type: Rename size4_t to sizev4_t

Naming of many vector types and matrix types are not clear enough.
For example, we have:
  vector_3_t, which is a vector of three int.
  vec3_t, which is a vector of three float.
  size4_t, which is a vector of four size_t.
  mat33_t, which is a 3x3 matrix of float.
  matrix_3x3_t, which is a 3x3 matrix of fixed point.
Besides, we have types like int8_t, uint16_t types.

To clearly distinguished types, the CL propose to,

For vector types, naming should be `$type + 'v' + $num + '_t'`:
  vector_3_t becomes intv3_t
  vec3_t becomes floatv3_t
  vector 4 of uint16_t becomes uint16v4_t (which doesn't exist yet)

For matrix types, naming should be `mat$N$N_` + $type + '_t', where $N is the
matrix size:
  matrix_3x3_t becomes mat33_fp_t  # fp: fixed point
  mat33_t becomes mat33_float_t

TEST=make buildall -j
BUG=b:114662791

Change-Id: I3b63b4b1eb4c9ca4166ad207a5646e0c307cd418
Signed-off-by: Yilun Lin <yllin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1215445
Commit-Ready: Yilun Lin <yllin@chromium.org>
Tested-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/mat44.h b/include/mat44.h
index eddfdeb60e..953cb5dddc 100644
--- a/include/mat44.h
+++ b/include/mat44.h
@@ -12,13 +12,13 @@
 #include "util.h"
 
 typedef float mat44_t[4][4];
-typedef size_t size4_t[4];
+typedef size_t sizev4_t[4];
 
-void mat44_decompose_lup(mat44_t LU, size4_t pivot);
+void mat44_decompose_lup(mat44_t LU, sizev4_t pivot);
 
 void mat44_swap_rows(mat44_t A, const size_t i, const size_t j);
 
 void mat44_solve(mat44_t A, floatv4_t x, const floatv4_t b,
-		 const size4_t pivot);
+		 const sizev4_t pivot);
 
 #endif  /* __CROS_EC_MAT_44_H */