From 36fb1f96e2ccc151013e6ca7dfbb0eb8559826a2 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf.pld@gmail.com>
Date: Fri, 31 Jan 2020 01:19:08 +0100
Subject: [PATCH] Custom float-printing function.

---
 server/TracyPrint.cpp | 11 +++++------
 server/TracyPrint.hpp |  8 ++++++++
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/server/TracyPrint.cpp b/server/TracyPrint.cpp
index 229ca194..fde2d0a4 100644
--- a/server/TracyPrint.cpp
+++ b/server/TracyPrint.cpp
@@ -280,29 +280,28 @@ const char* MemSizeToString( int64_t val )
     };
     Unit unit;
 
+    char* ptr;
     if( aval < 10000ll * 1024 )
     {
-        sprintf( buf, "%.2f", val / 1024. );
+        ptr = PrintFloat( buf, buf+64, val / 1024., 2 );
         unit = Unit::Kilobyte;
     }
     else if( aval < 10000ll * 1024 * 1024 )
     {
-        sprintf( buf, "%.2f", val / ( 1024. * 1024 ) );
+        ptr = PrintFloat( buf, buf+64, val / ( 1024. * 1024 ), 2 );
         unit = Unit::Megabyte;
     }
     else if( aval < 10000ll * 1024 * 1024 * 1024 )
     {
-        sprintf( buf, "%.2f", val / ( 1024. * 1024 * 1024 ) );
+        ptr = PrintFloat( buf, buf+64, val / ( 1024. * 1024 * 1024 ), 2 );
         unit = Unit::Gigabyte;
     }
     else
     {
-        sprintf( buf, "%.2f", val / ( 1024. * 1024 * 1024 * 1024 ) );
+        ptr = PrintFloat( buf, buf+64, val / ( 1024. * 1024 * 1024 * 1024 ), 2 );
         unit = Unit::Terabyte;
     }
 
-    auto ptr = buf;
-    while( *ptr ) ptr++;
     ptr--;
     while( ptr >= buf && *ptr == '0' ) ptr--;
     if( *ptr != '.' ) ptr++;
diff --git a/server/TracyPrint.hpp b/server/TracyPrint.hpp
index 5f132d02..b6150391 100644
--- a/server/TracyPrint.hpp
+++ b/server/TracyPrint.hpp
@@ -1,9 +1,17 @@
 #ifndef __TRACYPRINT_HPP__
 #define __TRACYPRINT_HPP__
 
+#include <stdio.h>
+
 namespace tracy
 {
 
+template<typename T>
+static inline char* PrintFloat( char* begin, char* end, T value, int precision )
+{
+    return begin + sprintf( begin, "%.*f", precision, value );
+}
+
 const char* TimeToString( int64_t ns );
 const char* RealToString( double val, bool separator );
 const char* MemSizeToString( int64_t val );