WhatToWrite.md

@@ -66,8 +66,8 @@ These may require multiple optimizations to perform well, or some pattern/idiom
 
 * safe bool cast from a smart pointer
 * hand coded memcpy, memmove, memset, memcmp
-* simple types and user defined types
-* arrays and containers
+* copy of arrays and containers
+  * simple and user defined types
 * convolution
   * 1D, 2D, and more?
 * matrix multiplication
@@ -80,13 +80,13 @@ These may require multiple optimizations to perform well, or some pattern/idiom
 * sorting a sequence
   * many possible algorithms and implementations
   * given the permutations, is this testable?
-  * maybe just test STL implementations?
+  * maybe just test STL and simple implementations?
 * reversing a sequence
 * rotating members of a sequence
 * find/search sequence
   * again, many possible algorithms and implementations
   * given the permutations, is this testable?
-  * maybe just test STL implementations?
+  * maybe just test STL and simple implementations?
 * lookup tables
 * interleave/deinterleave buffers
 * transpose block
@@ -101,6 +101,7 @@ These may require multiple optimizations to perform well, or some pattern/idiom
 * bitarrays and manipulations of them
 * complex type and template
 
+
 ## Runtime and Library Support
 
 These are library functions or header defined functions/macros supplied by the compiler or OS. These can sometimes be the performance limiting factor in a variety of applications.