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new macro 'l_floor' (allows 'floorf' even when other math operations

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do not have an 'f' variant)
This commit is contained in:
Roberto Ierusalimschy 2013-06-20 12:02:49 -03:00
parent 55f566bd22
commit 453450d687
4 changed files with 10 additions and 9 deletions
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4
lapi.c
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@ -1,5 +1,5 @@
/*
** $Id: lapi.c,v 2.181 2013/06/04 19:34:51 roberto Exp roberto $
** $Id: lapi.c,v 2.182 2013/06/14 18:32:45 roberto Exp roberto $
** Lua API
** See Copyright Notice in lua.h
*/
@ -390,7 +390,7 @@ LUA_API lua_Unsigned lua_tounsignedx (lua_State *L, int idx, int *pisnum) {
const lua_Number twop = (~(lua_Unsigned)0) + cast_num(1);
lua_Number n = fltvalue(o);
int neg = 0;
n = l_mathop(floor)(n);
n = l_floor(n);
if (n < 0) {
neg = 1;
n = -n;

4
ltable.c
View File

@ -1,5 +1,5 @@
/*
** $Id: ltable.c,v 2.76 2013/05/27 12:43:37 roberto Exp roberto $
** $Id: ltable.c,v 2.77 2013/05/29 14:05:03 roberto Exp roberto $
** Lua tables (hash)
** See Copyright Notice in lua.h
*/
@ -70,7 +70,7 @@
/* checks whether a float has a value representable as a lua_Integer
(and does the conversion if so) */
#define numisinteger(x,i) \
(((x) == l_mathop(floor)(x)) && luaV_numtointeger(x, i))
(((x) == l_floor(x)) && luaV_numtointeger(x, i))
#define dummynode (&dummynode_)

7
luaconf.h
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@ -1,5 +1,5 @@
/*
** $Id: luaconf.h,v 1.181 2013/05/26 13:35:52 roberto Exp roberto $
** $Id: luaconf.h,v 1.182 2013/06/13 19:35:08 roberto Exp roberto $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
@ -423,6 +423,7 @@
#define LUA_NUMBER_FMT "%.7g"
#define l_mathop(op) op##f
#define l_floor(x) (floorf(x))
#define lua_str2number(s,p) strtof((s), (p))
@ -438,6 +439,7 @@
#define LUA_NUMBER_FMT "%.14g"
#define l_mathop(op) op
#define l_floor(x) (floor(x))
#define lua_str2number(s,p) strtod((s), (p))
@ -452,7 +454,6 @@
#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
/*
@@ The luai_num* macros define the primitive operations over numbers.
@* They should work for any size of floating numbers.
@ -461,7 +462,7 @@
/* the following operations need the math library */
#if defined(lobject_c) || defined(lvm_c)
#include <math.h>
#define luai_nummod(L,a,b) ((a) - l_mathop(floor)((a)/(b))*(b))
#define luai_nummod(L,a,b) ((a) - l_floor((a)/(b))*(b))
#define luai_numpow(L,a,b) (l_mathop(pow)(a,b))
#endif

4
lvm.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lvm.c,v 2.173 2013/06/07 19:02:05 roberto Exp roberto $
** $Id: lvm.c,v 2.174 2013/06/19 14:27:00 roberto Exp roberto $
** Lua virtual machine
** See Copyright Notice in lua.h
*/
@ -92,7 +92,7 @@ int luaV_tointeger_ (const TValue *obj, lua_Integer *p) {
lua_Number n;
lua_assert(!ttisinteger(obj));
if (tonumber(obj, &n)) {
n = l_mathop(floor)(n);
n = l_floor(n);
return luaV_numtointeger(n, p);
}
else return 0;