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Optimize and refactor printing of numbers to buffers.

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Mike Pall
2013-03-25 16:41:13 +01:00
parent 3b0b3afbb1
commit 59329cfbbf
5 changed files with 70 additions and 63 deletions
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14
src/lj_ctype.c
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@@ -568,19 +568,19 @@ GCstr *lj_ctype_repr_int64(lua_State *L, uint64_t n, int isunsigned)
/* Convert complex to string with 'i' or 'I' suffix. */
GCstr *lj_ctype_repr_complex(lua_State *L, void *sp, CTSize size)
{
char buf[2*LJ_STR_NUMBUF+2+1];
char buf[2*LJ_STR_NUMBUF+2+1], *p = buf;
TValue re, im;
MSize len;
if (size == 2*sizeof(double)) {
re.n = *(double *)sp; im.n = ((double *)sp)[1];
} else {
re.n = (double)*(float *)sp; im.n = (double)((float *)sp)[1];
}
len = lj_str_bufnum(buf, &re);
if (!(im.u32.hi & 0x80000000u) || im.n != im.n) buf[len++] = '+';
len += lj_str_bufnum(buf+len, &im);
buf[len] = buf[len-1] >= 'a' ? 'I' : 'i';
return lj_str_new(L, buf, len+1);
p = lj_str_bufnum(p, &re);
if (!(im.u32.hi & 0x80000000u) || im.n != im.n) *p++ = '+';
p = lj_str_bufnum(p, &im);
*p = *(p-1) >= 'a' ? 'I' : 'i';
p++;
return lj_str_new(L, buf, p-buf);
}
/* -- C type state -------------------------------------------------------- */