9 replies to this topic

[gautham]

C Program to accept and display "5" characters using getchar() and putchar() functions:

here is the code:

#include<stdio.h>

void main()

{

char ch[6];


ch[0]=getchar();

ch[1]=getchar();

ch[2]=getchar();

ch[3]=getchar();

ch[4]=getchar();


putchar(ch[0]);

putchar(ch[1]);

putchar(ch[2]);

putchar(ch[3]);

putchar(ch[4]);

}

When i am Compiling this code in "C" language then it is displaying this Error message: "Conversion may lose significant digits", what could be the reason?

[WingedPanther]

What is the exact error message? What line is it on?

[spcm0012]

What about using fscanf and fprintf instead?
I was able to run your code fine and got the following output:

Quote

[spcm0012@munro ~]$ ./test
abcde
abcde[

What compiler are you using?

Also, char ch[] only needs to be of length 5 since you only have 5 instances of ch being used (0,1,2,3,4), so char ch[5] will do.

[Flying Dutchman]

I think that warning is because getchar function returns an integer, and you're storing them in char array.

[spcm0012]

Flying Dutchman said:

I think that warning is because getchar function returns an integer, and you're storing them in char array.

Yepp, returns as an unsigned char cast to int. If the op uses scanf or fscanf, he can designate that is reading in a char, and use printf to print out the char, and have no warnings.

[fread]

He said he is required to use getchar and putchar. Try int in your declaration.

[gautham]

Now error message is not coming but why it is not working properly?

---------- Post added at 03:26 PM ---------- Previous post was at 03:23 PM ----------

It is accepting only two characters and displaying back.

[spcm0012]

When inputting the data if you are using spaces between the inputs it will count those as characters. Run it again without puttings spaces between your input characters. If you loop the getchar() functions, you would be able to use the return key to separate the characters you want to input without it having this issue.

[gautham]

Quote

spcm0012

thanks mate for your reply but while inputting i am not giving any spaces, if you can compile this code, you will understand.

[AKMafia001]

Well! You got the wrong type.
getchar
int getchar(void);

If successful, return the object requested from the stream (the current object in the input stream to which the stream points). Char values are returned as unsigned char converted to an int. In your case, you are assigning that returned value to the char type array.

putchar
int putchar(int c);

The putchar() function writes the character c (converted to an ``unsigned char'') to the output stream (stdout).

Change the array type from char to int.

Source
manpagez