quick c question

[dmm1285]

Is there any case where this:

int ch;
while((ch = getchar()) != '\n')
putchar(ch);

would act differently then:

int ch = 0;
while(ch != '\n')
{
ch = getchar();
putchar(ch);
}

[jpkotta]

They act differently when the character read by getchr() is '\n'.

[dmm1285]

I see what you mean. I understand why that idiom is so used now. I was trying to think of alternate way besides the in line assignment without repeating myself.

[Joeb454]

I'm not 100% sure (not written C for a while), but would it be while (ch != '\0') //basically, NULL

//rest of code