Function RM_SaveLongDouble

app/redis-6.2.6/src/module.c:4856–4863

In the context of the rdb_save method of a module data type, saves a long double * value to the RDB file. The double can be a valid number, a NaN or infinity. * It is possible to load back the value with RedisModule_LoadLongDouble(). */

 * value to the RDB file. The double can be a valid number, a NaN or infinity.
 * It is possible to load back the value with RedisModule_LoadLongDouble(). */
void RM_SaveLongDouble(RedisModuleIO *io, long double value) {
    if (io->error) return;
    char buf[MAX_LONG_DOUBLE_CHARS];
    /* Long double has different number of bits in different platforms, so we
     * save it as a string type. */
    size_t len = ld2string(buf,sizeof(buf),value,LD_STR_HEX);
    RM_SaveStringBuffer(io,buf,len);
}

/* In the context of the rdb_save method of a module data type, loads back the
 * long double value saved by RedisModule_SaveLongDouble(). */