-
strcat(buf,buf);
printf(buf);
}
While executing this in VC++ I do not get an output . Looks like the program runs into an infinite loop. But while executing the same in Turbo C I get the output as "hellohelloh". What could be the reason behind this difference in output?">Consider the following program segment :#include #include void main () { char buf[100] = "hello"; strcat(buf,buf); printf(buf);}While executing this in VC++ I do not get an output . Looks like the program runs into an infinite loop. But while executing the same in Turbo C I get the output as "hellohelloh". What could be the reason behind this difference in output?
jbode
- Jul 6th, 2010
As kbjarneson pointed out, the problem is that you are clobbering the 0 terminator of the input string; once that happens, strcat() doesn't know where to stop. His solution is to use memmove...
kbjarnason
- Jul 2nd, 2010
Consider how strcat might be written:strcat( char *dst, char *src ){ /* Find end of string */ while ( *dst ) dst++; while ...
