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clear definition for `lua_number2int'

This commit is contained in:
Roberto Ierusalimschy 2004-06-02 10:24:43 -03:00
parent 0dfd04eb60
commit 557f0009c4
1 changed files with 7 additions and 3 deletions
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10
luaconf.h
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@ -1,5 +1,5 @@
/*
** $Id: luaconf.h,v 1.3 2004/05/10 17:50:51 roberto Exp roberto $
** $Id: luaconf.h,v 1.4 2004/05/28 18:32:51 roberto Exp roberto $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
@ -156,9 +156,13 @@
/* function to convert a lua_Number to int (with any rounding method) */
#if defined(__GNUC__) && defined(__i386)
#define lua_number2int(i,d) __asm__("fldl %1\nfistpl %0":"=m"(i):"m"(d))
#define lua_number2int(i,d) __asm__ ("fistpl %0":"=m"(i):"t"(d):"st")
#elif 0
/* on machines compliant with C99, you can try `lrint' */
#include <math.h>
#define lua_number2int(i,d) ((i)=lrint(d))
#else
#define lua_number2int(i,n) ((i)=(int)(n))
#define lua_number2int(i,d) ((i)=(int)(d))
#endif
/* function to convert a lua_Number to lua_Integer (with any rounding method) */