Questions that are relevant to one or more library functions or headers:

1.6 malloc

1.31b malloc

4.2 malloc

Most of section 7 - malloc

section 8 - various str* functions

11.7 printf /* also applies to other variadic functions, but printf is the one that this mistake is most commonly made */

12.2 feof

12.6 printf

other things in section 12: scanf

12.23 gets

13.2 strncpy

13.5 toupper, tolower

13.8, 13.9 qsort

13.22 exit

13.23 memcpy, memmove

Questions that may be relevant to other current or future articles

4.11 Pass by Reference

approx 11.12 through 11.16 could be linked from main