Convert Char to String in C

Question

How do I convert a character to a string in C  I m currently using c   fgetc fp  which returns a character  But I need a string to be used in strcpy

User · Answer

This is an old question  but I d say none of the answers really fits the OP s question  All he wanted needed to do is this   char c   std  fgetc fp   std  strcpy buffer   amp c     The relevant aspect here is the fact  that the second argument of strcpy   doesn t need to be a char array   c-string  In fact  none of the arguments is a char or char array at all  They are both char pointers   strcpy char  dest  const char  src     dest   A non-const char pointer Its value has to be the memory address of an element of a writable char array  with at least one more element after that   src    A const char pointerIts value can be the address of a single char  or of an element in a char array  That array must contain the special character  0 within its remaining elements  starting with src   to mark the end of the c-string that should be copied

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A code like that should work   int i   0  char string 256   c  while i  lt  256 - 1  amp  amp   c   fgetc fp     EOF     Keep space for the final  0       string i      c    string i      0

User · Answer

I use this to convert char to string  an example     char c    A   char str1 2     c     0    char str2 5        strcpy str2 str1

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Using fgetc fp  only to be able to call strcpy buffer c   doesn t seem right   You could simply build this buffer on your own   char buffer MAX SIZE OF MY BUFFER    int i   0  char ch  while  i  lt  MAX SIZE OF MY BUFFER - 1  amp  amp   ch   fgetc fp      EOF        buffer i      ch    buffer i      0       terminating character   Note that this relies on the fact that you will read less than MAX SIZE OF MY BUFFER characters

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FYI you dont have string datatype in C  Use array of characters to store the value and manipulate it  Change your variable c into an array of characters and use it inside a loop to get values    char c 10   int i 0  while i  10        c i  fgetc fp       i        The other way to do is to use pointers and allocate memory dynamically and assign values

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example char character   to be scanned char merge 2     this is just temporary array to merge with       merge 0    character  merge 1      0     now you have changed it into a string

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To answer the question without reading too much else into it i would  char str 2      0      gives   0   0     str 0    fgetc fp     You could use the second line in a loop with what ever other string operations you want to keep using char s as strings

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You could do many of the given answers  but if you just want to do it to be able to use it with strcpy  then you could do the following           strcpy         char 2      char  c    0             The  char 2      char  c    0    part will temporarily generate null-terminated string out of a character c   This way you could avoid creating new variables for something that you already have in your hands  provided that you ll only need that single-character string just once

User · Answer

Here is a working exemple    printf  - s-    char 2    A   0      This will display -A-

[c] Convert Char to String in C

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