C :: How To Convert From Array Of Chars To Strings
Jan 13, 2014
As a part of a program I am supposed to write, I would like to receive a string from the user (for example: "Hi my name is Joe").
obviously, the string is inserted to an array of chars (arr[0]='H', arr[1]='i', arr[2]=' ',... and so on).
What I would like to do, is to put each word separately in each array cell (for example arr[0]='Hi', arr[1]="my"..., and so on). How can I do this? (I can not use any functions, unless I write them myself).
I am trying to convert some chars to UTF-8 strings...
Example:
std::string gethex(char c) { /* EXAMPLE if (c == 'é') return "%c3%a9"; I need a function that converts chars like "á, é, í, ã" to UTF-8 hexadecimal strings... */ }
[Code] .....
[URL] .... does it. Choose UTF-8, type some character and click 'Url Encode'.
So, I'm working with cocos2d-x and there's a specific function used to print true type fonts to the screen. My problem is that I want to feed a string into the function, but it only takes a string of const char (Which I don't even know what that is. AFAIK strings are a string of chars, not const chars).
std::string coord; //stream a constantly changing float into coord ... CCLabelTTF *pCoord = CCLabelTTF::create(coord, "Arial", 42.0);
What happens : Error : no instance of overloaded function "...CCLabelTTF::create" matches the argument list. Argument types are (std::string, const char [6], int)
Basically, What I need to know is how would I feed a constantly updating string into the 1st argument?
I am trying to make a for loop that will print out chars in an array while using a #define before main. My problem is that each name has a different amount of chars in it. How do you account for that when you are trying to define a size? For example, I am playing around with the numbers and I just put 7 in for size:
I'm trying to right the function that puts the correct letters in the right positons being reported from my previous compareletter function for my game of hang man and its not updating the word in progress array. Here's my compare letter function that's working correctly:
Code: //function that returns the index of the letter that the user has guessed or Code: //-1 if the letter isn't in the word int CompareLetter(char array[], char guess, int numLetters) { int i;
[Code....
However, this isn't changing any of the position of the asterisks in the word in progress array positions 0-3.
I am trying to write a function to save the state of a tic tac toe game. It seems to be working well except the loop to read the chars in from a .txt file is running 18 times instead of 9 and thus overwriting the array with blank boxes. The code below is the part of the function I am having an issue with. Counter is being increased every time the second for loop runs which should be 9 times. However, it is apparently running 18 times with the first 9 runs filling newBoard correctly and the second 9 times overwriting it with boxes. how to fix it?
ifstream inputFile("file.txt"); char newBoard[3][3]; char a; int counter = 0; while(counter<=9) { for(int r = 0; r<3; r++)
I understand most of program below. Essentially, we have strings that we want to convert from hex values to decimal equivalents. We check if first two characters of string are 0x or 0X, which signifies hex format. If our hex string consists of solely digits like 0x25, then the processing is simple. We take the digit assign it to answer variable, and for each additional position in the hex base-16 system, we multiply the digit by 16.
Now if the hex string is something like 0x2A, then for 'A', the hexalpha_to_int() function is called, since we are able to find 'A' in the hexalpha string, we take the value of 'A', which is ascii 65 divide it by 2 and add 10 to it: 65/2+10=42.5. This doesn't make sense. What is the purpose of this logic right here: 10 + (i / 2).
Code: #include <stdio.h> #include <stdlib.h>
int hexalpha_to_int(int c){ char hexalpha[] = "aAbBcCdDeEfF";
I have a problem set where i have to read in numbers from a file as strings, convert from strings to integers, and pass the integers into a linked list, where each integer is a node. This is what I have so far:
Code: # include <stdio.h> # include <stdlib.h> # define MAX_INT_SIZE 10000 typedef struct integer BigInt; struct integer {
1. I finished reading a beginning C book, and in the section about arrays, it says that one string can fit in a character array (char arrayname[]) but there cannot be a string array (string arrayname[]) that have multiple strings. Is
Code: string arrayname[4] = {"one", "two", "three"}; not valid?
My compiler lets me run it and it works, but why is the book saying it's wrong?
2. I know you can represent multiple strings in a character array by:
because [10][4] indicates that there should be four newarrays created with a max of 10 characters each, but is
Code: string multiplestrings[10][4] = ("i love you", "hello come to me", "i don't get C"; "hello world", "what are arrays"; "i am happy", "I am learning how to code"); valid?
Does multiplestrings[10][4] basically create 4 string arrays that have a maximum of 10 different strings within each string array?
I thought that if I were to access Buffer1 via BufPtrs[0], I would simply just put an * to it before printf()-ing or store it in a char[] (equivalent to a string).
#include<iostream>; using namespace std; int strlen(char []); void strcat(char S1[], char S2[], int size_1, int size_2); const int SIZE = 100; const int MAX = 100;
[Code]...
i have been trying to do a function that unites strings entered by user, i need to do this without any other libraries but i keep getting an output of the first word and dots.
I was very much confused with managing the 3d arrays. Other than initialising it is tough for me to input the data into the 3d array at runtime. I have tried the every possible method i know untill now but i can't successfully input and output the data.
I have written a code by declaring the 3d array of char s[5][2][20] in main and passing it's base address into another function, lets say input(char (*p)[2][20],int ,int ,int). I have passed the 3 dimensions in declaration 5,2,20 to the input function i have used these 3 values as the subscript for the pointer p and tried to input the data. But i wasn't successful.
How to input the strings into the 3d array.
My preferences were:
1.The change of subscript value should take place in loop(eg:for). 2.Which indexes should be used for inputing the data through pointer. 3.Use either "scanf" or "gets" function to inputs the data and print using "printf" or puts.
I'm looking for a algorithm to search portions of string that have the same caracter. The only possible values are: a,n and g
Char index: 0 1 2 3 4 5 6 7 8 9 RESULT ------------------------------------------ Example 1: a g g g a a 0,4 Example 2: g g g a n n a 0,3 Example 3: a g g g g g g a 0,7 Example 4: g g g g g g g 0,6 Example 5: g g a a g a a a g 0,2,3,5,7,8
