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shared smallut: new ulltodecstr

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This commit is contained in:
Jean-Francois Dockes 2020-01-23 08:33:29 +01:00
parent f85bd24078
commit 552510db06
1 changed files with 15 additions and 27 deletions
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42
src/utils/smallut.cpp
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@ -711,25 +711,6 @@ bool pcSubst(const string& in, string& out, const map<string, string>& subs)
}
return true;
}
inline static int ulltorbuf(uint64_t val, char *rbuf)
{
int idx;
for (idx = 0; val; idx++) {
rbuf[idx] = '0' + val % 10;
val /= 10;
}
while (val);
rbuf[idx] = 0;
return idx;
}
inline static void ullcopyreverse(const char *rbuf, string& buf, int idx)
{
buf.reserve(idx + 1);
for (int i = idx - 1; i >= 0; i--) {
buf.push_back(rbuf[i]);
}
}
void ulltodecstr(uint64_t val, string& buf)
{
@ -740,9 +721,14 @@ void ulltodecstr(uint64_t val, string& buf)
}
char rbuf[30];
int idx = ulltorbuf(val, rbuf);
int idx=29;
rbuf[idx--] = 0;
do {
rbuf[idx--] = '0' + val % 10;
val /= 10;
} while (val);
ullcopyreverse(rbuf, buf, idx);
buf.assign(&rbuf[idx+1]);
return;
}
@ -760,14 +746,16 @@ void lltodecstr(int64_t val, string& buf)
}
char rbuf[30];
int idx = ulltorbuf(val, rbuf);
int idx=29;
rbuf[idx--] = 0;
do {
rbuf[idx--] = '0' + val % 10;
val /= 10;
} while (val);
if (neg) {
rbuf[idx++] = '-';
rbuf[idx--] = '-';
}
rbuf[idx] = 0;
ullcopyreverse(rbuf, buf, idx);
buf.assign(&rbuf[idx+1]);
return;
}