gcc « char « C Data Type Q&A

1. why is char's sign-ness not defined in C?    stackoverflow.com

The C standard states: ISO/IEC 9899:1999, 6.2.5.15 (p. 49)

The three types char, signed char, and unsigned char are collectively called the character types. The implementation shall define ...

2. ANSI C (ISO C90): Can scanf read/accept an unsigned char?    stackoverflow.com

Simple question: Can scanf read/accept a "small integer" into an unsigned char in ANSI C? example code un_char.c:

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

int main(void)
{
    unsigned char character;

    ...

3. C: gcc implicitly converts signed char to unsigned char and vice versa?    stackoverflow.com

I'm trying to learn C at got stuck with datatype-sizes at the moment. Have a look at this code snippet:

#include <stdio.h>
#include <limits.h>

int main() {
    char a = 255;
  ...

4. char* str="..." vs char str[]="..." strange behaviour    stackoverflow.com

Possible Duplicate:
Program crashes when trying to set a character of a char array

/* strtok example */
#include ...

5. Manipulate char* (passed as an argumen) without returning it[C,freebsd7.1,gcc]    forums.devshed.com

As the title of the topic is not so clear, now here i can clear my problem... I have a program source code, main.c . In which i m intending to do following thing with out changing the source code... ---------------------------------------------------------------------------------------------------- #include int main(int argc,char **argv) { char* backup; char* arg = argv && argc > 0 ? argv[1] : ...

6. GCC - int to char    forums.devshed.com

Here is a simple code to convert an int to char. And my problem is that the int 2 won't display properly in printf. As in it outputs some special character like an outline of a box. I'm using Fedora Core 3 compiling using GCC. #include #include int main() { char *dest, *temp; int i = 2; dest = ...