Hello,
Code:#include<stdio.h> #define x 'a' int main() { int c,y; y=x; while((c=getchar())!=EOF) { if(c==' ') { if(y!=' ') putchar(c); } else putchar(c); y=c; } return 0; }
In the above code in 2nd line why the compiler shows error if we use ' ' in stead of 'a', and please let me know the below lines
if(y!=' ') putchar(c);
how can these lines replace multi spaces by a single space.
what is y = c;
What is the error message? I replaced 'a' with ' ' on that line and your program compiled without even a warning on gcc 4.8.4Originally Posted by Shankar k
By the way, it is conventional to name macros with fully uppercase names, so x should have been X. Actually, X is a poor name for a macro like this because it is not descriptive. Perhaps INITIAL_VALUE would be better.
Use a loop with a getchar call.
Think about what those variables are for, then rename them to have better (i.e., more descriptive) names. From there, the reason for y = c should become evident.
Look up a C++ Reference and learn How To Ask Questions The Smart Way
Thank you.
