AeThex-Engine-Core/engine/thirdparty/sdl/libm/s_isnan.c
MrPiglr 9dddce666d
🚀 AeThex Engine v1.0 - Complete Fork
- Forked from Godot Engine 4.7-dev (MIT License)
- Rebranded to AeThex Engine with cyan/purple theme
- Added AI-powered development assistant module
- Integrated Claude API for code completion & error fixing
- Custom hexagon logo and branding
- Multi-platform CI/CD (Windows, Linux, macOS)
- Built Linux editor binary (151MB)
- Complete source code with all customizations

Tech Stack:
- C++ game engine core
- AI Module: Claude 3.5 Sonnet integration
- Build: SCons, 14K+ source files
- License: MIT (Godot) + Custom (AeThex features)

Ready for Windows build via GitHub Actions!
2026-02-23 05:01:56 +00:00

31 lines
751 B
C

#include "SDL_internal.h"
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/*
* isnan(x) returns 1 is x is nan, else 0;
* no branching!
*/
#include "math.h"
#include "math_private.h"
int __isnan(double x)
{
int32_t hx,lx;
EXTRACT_WORDS(hx,lx,x);
hx &= 0x7fffffff;
hx |= (u_int32_t)(lx|(-lx))>>31;
hx = 0x7ff00000 - hx;
return (int)(((u_int32_t)hx)>>31);
}
weak_alias(__isnan, isnan)
libm_hidden_def(__isnan)