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insertion of ".0" in floats with integer values done by "luaL_tolstring",

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not by the core
This commit is contained in:
Roberto Ierusalimschy
2014-02-05 17:14:53 -02:00
parent 1721d09ac8
commit d438e1379d
2 changed files with 15 additions and 17 deletions
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16
lauxlib.c
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@@ -1,5 +1,5 @@
/*
** $Id: lauxlib.c,v 1.255 2013/06/27 18:32:33 roberto Exp roberto $
** $Id: lauxlib.c,v 1.256 2014/01/05 14:04:46 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@@ -746,10 +746,16 @@ LUALIB_API lua_Integer luaL_len (lua_State *L, int idx) {
LUALIB_API const char *luaL_tolstring (lua_State *L, int idx, size_t *len) {
if (!luaL_callmeta(L, idx, "__tostring")) { /* no metafield? */
switch (lua_type(L, idx)) {
case LUA_TNUMBER: { /* concatenate with empty string to convert */
lua_pushvalue(L, idx);
lua_pushliteral(L, "");
lua_concat(L, 2);
case LUA_TNUMBER: {
if (lua_isinteger(L, idx))
lua_pushfstring(L, "%I", lua_tointeger(L, idx));
else {
const char *s = lua_pushfstring(L, "%f", lua_tonumber(L, idx));
if (s[strspn(s, "-0123456789")] == '\0') { /* looks like an int? */
lua_pushliteral(L, ".0"); /* add a '.0' to result */
lua_concat(L, 2);
}
}
break;
}
case LUA_TSTRING: