From a92b97ff4581c06186447776b2add937e8c937a8 Mon Sep 17 00:00:00 2001
From: dearblue <dearblue@users.osdn.me>
Date: Tue, 5 Nov 2024 22:07:53 +0900
Subject: [PATCH] Improve compliance with C++ standards

  - Avoid "Designated initializer"
    C++20 is required for C++.
  - Avoid "Compound literals"
    Not available for C++.
---
 mrbgems/mruby-io/src/file.c | 3 ++-
 src/dump.c                  | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/mrbgems/mruby-io/src/file.c b/mrbgems/mruby-io/src/file.c
index 2b3f71a6e..4d744eb48 100644
--- a/mrbgems/mruby-io/src/file.c
+++ b/mrbgems/mruby-io/src/file.c
@@ -90,7 +90,8 @@ flock(int fd, int operation)
   DWORD flags;
   flags = ((operation & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0)
           | ((operation & LOCK_SH) ? LOCKFILE_EXCLUSIVE_LOCK : 0);
-  OVERLAPPED ov = (OVERLAPPED){0};
+  static const OVERLAPPED zero_ov = {0};
+  OVERLAPPED ov = zero_ov;
   return LockFileEx(h, flags, 0, 0xffffffff, 0xffffffff, &ov) ? 0 : -1;
 }
 #endif
diff --git a/src/dump.c b/src/dump.c
index 031046d45..01d9eaae3 100644
--- a/src/dump.c
+++ b/src/dump.c
@@ -81,7 +81,7 @@ dump_float(mrb_state *mrb, uint8_t *buf, mrb_float f)
   union {
     double f;
     char s[sizeof(double)];
-  } u = {.f = (double)f};
+  } u = {(double)f};
 
   if (littleendian) {
     memcpy(buf, u.s, sizeof(double));