emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

bc: simplify bc_num_parseDecimal() further

Browse Source 
function                                             old     new   delta
bc_program_num                                       925     912     -13

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-12-10 15:38:52 +01:00
parent 5ba55f1f35
commit dafbc2cdb8
1 changed files with 12 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
miscutils/bc.c
View File

@ -2395,19 +2395,11 @@ static void bc_num_parseDecimal(BcNum *n, const char *val)
{
size_t len, i;
const char *ptr;
bool zero;
len = strlen(val);
if (len == 0)
return;
zero = true;
for (i = 0; val[i]; ++i) {
if (val[i] != '0' && val[i] != '.') {
zero = false;
break;
}
}
bc_num_expand(n, len);
ptr = strchr(val, '.');
@ -2416,16 +2408,21 @@ static void bc_num_parseDecimal(BcNum *n, const char *val)
if (ptr != NULL)
n->rdx = (size_t)((val + len) - (ptr + 1));
if (!zero) {
i = len - 1;
for (;;) {
n->num[n->len] = val[i] - '0';
++n->len;
for (i = 0; val[i]; ++i) {
if (val[i] != '0' && val[i] != '.') {
// Not entirely zero value - convert it, and exit
i = len - 1;
for (;;) {
n->num[n->len] = val[i] - '0';
++n->len;
skip_dot:
if ((ssize_t)--i == (ssize_t)-1) break;
if (val[i] == '.') goto skip_dot;
if ((ssize_t)--i == (ssize_t)-1) break;
if (val[i] == '.') goto skip_dot;
}
break;
}
}
// if this is reached, the value is entirely zero
}
// Note: n is already "bc_num_zero()"ed,