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new macro to control format for `read"*n"'

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This commit is contained in:
Roberto Ierusalimschy 2001-06-28 11:45:44 -03:00
parent 37f3a1c045
commit 61a036eaa5
2 changed files with 12 additions and 6 deletions
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4
liolib.c
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@ -1,5 +1,5 @@
/*
** $Id: liolib.c,v 1.115 2001/06/08 16:48:32 roberto Exp roberto $
** $Id: liolib.c,v 1.116 2001/06/22 13:49:42 roberto Exp roberto $
** Standard I/O (and system) library
** See Copyright Notice in lua.h
*/
@ -263,7 +263,7 @@ static int read_until (lua_State *L, FILE *f, const l_char *p, int pl) {
static int read_number (lua_State *L, FILE *f) {
double d;
if (fscanf(f, l_s("%lf"), &d) == 1) {
if (fscanf(f, l_s(LUA_SCAN_NUMBER), &d) == 1) {
lua_pushnumber(L, d);
return 1;
}

14
lua.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lua.h,v 1.97 2001/04/23 16:35:45 roberto Exp roberto $
** $Id: lua.h,v 1.98 2001/06/06 18:00:19 roberto Exp roberto $
** Lua - An Extensible Extension Language
** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
** e-mail: info@lua.org
@ -292,10 +292,16 @@ LUA_API void lua_pushusertag (lua_State *L, void *u, int tag);
#define l_charint int
#endif
/* function to convert a lua_Number to a string */
#ifndef LUA_NUMBER_FMT
#define LUA_NUMBER_FMT "%.16g"
/*
** formats for Lua numbers
*/
#ifndef LUA_SCAN_NUMBER
#define LUA_SCAN_NUMBER "%lf"
#endif
#ifndef LUA_NUMBER_FMT
#define LUA_NUMBER_FMT "%.16g"
#endif
/* function to convert a lua_Number to a string */
#ifndef lua_number2str
#define lua_number2str(s,n) sprintf((s), l_s(LUA_NUMBER_FMT), (n))
#endif