devxlogo

Program fails because do … while loop needs braces

Program fails because do … while loop needs braces

Question:
I’m a beginner in C programming. I have Microsoft Visual C++ 4.0.

I’ve read the book Programming with C by Byron Gottfried.

Unfortunately, no matter which simple program I try to write, I always run into a mistake. The error I make doesn’t seem wrong, so I don’t know what to change …

I’d appreciate it if you could help me with this simple program and tell me what to change. I want to make it so that it inputs characters and stores them as other character (‘a’ as ‘b’, ‘b’ as ‘c’ …. etc.)The error is: (23) : error C2061: syntax error : identifier ‘i’

This is the program:

#include #include main(){	FILE *fpt;	int i;	char c;		/* open file enc.dat as write-only to store coded text */	fpt=fopen(“enc.dat”, “w”);	/* send to ASCII and code */		do		c=getchar();		i=c;		++i;		c=i;		putc(c, fpt);	while (c != ‘%’);	/* close the enc.dat */	fclose(fpt);}

Answer:
The problem is that you need braces around the body of your do … while loopwrite the do … while block as follows.

do	{		c=getchar();		i=c;		++i;		c=i;		putc(c, fpt);	}	while (c != ‘%’);
and you will be OK.

See also  Comparing different methods of testing your Infrastructure-as-Code
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist