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src: fix warnings on SPrintF

PR-URL: https://github.com/nodejs/node/pull/32558
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
himself65 2020-03-30 11:25:39 +08:00 committed by Anna Henningsen
parent 056e68749c
commit d3af1fe9fe
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@ -30,16 +30,17 @@ struct ToStringHelper {
template <unsigned BASE_BITS,
typename T,
typename std::enable_if<std::is_integral<T>::value, int>::type = 0>
static std::string BaseConvert(T value) {
static std::string BaseConvert(const T& value) {
auto v = static_cast<uint64_t>(value);
char ret[3 * sizeof(T)];
char* ptr = ret + 3 * sizeof(T) - 1;
*ptr = '\0';
const char* digits = "0123456789abcdef";
do {
unsigned digit = value & ((1 << BASE_BITS) - 1);
unsigned digit = v & ((1 << BASE_BITS) - 1);
*--ptr =
(BASE_BITS < 4 ? static_cast<char>('0' + digit) : digits[digit]);
} while ((value >>= BASE_BITS) != 0);
} while ((v >>= BASE_BITS) != 0);
return ptr;
}
template <unsigned BASE_BITS,
@ -56,8 +57,8 @@ std::string ToString(const T& value) {
}
template <unsigned BASE_BITS, typename T>
std::string ToBaseString(T&& value) {
return ToStringHelper::BaseConvert<BASE_BITS>(std::forward<T>(value));
std::string ToBaseString(const T& value) {
return ToStringHelper::BaseConvert<BASE_BITS>(value);
}
inline std::string SPrintFImpl(const char* format) {