Added IMGUI_USE_STB_SPRINTF (undocumented) (#1038)
diff --git a/imgui.cpp b/imgui.cpp
index bcd4daf..2e7ceb6 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -1351,6 +1351,11 @@
// B) When buf==NULL vsnprintf() will return the output size.
#ifndef IMGUI_DISABLE_FORMAT_STRING_FUNCTIONS
+#ifdef IMGUI_USE_STB_SPRINTF
+#define STB_SPRINTF_IMPLEMENTATION
+#include "imstb_sprintf.h"
+#endif
+
#if defined(_MSC_VER) && !defined(vsnprintf)
#define vsnprintf _vsnprintf
#endif
@@ -1359,7 +1364,11 @@
{
va_list args;
va_start(args, fmt);
+#ifdef IMGUI_USE_STB_SPRINTF
+ int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
+#else
int w = vsnprintf(buf, buf_size, fmt, args);
+#endif
va_end(args);
if (buf == NULL)
return w;
@@ -1371,7 +1380,11 @@
int ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args)
{
+#ifdef IMGUI_USE_STB_SPRINTF
+ int w = stbsp_vsnprintf(buf, (int)buf_size, fmt, args);
+#else
int w = vsnprintf(buf, buf_size, fmt, args);
+#endif
if (buf == NULL)
return w;
if (w == -1 || w >= (int)buf_size)
