add test

nim-lang · Feb 6, 2020 · 64ac0e7 · 64ac0e7
1 parent ce1a9a9
commit 64ac0e7
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/tests/float/tfloat8.nim b/tests/float/tfloat8.nim
@@ -0,0 +1,17 @@
+
+
+{.passL: "-lm".}
+
+import strutils
+
+proc nextafter(a,b: float64): float64 {.importc: "nextafter", header: "<math.h>".}
+
+var myFloat = 2.5
+
+for i in 0 .. 100:
+  let newFloat = nextafter(myFloat, Inf)
+  let oldStr = $myFloat
+  let newStr = $newFloat
+  doAssert parseFloat(newStr) == newFloat
+  doAssert oldStr != newStr
+  myFloat = newFloat