gh-mirror/mikepaul-LuaJIT
1
0
Fork 0
mirror of https://github.com/LuaJIT/LuaJIT.git synced 2025-02-07 23:24:09 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Give expected results for negative non-base-10 numbers in tonumber().

Browse Source 
This was undefined in Lua 5.1, but it's defined in 5.2.
This commit is contained in:
Mike Pall 2018-04-22 13:14:28 +02:00
parent fe651bf6e2
commit f3cf0d6e15
1 changed files with 18 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/lib_base.c
View File

@ -287,21 +287,30 @@ LJLIB_ASM(tonumber) LJLIB_REC(.)
} else {
const char *p = strdata(lj_lib_checkstr(L, 1));
char *ep;
unsigned int neg = 0;
unsigned long ul;
if (base < 2 || base > 36)
lj_err_arg(L, 2, LJ_ERR_BASERNG);
while (lj_char_isspace((unsigned char)(*p))) p++;
if (*p == '-') { p++; neg = 1; } else if (*p == '+') { p++; }
if (lj_char_isalnum((unsigned char)(*p))) {
ul = strtoul(p, &ep, base);
if (p != ep) {
while (lj_char_isspace((unsigned char)(*ep))) ep++;
if (*ep == '\0') {
if (LJ_DUALNUM && LJ_LIKELY(ul < 0x80000000u))
if (LJ_DUALNUM && LJ_LIKELY(ul < 0x80000000u+neg)) {
if (neg) ul = -ul;
setintV(L->base-1-LJ_FR2, (int32_t)ul);
else
setnumV(L->base-1-LJ_FR2, (lua_Number)ul);
} else {
lua_Number n = (lua_Number)ul;
if (neg) n = -n;
setnumV(L->base-1-LJ_FR2, n);
}
return FFH_RES(1);
}
}
}
}
setnilV(L->base-1-LJ_FR2);
return FFH_RES(1);
}