🔨 improved performance in dump for deeply nested values

7b05e1a6 · Niels Lohmann · f697fec5 · 7b05e1a6
Unverified Commit 7b05e1a6 authored Jul 08, 2017 by Niels Lohmann
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src/json.hpp src/json.hpp +2 -2

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--- a/src/json.hpp
+++ b/src/json.hpp
@@ -6789,9 +6789,9 @@ class basic_json

                        // variable to hold indentation for recursive calls
                        const auto new_indent = current_indent + indent_step;
-                        if (indent_string.size() < new_indent)
+                        if (JSON_UNLIKELY(indent_string.size() < new_indent))
                        {
-                            indent_string.resize(new_indent, ' ');
+                            indent_string.resize(indent_string.size() * 2, ' ');
                        }

                        // first n-1 elements