Fix warnings found by clang with new warning flags to be added in later commit

Fixes consist in:
- no use of comma operator for multi statement purpose
- avoid confusing comma in for loops first and third clauses
- avoid implicit long to int casts by storing to long, or explicit bound checking before cast

1 files changed, 1 insertions, 1 deletions

diff --git a/src/pj_transform.c b/src/pj_transform.c
index 5863b39e..93094f01 100644
--- a/src/pj_transform.c
+++ b/src/pj_transform.c
@@ -835,7 +835,7 @@ int pj_datum_transform( PJ *src, PJ *dst,
 /* -------------------------------------------------------------------- */
     if( z == NULL )
     {
-        int	bytes = sizeof(double) * point_count * point_offset;
+        size_t	bytes = sizeof(double) * point_count * point_offset;
         z = (double *) pj_malloc(bytes);
         memset( z, 0, bytes );
         z_is_temp = TRUE;