/collections/sequtils.nim
+++ b/lib/pure/collections/sequtils.nim
@@ -409,6 +409,23 @@ template mapIt*(varSeq, pred: expr) =
     let it {.inject.} = varSeq[i]
     varSeq[i] = pred
 
+template newSeqWith*(len: int, init: expr): expr =
+  ## creates a new sequence, calling `init` to initialize each value. Example:
+  ##
+  ## .. code-block:: nimrod
+  ##   var seq2D = newSeqWith(20, newSeq[bool](10))
+  ##   seq2D[0][0] = true
+  ##   seq2D[1][0] = true
+  ##   seq2D[0][1] = true
+  ##
+  ##   import math
+  ##   var seqRand = newSeqWith(20, random(10))
+  ##   echo seqRand
+  var result {.gensym.} = newSeq[type(init)](len)
+  for i in 0 .. <len:
+    result[i] = init
+  result
+
 when isMainModule:
   import strutils
   block: # concat test
@@ -557,4 +574,11 @@ when isMainModule:
     doAssert b.distribute(5, true)[4].len == 5
     doAssert b.distribute(5, false)[4].len == 2
 
+  block: # newSeqWith tests
+    var seq2D = newSeqWith(4, newSeq[bool](2))
+    seq2D[0][0] = true
+    seq2D[1][0] = true
+    seq2D[0][1] = true
+    doAssert seq2D == @[@[true, true], @[true, false], @[false, false], @[false, false]]
+
   echo "Finished doc tests"
diff --git a/lib/system.nim b/lib/system.nim
index 96c611282..2fb08563a 100644
--- a/lib/system.nim
+++ b/lib/system.nim
@@ -476,23 +476,6 @@ proc newSeq*[T](len = 0): seq[T] =
   ##   #inputStrings[3] = "out of bounds"
   newSeq(result, len)
 
-template newSeqWith*(len: int, init: expr): expr =
-  ## creates a new sequence, calling `init` to initialize each value. Example:
-  ##
-  ## .. code-block:: nimrod
-  ##   var seq2D = newSeqWith(20, newSeq[bool](10))
-  ##   seq2D[0][0] = true
-  ##   seq2D[1][0] = true
-  ##   seq2D[0][1] = true
-  ##
-  ##   import math
-  ##   var seqRand = newSeqWith(20, random(10))
-  ##   echo seqRand
-  var result {.gensym.} = newSeq[type(init)](len)
-  for i in 0 .. <len:
-    result[i] = init
-  result
-
 proc len*[TOpenArray: openArray|varargs](x: TOpenArray): int {.
   magic: "LengthOpenArray", noSideEffect.}
 proc len*(x: string): int {.magic: "LengthStr", noSideEffect.}
-- 
cgit 1.4.1-2-gfad0