Thread: Creating a long, specific, c string

Just a tiny correction in John's example (which isn't wrong! just redundant)... This:

Code:

char s[SIZE + 1] = { 0 };

Will fill the entire array with zeros, but this:

Code:

memset( s, ' ', SIZE );

Will fill the array again, this time, with spaces.

The compiler will not "optimize" this. The faster code should be:

Code:

char s[SIZE + 1];    // no initializer
memset( s, ' ', SIZE );
s[SIZE] = '\0';

s[0] = 'x';
s[SIZE - 1] = 'y';

PS: And his solution using macros is very nice!

[]s
Fred