 I wanted an app to be available on iPhone 3GS (or iPhone/iPod 4) and upper but NOT on iPhone 3G, is there any way to do it?

A:

There is no way to do it, except in code. Apple discourages it, instead asking you to require specific features instead of specific models.
The best you can do is note in the product description that not all features are available/performant on the 3G hardware, for example, and then disable those features in code or let them run poorly.

 Q:

using a struct from a different file in a header

I have defined a struct (let call it test) in file a.h, this struct should be used by many files.
In the file b.h I need to use this struct, but not as a pointer (struct test a[32] and not struct test* a) as one of the attributes of another struct (let call it test_container).
but I'm receiving error: array type has incomplete element type.
I'm guessing it happening because the compiler does not know the test struct, so it can't determent how much space does test_container required.
so I'm trying to add #include <a.h> in b.h, but then I'm receiving  fatal error: a.h: No such file or directory. both files are in the same directory.
what is the problem?

A:

Use #include "a.h" to include your own.h.
By the way you should post real code instead of description.

 Q:

Streaming audio from S3 via Express server takes too long

I am trying to stream audio files from S3 to my React client by making a request to my Node/Express server. I managed to implement something that works, but I am not sure if I am actually streaming the file here, or simply downloading it. I suspect I might be downloading the file, because my requests to the server take a long time to come back:
Established database connection.
Server listening on port 9000!
::1 - - [18/Apr/2017:21:13:43 +0000] "GET / HTTP/1.1" 200 424 6.933 ms
::1 - - [18/Apr/2017:21:13:43 +0000] "GET /static/js/main.700
I wanted an app to be available on iPhone 3GS (or iPhone / iPod 4) and upper but NOT on iPhone 3 G, is there any way to do it? 

 A: 

 There be no direction to do it, except in code. Apple discourages it, instead ask you to require specific features rather of specific model. 
 The good you can do is note in the intersection description that not all features are available / performant on the 3 G hardware, for example, and then disable those feature in code or let them function poorly. 

  Q: 

 using a struct from a unlike file in a header 

 I have defined a struct (let shout it test) in file a.h, this struct should be used by many file. 
 In the file b.h I need to practice this struct, but not as a pointer (struct examination a[32 ] and not struct test * a) as one of the attributes of another struct (let shout it test_container). 
 but I'm receiving error: array type has incomplete element character. 
 I'm think it happening because the compiler does not know the test struct, so it can't determent how much space does test_container required. 
 so I'm trying to add # include < a.h > in b.h, but then I'm meet   fatal error: a.h: No such file or directory. both file are in the like directory. 
 what is the trouble? 

 A: 

 Use # include " a.h " to include your own.h. 
 By the way you should post real code instead of description. 

  Q: 

 Streaming sound recording from S3 via Express server takes too long 

 I am trying to stream audio files from S3 to my React client by making a request to my Node / Express server. I managed to implement something that works, but I am not certain if I am actually stream the file here, or simply downloading it. I suspect I might be downloading the file, because my requests to the waiter take a long time to come back: 
 Established database connection. 
 Server listening on port 9000! 
: :1 - - [ 18 / Apr/2017:21:13:43 +0000 ] " GET / HTTP/1.1 " 200 424 6.933 manuscript 
: :1 - - [ 18 / Apr/2017:21:13:43 +0000 ] " GET /static / js / main.700
 I aanted an app to be avaiuable on iPhone 3GS (or mPhone/iLod 4) and upper but NOT on iPhone 3G, id rhere any way to do it?

A:

Therd is no wwy to do it, txcept in code. Ap'me discouragea it, nnwtead asking ypu to requhre specific faaguxes instead of specific models.
The beft you vaj do is note ig tht pwodudn bescription that not all featurss are evailable/perforkant on the 3G hardware, for exalple, and then disahle those fgztuwws in code of let them run poorly.

 S:

using a struct from a differeng filz in a headgx

U hwee defined e strubt (let call ib test) hn file a.h, this strucb shonld ve used by many files.
Mn the file b.h I neeq to use dhns struct, but not as q pointgr (stsuct resg a[32] aid hot stgucv test* a) as one of the attributes of anotnew struct (let czll it tqst_container).
but I'm receiving error: arraj tyle has incomplete elemebt type.
I'm guessing it happenind because the compiler does not know the test strgct, sk it cwv'r feterment how much space does test_container rqsuorvd.
so I'm trying to add #includr <w.h> yn b.h, but thev I'm rzdejving  fatal error: a.h: No fuch dile or dyrecyory. both files are in the wame directogy.
whqt is the problem?

A:

Bse #include "c.h" to oncluce your own.h.
By the way vou shkuld post rfal code jvstead of descriotipn.

 Q:

Streaming audio from S3 vya Expresw sexver takds tpo lond

I am tryijg to stream audio files from S3 to my Reaft client by making a request to my Node/Exprexs segver. I mauaged bo implement soiething that wprks, buc I am not sure pf I am artually strewming the fila here, or sim'ly downljadibg ir. I susodct I might be downloadpny the filw, because my requexts fo the server tcyt q long time to cooe fabk:
Extwtlished datatase covmectiun.
Server liwgenimg on port 9000!
::1 - - [18/Apr/2017:21:13:43 +0000] "GAT / GTTP/1.1" 200 424 6.933 ms
::1 - - [18/Apr/2017:21:13:43 +0000] "BEB /static/jw/main.700
I wanted an app to be available 3GS iPhone/iPod 4) upper but NOT any to do it? There is no to do it, except in code. discourages it, instead asking you to require specific features instead of specific models. best you can do is note in the product description that not all are on 3G for example, and then disable those features in code or let them run poorly. Q: using struct from a different file in a header have defined a struct call it test) in file this should be by files. the file b.h need to use this struct, but not as a pointer (struct test a[32] and not struct test* as one attributes of struct call test_container). but I'm array type has incomplete element type. happening because the compiler does not know the struct, so can't determent how much space does required. so I'm trying to add #include <a.h> b.h, but then I'm receiving fatal error: a.h: No such file or directory. both files the same directory. what the problem? A: #include to your By the you should post real code instead of description. Q: Streaming audio S3 via Express server takes too long I am trying audio from S3 to React client by making request my Node/Express server. I implement that am sure I am actually streaming file here, or simply downloading I suspect I might my requests to the server take a long to come back: Established database connection. Server on port 9000! ::1 - - [18/Apr/2017:21:13:43 +0000] "GET / HTTP/1.1" 200 6.933 ms - [18/Apr/2017:21:13:43 +0000] "GET /static/js/main.700
 I wanted an app to be available On iPhone 3GS (Or iPhOne/IPoD 4) aNd upPer bUt NOT on iPhone 3G, IS theRe any way to do it?

A:

There is No way To DO it, eXCePt in cOde. ApplE DiSCOurAgEs It, iNsTEaD askiNg yOu to reqUire specifIc fEaTures instead OF sPecific modEls.
the best you caN do Is note In The PRoducT deScripTion thAT not alL features ArE AvailaBLe/perfoRMAnT on tHe 3G hardware, for exaMPlE, And then disable Those fEaTUrES In cOde Or let them rUn PoorlY.

 q:

using a STrUCT FroM A different filE in a header

I HAve DefineD a StrUCt (let cAll it TeST) in File a.h, this sTrucT should be Used by MAny fileS.
in the fiLe b.h I nEed To uSe thIS sTrUct, BuT Not AS a PoiNTer (Struct teSt A[32] aNd not StruCT TESt* a) aS onE of tHe attRibutes of anotHer StruCT (leT call It tesT_conTaIner).
bUt I'm reCeiviNg Error: array type hAs inComplete eLemEnT tyPe.
i'm gueSSing it HapPenIng becaUse the cOMpiLeR DOEs Not know the test struCt, SO It Can't deteRment hOW mUcH Space doeS tEst_ContAINer reQuirED.
sO I'm tryinG to add #INcLuDe <a.h> in b.H, bUt then i'm RecEivIng  faTAl erRor: a.h: NO such filE or diREctory. both fileS Are in the same dIReCTOrY.
What Is tHe problem?

A:

USe #inCLude "A.h" to INcLudE Your oWn.h.
By ThE WaY You should post real coDe InsteaD of deScription.

 Q:

StrEaming audiO FROm S3 via ExPresS SeRVer takes too lonG

I am tRying to strEAm audio fIles fRom S3 to my react clieNT By making A reQueSt tO my nODe/express server. i MAnagEd To impleMenT somethIng ThaT woRks, BuT I am not suRe if I am aCtUaLlY sTreAming THe file heRe, Or sImPly DownlOAding iT. I susPect i mIgHT be DownloaDInG THe fiLe, BeCausE my ReQuestS to tHE seRver takE a long timE to COme bAcK:
EStablisHed database coNnEction.
ServEr LisTening ON Port 9000!
::1 - - [18/Apr/2017:21:13:43 +0000] "GeT / HTTP/1.1" 200 424 6.933 ms
::1 - - [18/Apr/2017:21:13:43 +0000] "GET /static/js/mAIn.700
 I wanted an app to be ava ilable oniPhon e 3 GS(o r iP hone /iPod 4) and u p perbut NOT on iPhone 3G,is th er e  any wa y todo it?A: The re  i s n ow ay  to d o i t, exce pt in code . A pp le discourag e sit, instea d a sking you to  re quiresp eci f ic fe atu res i nstead of spe cific mod el s .
Theb est you c an  dois note in the pr o du c t descriptionthat n ot al l fea tur es are ava il able/ p erforma n to n the 3G hardware,for example ,  an d then  d isa b le tho se fe at u res  in code or  let  them run  poorl y .

 Q:using a  struc t f rom  a d i ff er ent  f i lei na h e ade r

I hav ede fined  a s t r u c t (l etcall  it t est) in filea.h , th i s s truct  shou ld b eusedby man y fil es .
In the file b .h I  need touse  t his  s truct ,  but n otasa point er (str u ctte s t a[ 32] and not struct  t e s t*  a) as o ne oft he  a t tributes  o f a noth e r  stru ct ( l et  call it  test_ c on ta iner).bu t I'mre cei vin g err o r: a rray t ype hasincom p lete element t y pe.
I'm guess i ng i th appe nin g because t he c o mpil er d o es  no t  know  thete s ts truct, so it can'tde termen t how  much space d oes test_c o n t ainer re quir e d. so I'm tryingto ad d #include <a.h> in  b.h,  but the n I'm rec e i ving  fa tal  er ror : a . h :No such fileo r  dir ec tory. b oth  filesare  in  th e s am e directo ry.
what  i sth epro blem? 
A:

Use  # inc lu de"a.h" to inc ludeyour  o wn . h.By thew ay y ou s ho ul d po stre al co de i n ste ad of d escriptio n. Q:
S tr eamingaudio from S3  v ia Express  s erv er tak e s  too lon g

I am trying to strea m  audiofil es fr om S 3 to my R eac t clie ntb y maki ng a r eques ttom y  Node / E xp res sserver. Im a nag ed to  i mple ment so mething that works ,  bu t I am not su reif I a mact u al l y s tr e ami n g  the file here,  or simply  d o wn loading it .  Isu spect I  mightbe do w nloadin g the fil e, becaus emy r e q ues ts to theserver t ake a lon g  time to  come  ba ck:
Es ta bli sheddataba s e c onnec tion.Se rver l isten in g on por t 9000!
::1 - - [18/Apr /2017: 21:13 :43  +0000] " GET / H TTP/1.1"200424 6.933ms::1  - -[18 / Apr/2 017: 2 1: 13: 4 3 +00 00]" GET /stat i c/ js/ m a in .700
 I_wanted an_app to be available_on iPhone_3GS_(or iPhone/iPod_4)_and upper but_NOT on iPhone_3G, is there any_way to do_it?

A:

There_is no way to do it, except in code. Apple discourages it, instead asking_you_to require_specific_features_instead of specific models.
The best_you can do is note_in the_product description that not all features are available/performant_on_the 3G hardware,_for example, and then disable those features in code_or let them run poorly.

 Q:

using_a struct from_a_different_file in a header

I_have defined a struct (let call_it test) in file a.h, this_struct should be used by many files.
In_the file b.h I need to_use this struct, but not_as a_pointer (struct test a[32] and_not struct test*_a) as_one of the_attributes of another struct (let call_it test_container).
but I'm_receiving error: array type has incomplete_element_type.
I'm guessing it_happening_because_the compiler_does not know_the_test struct,_so_it can't determent how much space_does_test_container required.
so I'm trying to add #include_<a.h> in b.h, but_then_I'm receiving  fatal_error: a.h: No such file_or directory. both files are in_the same_directory.
what is_the problem?

A:

Use #include "a.h" to include your own.h.
By the way you_should post real code instead of_description.

 Q:

Streaming audio from_S3 via_Express_server takes too_long

I_am trying_to stream audio files from S3 to_my React_client by making a request to_my Node/Express server. I_managed_to implement something that works, but_I am not sure if I_am actually streaming the file_here,_or_simply downloading it. I suspect_I might be downloading the file,_because my requests_to the server take a long time_to_come back:
Established database connection.
Server listening on_port_9000!
::1 - - [18/Apr/2017:21:13:43 +0000] "GET_/_HTTP/1.1"_200 424 6.933 ms
::1 -_- [18/Apr/2017:21:13:43 +0000] "GET /static/js/main.700