zig

commit 558ece8f6f1889bc4773432c16cdf96a54ec1431 (tree)
parent 33c592e981f93f207651b8353a8cbc3d09440353
Author: Andrew Kelley <superjoe30@gmail.com>
Date:   Fri, 18 Aug 2017 17:54:42 -0400

slightly nicer floating point printing

Diffstat:
M
std/fmt/index.zig
 | 
20
++++++++++++++------

1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/std/fmt/index.zig b/std/fmt/index.zig
@@ -243,12 +243,20 @@ pub fn formatFloat(value: var, context: var, output: fn(@typeOf(context), []cons
         return false;
     if (!output(context, "."))
         return false;
-    if (!output(context, float_decimal.digits[1..]))
-        return false;
-    if (!output(context, "e"))
-        return false;
-    if (!formatInt(float_decimal.exp, 10, false, 0, context, output))
-        return false;
+    if (float_decimal.digits.len > 1) {
+        if (!output(context, float_decimal.digits[1 .. math.min(usize(7), float_decimal.digits.len)]))
+            return false;
+    } else {
+        if (!output(context, "0"))
+            return false;
+    }
+
+    if (float_decimal.exp != 1) {
+        if (!output(context, "e"))
+            return false;
+        if (!formatInt(float_decimal.exp, 10, false, 0, context, output))
+            return false;
+    }
     return true;
 }