#line Preprocessor Directive | C Programming Tutorial

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I started my IT career over 20 years ago and occasionally would write trivial c programs here and there not really knowing fully what I was doing. Back then googling a programming problem wasn't as easy as it is today but we managed to troubleshoot and find solutions anyway.

I say all that to say, thank you for producing these videos. Your C programming content has managed to connect dots where other content creators on YT haven't been able to reach. The format is extremely easy to follow and navigating your rational as to the when, why, and where are truly top notch.

I look forward to you touching on the subject of writing CGI scripts in C as you have inspired me to do so after spending years writing them in PHP.

rickmarron

Is there no way to reset __FILE__ and __LINE__ back to return actual values in current source file?

drequena

My doubt here is what if someone changes the file origin.c so the line of interest is not 51 anymore? Would someone has to manually remember to update file.c? If that is the case there is a high risk these will suffer from the same issue that documentation suffers.

vicsteiner

Hi sir thank you for your consistently uploading video's on programming languages
Here I have doubt in below programme

#include<stdio.h>
int main(void)
{
unsigned short x = 8, y = 0;

// Pre-Increment Example on variable 'x'
printf("Before Pre-Increment x=%d \n", x);
printf("At Pre-Increment x=%d \n", --x); /*Prefix decrement*/
printf("After Pre-Decrement x=%d \n", x);

printf("Before Post-Increment y=%d \n", y);
printf("At Post-Increment y=%d \n", y--); /*Postfix decrement*/
printf("After Post-Increment y=%d \n", y);

return 0;
}
At last printf in the code I am expecting 65535 and the output is also same but one thing I didn't understand at the place if I change

unsigned short ----> unsigned int the output at the last printf I am expecting in positive number but the answer showing in negative value which is -1 why it's so ... Thank you

ramakrishna

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