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-rw-r--r--lib/pure/strscans.nim2
-rw-r--r--lib/system.nim2
2 files changed, 3 insertions, 1 deletions
diff --git a/lib/pure/strscans.nim b/lib/pure/strscans.nim
index b17eee6ff..734317e67 100644
--- a/lib/pure/strscans.nim
+++ b/lib/pure/strscans.nim
@@ -317,7 +317,7 @@ macro scanf*(input: string; pattern: static[string]; results: varargs[typed]): b
 
   template at(s: string; i: int): char = (if i < s.len: s[i] else: '\0')
   template matchError() =
-    error("type mismatch between pattern '$" & pattern[p] & "' (position: " & $p & ") and " & $getType(results[i]) &
+    error("type mismatch between pattern '$" & pattern[p] & "' (position: " & $p & ") and " & repr(getType(results[i])) &
           " var '" & repr(results[i]) & "'")
 
   var i = 0
diff --git a/lib/system.nim b/lib/system.nim
index ef6138ad1..353500a4a 100644
--- a/lib/system.nim
+++ b/lib/system.nim
@@ -1237,6 +1237,8 @@ proc cmp*[T](x, y: T): int {.procvar.} =
 
 proc cmp*(x, y: string): int {.noSideEffect, procvar.}
   ## Compare proc for strings. More efficient than the generic version.
+  ## **Note**: The precise result values depend on the used C runtime library and
+  ## can differ between operating systems!
 
 proc `@`* [IDX, T](a: array[IDX, T]): seq[T] {.
   magic: "ArrToSeq", nosideeffect.}