- String.to_integer does not correctly return in some cases where it should #2590.

test/unit/stdlib/core/string_to_int.c3

@@ -0,0 +1,42 @@
+module string_to_int;
+import std::io, std::math;
+
+const N = 2560;
+macro String[] m() @const
+{
+    var $strings = {};
+    $foreach $i : math::iota(int[N]):
+        $strings +++= @sprintf("%s", $i);
+    $endforeach
+    return $strings;
+}
+
+macro String[] m2() @const
+{
+    var $strings = {};
+    $foreach $i : math::iota(int[N]):
+        $strings +++= @sprintf("%s", -$i);
+    $endforeach
+    return $strings;
+}
+
+fn void string_to_char() @test
+{
+	int valid = 0;
+    foreach (str : m())
+    {
+        char? x = str.to_integer(char);
+        if (try x) valid++;
+    }
+    assert(valid == 256);
+}
+fn void string_to_ichar() @test
+{
+	int valid = 0;
+    foreach (str : m2())
+    {
+        ichar? x = str.to_integer(ichar);
+        if (try x) valid++;
+    }
+    assert(valid == 129);
+}