- char expiration_buffer[MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1];
- int expiration_buffer_length = snprintf(expiration_buffer, sizeof(expiration_buffer), " %llu",
- (unsigned long long) expiration);
+ char expiration_buffer[MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1 + 1];
+ int expiration_buffer_length = snprintf(expiration_buffer, sizeof(expiration_buffer), " %lld",
+ (long long) expiration);