[PATCH V2 0/3] strbuf: improve API

This patch series implements an improvment of the strbuf API, allowing strbuf to use preallocated memory. This makes strbuf fit to be used in performance-critical operations.

* The first patch is simply a preparatory work, adding tests for
existing strbuf implementation.
* The second patch is also preparatory: rename a function for the third
patch.
* Most of the work is made in the third patch: handle pre-allocated
memory, extend the API, document it and test it.

As said in the third commit message, the idea comes from Michael Haggerty.

William Duclot (3):
      strbuf: add tests
      pretty.c: rename strbuf_wrap() function
      strbuf: allow to use preallocated memory

Makefile | 1 + pretty.c | 7 ++++--- strbuf.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------- strbuf.h | 44 ++++++++++++++++++++++++++++++++++++++-- t/helper/test-strbuf.c | 229 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ t/t0082-strbuf.sh | 48 ++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 394 insertions(+), 17 deletions(-)