why won't this Work? Post: 44507

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Top Forums UNIX for Dummies Questions & Answers why won't this Work? Post 44507 by mbabeli on Monday 8th of December 2003 05:32:07 AM

12-08-2003

Registered User

why won't this Work?

hey programmers!

1-why won't gcc accept [getc()] as an argument? i tried the recommendations on the man page of getch(),..etc. nothing worked.

2-why it won't see <iostream> && <fstream> even if i implemented the function as follow
std::cout<<"..etc"<<endl;

3-after i type this code in it gives me a cast Error. Why?

Code:

        struct something{
                      struct something *left;
                      struct something *right;
                      char data;
        };
        .
        .
        .
 int main(char *argv[], int argc){
            struct something *head=malloc(sizeof(struct something));
            printf("Data\n");
            getc(head->data);        //here is where the error occurs
            .
            .
            .
}

can anyone help.......... Thanks!

added code tags for readability --oombera

Last edited by oombera; 02-19-2004 at 03:03 PM..

mbabeli

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LEARN ABOUT ULTRIX

getw

getc(3s)																  getc(3s)

Name
       getc, getchar, fgetc, getw - get character or word from stream

Syntax
       #include <stdio.h>

       int getc(stream)
       FILE *stream;

       int getchar()

       int fgetc(stream)
       FILE *stream;

       int getw(stream)
       FILE *stream;

Description
       The function returns the next character from the named input stream.

       The function is identical to (stdin).

       The function behaves like but is a genuine function, not a macro.  It may be used to save object text.

       The  function returns the next word (in a 32-bit integer on a VAX-11 or MIPS machine) from the named input stream.  It returns the constant
       EOF upon end of file or error, but since that is a good integer value, feof and should be used to check the success of The assumes no  spe-
       cial alignment in the file.

Restrictions
       Because it is implemented as a macro, treats a stream argument with side effects incorrectly.  In particular, `getc(*f++);' doesn't work as
       expected.

Diagnostics
       These functions return the integer constant EOF at end of file or upon read error.

       A stop with message, `Reading bad file', means an attempt has been made to read from a stream that has not been opened for reading by

See Also
       fopen(3s), fread(3s), gets(3s), putc(3s), scanf(3s), ungetc(3s)

																	  getc(3s)

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