From 51997464083b02e3f77dec378aaa90fd23116e19 Mon Sep 17 00:00:00 2001
From: Sektor van Skijlen <ethouris@gmail.com>
Date: Mon, 27 May 2024 23:10:09 +0200
Subject: [PATCH] Added extra version of snprintf for old Windows

---
 srtcore/sfmt.h | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/srtcore/sfmt.h b/srtcore/sfmt.h
index 61bbd8914..cb64b90f5 100644
--- a/srtcore/sfmt.h
+++ b/srtcore/sfmt.h
@@ -617,18 +617,24 @@ class obufstream
 
 namespace internal
 {
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#define FMT_SYM_SNPRINTF _snprintf
+#define FMT_SIZE_SNPRINTF(bufsize) (bufsize-1)
+#else
+#define FMT_SYM_SNPRINTF std::snprintf
+#define FMT_SIZE_SNPRINTF(bufsize) bufsize
+#endif
+
 template<class ValueType>
 static inline size_t SNPrintfOne(char* buf, size_t bufsize, const char* fmt, const ValueType& val)
-{
-    return std::snprintf(buf, bufsize, fmt, val);
-}
-
+{ return FMT_SYM_SNPRINTF (buf, FMT_SIZE_SNPRINTF(bufsize), fmt, val); }
 
 static inline size_t SNPrintfOne(char* buf, size_t bufsize, const char* fmt, const std::string& val)
-{
-    return std::snprintf(buf, bufsize, fmt, val.c_str());
-}
+{ return FMT_SYM_SNPRINTF(buf, FMT_SIZE_SNPRINTF(bufsize), fmt, val.c_str()); }
+
 }
+#undef FMT_SYM_SNPRINTF
+#undef FMT_SIZE_SNPRINTF
 
 template <class Value> inline
 internal::form_memory_buffer<> sfmt(const Value& val, const char* fmtspec = 0)