be careful about 21st Century C: https://www.amazon.com/-/de/gp/customer-reviews/R3IQKSK19FIEI5/ref=cm_cr_arp_d_viewpnt?ie=UTF8&ASIN=B00NYBRH30#R3IQKSK19FIEI5 h

be careful about 21st Century C: https://www.amazon.com/-/de/gp/customer-reviews/R3IQKSK19FIEI5/ref=cm_cr_arp_d_viewpnt?ie=UTF8&ASIN=B00NYBRH30#R3IQKSK19FIEI5 https://www.amazon.com/-/de/gp/customer-reviews/R3IQKSK19FIE... I agree with the review author. The quoted paragraph about hash tables is shocking!