From b63c16c55f604cd8dc0bb4441d7c674f5bc34d4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Lam?= <leo@leolam.fr>
Date: Mon, 1 Nov 2021 14:56:23 +0100
Subject: ksys/util: Fix C++17 compliance in FixedString

Lambda expressions cannot appear in a template argument pre-C++20.
---
 src/KingSystem/Utils/FixedString.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src/KingSystem/Utils/FixedString.h')

diff --git a/src/KingSystem/Utils/FixedString.h b/src/KingSystem/Utils/FixedString.h
index 039df272..1119ac0b 100644
--- a/src/KingSystem/Utils/FixedString.h
+++ b/src/KingSystem/Utils/FixedString.h
@@ -56,13 +56,14 @@ template <auto N, int base = 10>
 constexpr auto Str() {
     constexpr char digits[] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 
-    FixedString<([]() constexpr noexcept {
+    constexpr auto len = [] {
         unsigned int len = N > 0 ? 0 : 1;
         for (auto n = N; n; len++, n /= base)
             continue;
         return len;
-    }())>
-        buf{};
+    }();
+
+    FixedString<len> buf{};
 
     auto ptr = buf.data() + buf.length();
     if (N == 0) {
-- 
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