Data types and tokens .cpp

Code:

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// clapp strings.cpp : main project file.  #include "stdafx.h" #include <stdio.h> #include <stdlib.h> #include <string.h>  using namespace System;  int main(array<System::String ^> ^args) {    char SingleChar;    char mySentence[30] = "My name is Jeff"; /*can initialize a string when declared*/      char yetAnotherSentence[3] = "OR";    int intArr[30]; /* for perspective, will dwell on arrays later in class */          int lenOfMySent;      SingleChar = 'K';      printf("The text in mySentence is [%s]\n", mySentence);      mySentence[11] = 'S'; /* pick one slot in mySentence which is an array and modify */    mySentence[9] = 'S'; /* pick one slot in mySentence which is an array and modify */    printf("The text in mySentence after updating one alphabet is [%s]\n", mySentence);    printf("printing mySentence from 7'th slot onwards [%s]\n", mySentence + 7);      printf("scanf is a fragile way of reading a string \n \            1. One it doesn't read a sentence, will stop at the first space\n \            2. Will not check whether you've crossed the limit/ size for the string variable\n \            ");    printf("\nEnter a word(no space and <=29 in size)\n\tto read into mySentence using scanf :");    scanf("%s", mySentence); /*Look Ma, no & (in front of mySentence)*/    printf("The text in mySentence is with value from user is [%s]\n", mySentence);    scanf("%*c"); /*gobble up all extra space to get ready to read the next string*/    printf("\nEnter a sentence(<=29 in size)\n to read into mySentence using fgets :");    fgets(mySentence,29,stdin);    printf("The text in mySentence is with value from user with the newline is \n[%s]\n", mySentence);            lenOfMySent = strlen(mySentence); /* using the strlen in string.h library to get the length of the mySentence                                      includes the newline that the user entered to indicate done entering the string                                      but does not include the string delimitor                                      */      mySentence[lenOfMySent - 1] = '\0'; /*manually get rid of the newline that the user entered to indicate done entering the string*/    printf("The text in mySentence now that we've taken away the end newline is\n [%s]\n", mySentence);    printf("The length of mySentence now that we've taken away the end newline is [%d]\n", lenOfMySent);    printf("The sizeof of mySentence (the array) is [%d]\n", sizeof(mySentence));      printf("The sizeof of intArr (the array) is [%d]\n", sizeof(intArr));        system("pause");    return 0;  }

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If any one has a moment to coment on the use of .cpp tokens
I would like to here from you
in addition why is has the code between the brackets failed to word wrap vs continuous line?

Quote:

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in addition why is has the code between the brackets failed to word wrap vs continuous line?

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You did not paste plain text. This is pretty obvious with all of the failed HTML like special characters and other weird accidents like =29

Code:

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// clapp strings.cpp : main project file. #include "stdafx.h" #include <
stdio.h>
#include <
stdlib.h>
#include <
string.h>
using namespace System;
int main(array<
System::String ^>
^args) {
    char SingleChar;
    char mySentence[30] = "My name is Jeff";
    /*can initialize a string when declared*/  char yetAnotherSentence[3] = "OR";
    int intArr[30];
    /* for perspective, will dwell on arrays later in class */  int lenOfMySent;
    SingleChar = 'K';
    printf("The text in mySentence is [%s]\n", mySentence);
    mySentence[11] = 'S';
    /* pick one slot in mySentence which is an array and modify */ mySentence[9] = 'S';
    /* pick one slot in mySentence which is an array and modify */ printf("The text in mySentence after updating one alphabet is [%s]\n", mySentence);
    printf("printing mySentence from 7'th slot onwards [%s]\n", mySentence + 7);
    printf("scanf is a fragile way of reading a string \n \ 1. One it doesn't read a sentence, will stop at the first space\n \ 2. Will not check whether you've crossed the limit/ size for the string variable\n \ ");
    printf("\nEnter a word(no space and <
    =29 in size)\n\tto read into mySentence using scanf :");
    scanf("%s", mySentence);
    /*Look Ma, no & (in front of mySentence)*/ printf("The text in mySentence is with value from user is [%s]\n", mySentence);
    scanf("%*c");
    /*gobble up all extra space to get ready to read the next string*/ printf("\nEnter a sentence(<
    =29 in size)\n to read into mySentence using fgets :");
    fgets(mySentence,29,stdin);
    printf("The text in mySentence is with value from user with the newline is \n[%s]\n", mySentence);
    lenOfMySent = strlen(mySentence);
    /* using the strlen in string.h library to get the length of the mySentence includes the newline that the user entered to indicate done entering the string but does not include the string delimitor */  mySentence[lenOfMySent - 1] = '\0';
    /*manually get rid of the newline that the user entered to indicate done entering the string*/ printf("The text in mySentence now that we've taken away the end newline is\n [%s]\n", mySentence);
    printf("The length of mySentence now that we've taken away the end newline is [%d]\n", lenOfMySent);
    printf("The sizeof of mySentence (the array) is [%d]\n", sizeof(mySentence));
    printf("The sizeof of intArr (the array) is [%d]\n", sizeof(intArr));
    system("pause");
    return 0;
   
}

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I guess it's better than nothing.

What specifically do you want to know? "C++ tokens" are practically every bit of syntax.

This looks like a mix of C++/CLI and C.
Pick a language first: C++/CLI, C++ or C.

I would like to narow it down to c++
im not sure why it would be a mix i got the code from my instructor for c programming
Ive compiled and executed the code using c++
how would it be possible to use multiple languages in one script with out first declaring the switch?
i have been instructed to select a compiler such as c++ to do the assignments
she said there would be a program that will grade the assignments and maybe she wrote
a special program for that
where do you see the c source code
I have never heard of cli do you mean clr console app?

I just read the code that White flags posted and yes i see
where code has been added that may be what you are talking about such as stdio.h>

All char, scanf, printf and fgets look like C to me.
C++/CLI - Wikipedia, the free encyclopedia
For reference, select a Win32 Console Project, not anything else when you create your project.

And if you get code from your C instructor, then why do you bother with C++?
If you want to learn C++, go a C++ course, not a C course.

Quote:

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how would it be possible to use multiple languages in one script with out first declaring the switch?

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C++/CLI is a Microsoft technology. C++ with other features. It would be possible for an instructor to use CLI in a program without telling the students about it because Microsoft compilers support CLI seamlessly. Your instructor probably doesn't know the difference between this and C++, if this is the first time you've heard of C++/CLI.

Quote:

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Originally Posted by Elysia

And if you get code from your C instructor, then why do you bother with C++?
If you want to learn C++, go a C++ course, not a C course.

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If he wants to learn C++, he should go to a school outside of India or at least buddy up with the other Indians on this board. They seem to know where to go to learn and have their facts straight.

well when i signed up for the class i was unaware of all the differences
I had a copy of microsoft visual studio 2010 but the trial version has expired
correct me if i am wrong but i believe microsoft visual studio 2010 edits .c scourse
Im going to renew the version Microsoft visual studio 2010 here in just a second
if that's the case i will switch languages

You are better off with Code::Blocks or a similar IDE that uses the GCC compiler if you're going to write C, than Visual Studio.

ok i will select win 32 and see if that corrects the mix

ill check out code blocks for a free down load
thanks

Quote:

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Originally Posted by AutoIt Addict

well when i signed up for the class i was unaware of all the differences
I had a copy of microsoft visual studio 2010 but the trial version has expired
correct me if i am wrong but i believe microsoft visual studio 2010 edits .c scourse
Im going to renew the version Microsoft visual studio 2010 here in just a second
if that's the case i will switch languages

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C++ is a superset of C. That is, standard C++ supports C features. Some of these features, like functions, are essential to programming as a whole. Other features of C++ can be ignored in a poorly structured C++ course. Look ahead in your course syllabus and see if classes and the STL are covered at all. In a poorly structured course, you will learn how to write C++ using C features and stuff like classes and the STL will not be taught at all.

If you are in that situation there is no real point in staying in the course since the knowledge you will obtain is far from useful in the working world. Learn another language ...or something. Changing your tools will not help you improve the level of knowledge that you will receive.

code blocks looks pretty neat Im going to play with it for a bit and get back to you
before i get started what kind of app would i select to confirm im writing in c

thank you much white flags
i think you may be right
still going to check out code blocks it seem cool for now

I'm confused. In your other thread, you said you had finite time to create a program that did certain things, and provided two very different programs in two separate posts, as if using them for reference. Now, you're saying that this was given to you by a "c programming" instructor, and you're trying to "correct" (read: modify) it to make it work.

I hope you're not wasting our time asking us to help you modify code you found on the net to submit as an assignment without bothering to learn anything. That wouldn't be nice.

Matticus

yes the code was given to me by the instructor and if you would kindly read what white flags has wrote this may clear
up some of your confusion
I have no plans to copy internet code as that would not work anyway
the assignment is fairly simple program if you have a basic understanding of strings arrays tokens int and variables
as for now i plan to see if i can learn to use c source in code blocks
then i will try to clean up the messy code that seems to be a mix of c and C++
however if the instructor gives me example code that has c and c++ there is not much i can say about that other than
take white flags advise above

The code is clearly C with C++/CLI added in. C++/CLI is not C++.

Matticus

looks like where in business code blocks allows you to write in c

Code:

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#include <stdio.h>
#include <stdlib.h>

int main()
{
    printf("Hello world!\n");
    return 0;
}

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this file has a .c extension do you see any c++ code here?

That is pure C. Are you still interested in programming the assignment you described in the other thread? If so, do you know how create a string in C?

yes i am interested
dont yet know how to create a sting in c

Code:

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#include <stdio.h>
#include <stdlib.h>

int main()
{
    printf("Hello world!\n");
    return 0;
}

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Well.. no better time to start learning !
C Tutorial - Learn C - Cprogramming.com

Do you know how to create an array of variables?

A string is simply an array of characters, terminated with a null character '\0'.

For instance, this code will declare a character array with 6 elements:

Code:

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char cArray[6];

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Each element can contain a character, and are indexed from zero to "n-1"

Code:

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cArray[0] = 'H';  // <--- note a single character is contained within single quotes
cArray[1] = 'e';
cArray[2] = 'l';
cArray[3] = 'l';
cArray[4] = 'o';
cArray[5] = '\0';

// There are six elements in this array, numbered 0 - 5.
// Some new to this mistakenly try to access "cArray[6]" - ** this is out of bounds! **

---

There are other ways to define a string. For instance, we could have done this:

Code:

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char cArray[6] = "Hello";  // <--- note string of characters is contained within double quotes

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Note that "Hello" only has five characters, but our array has six elements. This is because we need to leave space at the end of the string for the null character (which is appended automatically when a string is declared like this).

Play around with this for a little bit until you feel comfortable, then we can go over the next step.

[edit] Perhaps I should include some printing techniques:

Code:

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// printing one character at a time

for(i=0; i<6; i++)
    printf("%c",cArray[i]);  // <--- %c prints a single character

---

Code:

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// print entire string at once

printf("%s",cArray);  // <--- %s prints a null-character-terminated string
// note that just the array name is given without any brackets/indices

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ok give me some time to play with this and i will get back to you in hour or so

thanks

-k-
got it now
a string is a collection of characters otherwise defined as array

its printing single char

Code:

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#include <stdio.h>
#include <stdlib.h>

int main()
{

char cArray[16];

cArray[0] = 'f';  // <--- note a single character is contained within single quotes
cArray[1] = 'i';
cArray[2] = 'r';
cArray[3] = 's';
cArray[4] = 't';
cArray[5] = 'h';
cArray[6] = 'a';
cArray[7] = 'l';
cArray[8] = 'f';
cArray[9] = 's';
cArray[10] = 't';
cArray[11] = 'r';
cArray[12] = 'i';
cArray[13] = 'n';
cArray[14] = 'g';
cArray[15] = '\0';


// There are 15 elements in this array, numbered 0 - 15.
// Some new to this mistakenly try to access "cArray[16]" - ** this is out of bounds! **
    // print entire string at once

printf("%c",cArray[14]);  // <--- %c prints a single character

    return 0;
}

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Write the code to print it to the screen and see!

That is technically correct, but not the most ideal. See the code directly below the example you copied to see how to declare a string with just one line.

But before you change even that, I'd recommend printing out that string to the screen to get a feel for it.

looks like the scanf function is working

Code:

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#include <stdio.h>
#include <stdlib.h>

int main()
{

char cArray[242];

cArray[0] = 'f';  // <--- note a single character is contained within single quotes
cArray[1] = 'i';
cArray[2] = 'r';
cArray[3] = 's';
cArray[4] = 't';
cArray[5] = 'h';
cArray[6] = 'a';
cArray[7] = 'l';
cArray[8] = 'f';
cArray[9] = 's';
cArray[10] = 't';
cArray[11] = 'r';
cArray[12] = 'i';
cArray[13] = 'n';
cArray[14] = 'g';

cArray[27] = 'a';  // <--- note a single character is contained within single quotes
cArray[28] = 'b';
cArray[29] = 'c';
cArray[30] = 'd';
cArray[31] = 'e';
cArray[32] = 'f';
cArray[33] = 'g';
cArray[34] = 'h';
cArray[35] = 'i';
cArray[36] = 'j';
cArray[37] = 'k';
cArray[38] = 'l';
cArray[39] = 'm';
cArray[40] = 'n';
cArray[41] = 'o';

cArray[15] = 'p';  // <--- note a single character is contained within single quotes
cArray[16] = 'q';
cArray[17] = 'r';
cArray[18] = 's';
cArray[19] = 't';
cArray[20] = 'u';
cArray[21] = 'v';
cArray[22] = 'w';
cArray[23] = 'x';
cArray[24] = 'y';
cArray[25] = 'z';

cArray[42] = '\0';


// There are 15 elements in this array, numbered 0 - 15.
// Some new to this mistakenly try to access "cArray[16]" - ** this is out of bounds! **
    // print entire string at once

printf("%c\n",cArray[14]);  // <--- %c prints a single character

// print entire string at once

printf("%s\n",cArray);  // <--- %s prints a null-character-terminated string
// note that just the array name is given without any brackets/indices

printf("%c\n",cArray[40]);  // <--- %c prints a single character


scanf("%s", cArray[40]);
gets(cArray); //Accept String from User

printf("%s\n",cArray);  // <--- %s prints a null-character-terminated string
// note that just the array name is given without any brackets/indices

return 0;
}

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does system c need to pause the screen before accepting another string?:cool:

is there any way to create a dill structured library and call on it in c++
or shall i say

Quote:

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Originally Posted by AutoIt Addict

is there any way to create a dill structured library and call on it in c++
or shall i say

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1. Make the library
2. LoadLibrary function
3. What's the next thing in this 20 questions game?

not so easy
i have created
stringprocessing.c
add.h
main.c

add them to project and targeted the library
then it wants to have a host application

I'll work on it some more
and let you know if i get anywhere

Quote:

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Originally Posted by AutoIt Addict

looks like the scanf function is working

Code:

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scanf("%s", cArray[40]);

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This scanf call is incorrect. scanf expects a pointer to char but you passed in a char (the character 'n', to be exact). Turn on all compiler warnings and see it complain about this line. You should learn what all warnings mean and correct them before trying new things.

thanks man what you said just said fixed it