Thread: while loop error. string errors. converting between single chars in c++

Hi,

I'm getting a couple errors in c++;

What I'm trying to do is covert some character to another character.
for file output.

the while loop is messing up pretty bad Microsoft is throwin some random
characters in there instead of using the right ones..

I was trying to use getline to get strings and just edit the strings.
but app is erroring out and everything.
I can use file.get(cstr); and I have to get 1 char at a time.
but it wont let me change characters in a string in a while loop.

dev c++. has some probs. I'm using vs2017 community.
atoi not working so its hard to covert between characters.
strcpy not working. looks like they threw out some old stuff.

string has a problem getting single characters off the string.
but I can still convert char to string which is ok. and using int to string.
this is just basic c++ stuff and they threw us out of it just for some while loop and string exploit probably.

anyway what I got going on is.. I'm using get to get single character from a file and converting them. but because of while loop I can only convert 1 char in the entire prog. unless I want I want to write out the binary table again and again. but I can convert int to string np..

any ideas on how to get some more accurate results in changing single string character. or way to fix while loop.
ive heard before using String sometimes helps with the new stuff.
but I don't know how to single string char in and out of there from string.

what I'm working on is something other than ascii. but even though
it is what it uses to record char if I could see my binary it would be
easier to work on it.
like I said I got it working I just returns 1char per running of the file without a while loop. I found something in binary. everybody knows
like ascii is 256bit. but they are just recording ascii in that amount.
its really 1 or 0 a time eight bit. so its half of 256 is what a real program uses 128. which is considerd encrypted. or is what it is in
8bit encryption including the 0 in other words as part of a bit in enc.

any help with String or anything I might be able to convert single characters to in a while loop. or another solution is appreaciated.

strcpy isn't working either. what a fog of of c++. I don't like it.

-lgm

i can show you this binary project. ascii uses 256 bit binaries to = a character. but i strongly believe programs in 256bit should probably not be written.
the binary clearly states 1 or 0 in ints. but the char is of. its probably why our computer are so buggy. you can still use 256bit char but should realize that
in 8bit a program runs in 128 with the zero and the 1. i know they got the old stuff. in 16bit. that's 256. but the char is still off in even 128. we would have much better programs.

anyway heres the binary proj I'm working on. its not the same old pre windows asci. binary but. its the binary that runs not the char or int. i believe... anyway.

the reason why i made this proj is because i can see what real code looks like in 8bit. to decide what to do in the machine code. whether its in windows or running on hardware.
but why would you use pre windows binary anyway i guess they haven decided to do it. but i know Microsoft has their own version ansi and stuff like that. but why doesn't anybody.
have or explain tru 32 bit code in 128.

Lemi get some binary. looks ok 128 bit.
Values
00110000 0 01000110 70
00110001 1 01000111 71
00110010 2 01001000 72
00110011 3 01001001 73
00110100 4 01001010 74
00110101 5 01001011 75
00110110 6 01001100 76
00110111 7 01001101 77
00111000 8 01001110 78
00111001 9 01001111 79
Letters
01000001 A 00100010 34
01000010 B 00100011 35
01000011 C 00100100 36
01000100 D 00100101 37
01000101 E 00100110 38
01000110 F 00100111 39
01000111 G 00101000 40
01001000 H 00101001 41
01001001 I 00101010 42
01001010 J 00101011 43
01001011 K 00101100 44
01001100 L 00101101 45
01001101 M 00101110 46
01001110 N 00101111 47
01001111 O 00110000 48
01010000 P 00110001 49
01010001 Q 00110010 50
01010010 R 00110011 51
01010011 S 00110100 52
01010100 T 00110101 53
01010101 U 00110110 54
01010110 V 00110111 55
01010111 W 00111000 56
01011000 X 00111001 57
01011001 Y 00111010 58
01011010 Z 00111011 59
Variable
01100001 a 01010010 82
01100010 b 01010011 83
01100011 c 01010100 84
01100100 d 01010101 85
01100101 e 01010110 86
01100110 f 01010111 87
01100111 g 01011000 88
01101000 h 01011001 89
01101001 i 01011010 90
01101010 j 01011011 91
01101011 k 01011100 92
01101100 l 01011101 93
01101101 m 01011110 94
01101110 n 01011111 95
01101111 o 01100000 96
01110000 p 01100001 97
01110001 q 01100010 98
01110010 r 01100011 99
01110011 s 01100100 100
01110100 t 01100101 101
01110101 u 01100110 102
01110110 v 01100111 103
01110111 w 01101000 104
01111000 x 01101001 105
01111001 y 01101010 106
01111010 z 01101011 107
128bit. 8bit binary is 128bit its 8bits either 1 or 0. that 2x 128bit. thats how its supposed to work. this binary is compatable with exe.
to convert a binary to int. its easy.
128 64 32 16 8 4 2 1
0 1 0 1 0 0 0 1 81
if its a 1 you add the numbers across. so this number is 81. ya can check it online.. you can use it to get a system of number going...

Originally Posted by john.c

I have no idea what you are babbling about.
Maybe someone else can help you.

its just a project I'm working on.
i tried that method you wrote. int in.find(ch);
the int is still coming out incorrect in a while loop.
i tried a couple methods. it might work out a while loop.

has anyone tried enum before or know how i could use it with string to get a diff character. a cin will work to another char. but its single chars.

thanks anyway. i really hope it can be fixed some way.

Please show a small example of your input file, and show the output you expect with that input.

Next do you know the difference between the following "A", 'A', and 65?

the while loop is messing up pretty bad Microsoft is throwin some random
characters in there instead of using the right ones..

Microsoft has nothing to do about your problems. It appears to be that you're misunderstanding how characters, strings and numbers work.

I was trying to use getline to get strings and just edit the strings.
but app is erroring out and everything.

So what did these errors say? Since you're not really using any strings in the program I won't even guess as to what you're doing wrong.

I can use file.get(cstr); and I have to get 1 char at a time.
but it wont let me change characters in a string in a while loop.

What? If you're doing things right you can change characters within a string, as long as the string is not a const.

dev c++. has some probs.

Again what does this mean? The problems are probably because you downloaded an old version or failed to properly configure the compiler.

I'm using vs2017 community.
atoi not working so its hard to covert between characters.
strcpy not working. looks like they threw out some old stuff.

Do you realize that atoi() expects a C-string as a parameter?

Well this is a known problem with the Microsoft compiler, it is not following the standard in regard to C string functions. However if you read the error message when you try to use a C string function the error message tells you how to solve the problem by #defining a macro to avoid the error. But since you're using std::string you really have no need for a C-string, just stick with the string.

string has a problem getting single characters off the string.
but I can still convert char to string which is ok. and using int to string.

This is nonsense. The problem is that you don't appear to know the difference between a string, a char, and an int.

anyway what I got going on is.. I'm using get to get single character from a file and converting them. but because of while loop I can only convert 1 char in the entire prog. unless I want I want to write out the binary table again and again. but I can convert int to string np..

Again this appears to be a lack of understanding how strings, char, and numbers relate.

like I said I got it working I just returns 1char per running of the file without a while loop. I found something in binary. everybody knows
like ascii is 256bit. but they are just recording ascii in that amount.

Ah, so here is one of your misconceptions, ASCII is a 7 bit protocol and can only hold values between 0 and 127, anything else is not ASCII.

It also points to another issue, on your system a char is signed meaning it can only hold a value in the range of -128 to +127, trying to use a value outside of this range produces undefined behaviour. So on your system if you try to add 10 to 'z' you are invoking undefined behaviour.

Again post a small sample of your input file, and the expected output. It would also help if you explained the assignment requirements and objectives.

I see what your saying in most of that. but that's assuming c++ is working perfectly. it really seems like it hacked up on string char and while loop. getline is working it gets line. but impossible to get to a single char at a time. I don't have an imput file prepared. all I got is a little text file I was trying to run something with. the other guy got what I was doing. but it seems Microsoft is encrypting their output and outputting what they want. it isn't usefull usually a harmfull out. some kind of error encryption rather than what I specifiy in the while.

I got this 3 char. for wring most of the function 3 time to get the output for you.

ABC="#$

I think the while data output is bad and conversion mess up. you can just cout a copy char. its fine. but id have a perfect output file. I think it has been that way for a long time.
one time I tried to work on binary and it hacked every bine I put it.

I don't have any code setup right now. I was trying to get the conversions done to see the code better. all I got is some 8bit encryption.

Code:

dUkeNoBie CloRiteNBug FloRitEn HugeNetSin Berdino CloriDe PulTiseN CloridE
HinDerLand VogIsen CloriDe BlaiRsen ForMula DeginTle FlyIng BogIsen
DriloNet Sirbende SarIten FlorideNet SerBine Cloride Shoriten FLorIda
NeTsiN BerlingDerbin Surlington FLoriDa DurBin Sharington CloRideNo SurLing
LibOrian FusiLBine Janisen FLorIslE Nerbin Shurlington BehSingTen ClarIten
ShoeNighT SerinGtoN BetingShurLeng ForMinTerBin SherLingtoN JenSing BirlengtOn Genises
GinDerVoid ShoRlengTen FloRida Henise Cjberling ForMuLa RubinSon ShurliNe
NetSirBen Fushington ForMula DeriSen BirlenGton CutiFord SneLington ForMise
BinEsin Turbine SurlengTon VehiSenFloRn FlorIda FushiNgtOn JanIsen HosTible
ChaNel FuShingTon DopaMine JerIsentan FloRida DumPlinTen FusHion TerPinTen
FerImule GuliNgton FerIsen ToneBing FloriDian RuniSword BerlingTon ForMula
TarPinTen GusTlenet SulTinBin DerbinTen CulTspRite VusinTen DerbInDenny HosTdine
NtSeniForD FusHion ButterNic HostTimblerLand JumbLe DurBinGton SurLeng ForMula
RuniShFord BerLingtoN FloriDa RebilNEt SurlengTon Burleng ChanNel IseNtBurn
FoggiLe HustleNet ChaNelinG KurLingTon DubOniC FanHiseR CurLinGton DurbiNe
CuLeHapeNs JaniSen ForTine SurlenGton BurNisAle JuniSforD DanceLiTle SulIngTon
EminSling FloriDa NetSheDule ShuTe ChaNce FusHiontin BlaIrJune DraInesing
FraMeJing FasHioN SprIngs ForMula DuniNgPort FurLingTon FusIonPort FranCe
ShaeJunisFord HanSil BerLinDense ShoeLingDim HosTile FurNish FloRida BerDinrbg
Hubble TaniSen FloRida JaneSpeAr DurLingTon FusHion BerlinGton SpringsJena
Number HanDle FortPortEen ShineLeerman Dubermin ChloRoPost HeriSen Derbine

I don't expect it to work well. its not even on the electric. just some 32 bit enc with a system.
like I said I don't have actual code yet since I'm not sure of what to do with it yet.

I'm looking into just using ascii and some round 128bit on the electric. but I'm still not sure on how to convert code to a hardware program or anything.. must be a way with bin and ints.

as far as the while not working. I bet someone at Microsoft would know a way to enable it.. I might there later.

Originally Posted by lgmbin

as far as the while not working. I bet someone at Microsoft would know a way to enable it.. I might there later.

You might want to use a "while" loop if you want it to work. None of the code you posted has any while loops in it.

If you want help with your code you will need to post a Short, Self Contained, Compilable Example of code that you need help with. You also need to tell us the exact output you expect your program to produce, given that input. Otherwise, we can't help you much more than we already have.

I'm starting to believe that lgmbin is either extremely clueless or a troll.

lgmbin: do you want us to help you with anything? You keep throwing around numbers that don't have any context about what they mean or where they come from.

If you want help with your encryption (or whatever you're trying to do--it's not clear to me), you'll need to give us:

• Example input
• Expected output
• How you derive the output from the input

I'm sure all of us here are quite familiar with binary and ASCII, so you don't need to explain all of that to us.

If you don't want help but would rather continue your confused ramblings, I'll see myself out of this thread.

PS. There are 24 hours in a day, not 12. But what does that have to do with an encryption or encoding scheme anyway?