while( (ch = fgetc(stdin)) != -1 && ch != '\n' )
{
if(ch == '\b') {
- if( pos == 0 ) continue;
+ if( pos <= 0 ) continue;
pos --;
ret[pos] = '\0';
}
while( (ch = fgetc(stdin)) != -1 && ch != '\n' )
{
if(ch == '\b') {
- if( pos == 0 ) continue;
+ if( pos <= 0 ) continue;
pos --;
ret[pos] = '\0';
}