C - casting int to char and append char to char

Question

I am making my first parallel application  but I am stuck with basics of C  I need to know  how to cast int to char and then how to append one char to another    It you could help me please  i would be glad  Thank you

User · Answer

int myInt   65   char myChar    char myInt      myChar should now be the letter A  char 20  myString    0      make an empty string   myString 0    myChar  myString 1    myChar     Now myString is  AA    This should all be found in any intro to C book  or by some basic online searching

User · Answer

Casting int to char involves losing data and the compiler will probably warn you   Extracting a particular byte from an int sounds more reasonable and can be done like this   number  amp  0x000000ff     first byte     number  amp  0x0000ff00   gt  gt  8     second byte     number  amp  0x00ff0000   gt  gt  16     third byte     number  amp  0xff000000   gt  gt  24     fourth byte

User · Answer

You can use itoa function to convert the integer to a string   You can use strcat function to append characters in a string at the end of another string   If you want to convert a integer to a character  just do the following -   int a   65  char c    char  a    Note that since characters are smaller in size than integer  this casting may cause a loss of data  It s better to declare the character variable as unsigned in this case  though you may still lose data    To do a light reading about type conversion  go here   If you are still having trouble  comment on this answer   Edit  Go here for a more suitable example of joining characters   Also some more useful link is given below -    http   www cplusplus com reference clibrary cstring strncat  http   www cplusplus com reference clibrary cstring strcat    Second Edit  char msg 200   int msgLength  char rankString 200                   Your message has arrived msgLength   strlen msg   itoa rank  rankString  10      I have assumed rank is the integer variable containing the rank id  strncat  msg  rankString   200 - msgLength         msg now contains previous msg   id     You may loose some portion of id if message length   id string length is greater than 200   Third Edit  Go to this link  Here you will find an implementation of itoa  Use that instead

User · Answer

int i   100  char c    char i    There is no way to append one char to another  But you can create an array of chars and use it

User · Answer

Casting int to char is done simply by assigning with the type in parenthesis   int i   65535  char c    char i    Note  I thought that you might be losing data  as in the example   because the type sizes are different   Appending characters to characters cannot be done  unless you mean arithmetics  then it s simple operators   You need to use strings  AKA arrays of characters  and  lt string h gt  functions like strcat or sprintf

[c] C - casting int to char and append char to char

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