//从对象中将字符串值转换为long double并存储在target中，若失败，失败发送信息给client
int getLongDoubleFromObjectOrReply(client *c, robj *o, long double *target, const char *msg) {
long double value;
if (getLongDoubleFromObject(o, &value) != C_OK) { //如果出错
if (msg != NULL) { //msg不为空
addReplyError(c,(char*)msg); //发送指定的msg给client
} else {
addReplyError(c,"value is not a valid float"); //发送普通字符串
}
return C_ERR;
}
*target = value; //将转换成功的值存到传入参数中，返回0成功
return C_OK;
}
int getLongDoubleFromObjectOrReply(client *c, robj *o, long double *target, const char *msg) {
long double value;
if (getLongDoubleFromObject(o, &value) != C_OK) {
if (msg != NULL) {
addReplyError(c,(char*)msg);
} else {
addReplyError(c,"value is not a valid float");
}
return C_ERR;
}
*target = value;
return C_OK;
}
int getLongDoubleFromObjectOrReply(rr_client_t *c, robj *o, long double *target, const char *msg) {
long double value;
if (getLongDoubleFromObject(o, &value) != RR_OK) {
if (msg != NULL) {
reply_add_err(c,(char*)msg);
} else {
reply_add_err(c,"value is not a valid float");
}
return RR_ERROR;
}
*target = value;
return RR_OK;
}