diff --git a/IDEAS b/IDEAS
index adf1ca5..14ab1f4 100644
--- a/IDEAS
+++ b/IDEAS
@@ -1,3 +1,8 @@
+macros vs double evaluation: https://stackoverflow.com/questions/3437404/min-and-max-in-c
+coverage: https://stackoverflow.com/questions/19582660/how-do-the-code-coverage-options-of-gcc-work
+http://frama-c.com/
+http://www.chiark.greenend.org.uk/~sgtatham/cdescent/?HN_20140803
+realloc()
 dynamic programming
 clang-analyzer
 https://talloc.samba.org/talloc/doc/html/libtalloc__tutorial.html
@@ -18,6 +23,12 @@ irgendwas mit unions
 sudoku solver
 clang -Wunreachable-code
 http://underhanded.xcott.com/
+http://ds9a.nl/gcc-simd/
+buddhabrot
+opencl
+sse/avx, und: was macht gcc automatisch
+https://en.wikipedia.org/wiki/Self-balancing_binary_search_tree
+setjmp: http://en.wikibooks.org/wiki/C_Programming/Error_handling
 
 # gcc 4.9
 https://en.wikipedia.org/wiki/Cilk_Plus