1.1 --- a/test/buffer_tests.c Fri Nov 18 15:33:58 2016 +0100
1.2 +++ b/test/buffer_tests.c Fri Dec 16 23:22:18 2016 +0100
1.3 @@ -27,6 +27,7 @@
1.4 */
1.5
1.6 #include "buffer_tests.h"
1.7 +#include <stdint.h>
1.8
1.9 UCX_TEST(test_ucx_buffer_new) {
1.10 UcxBuffer *b = ucx_buffer_new(NULL, 16, UCX_BUFFER_AUTOEXTEND);
1.11 @@ -97,8 +98,12 @@
1.12 "failed seek shall leave pos unchanged");
1.13
1.14 b->pos = 0;
1.15 - b->size = sizemax / 2 + 32;
1.16 - off_t bigoff = sizemax / 2 - 16;
1.17 + b->size = (sizemax >> 1) + 32;
1.18 +
1.19 + // we don't want to risk overflows in implicit constant casts
1.20 + const size_t bigoff_comp = (sizemax >> 1) - 16;
1.21 + off_t bigoff = (off_t)bigoff_comp;
1.22 +
1.23 r = ucx_buffer_seek(b, -bigoff, SEEK_CUR);
1.24 UCX_TEST_ASSERT(r != 0, "seek cur underflow");
1.25 UCX_TEST_ASSERT(b->pos == 0,
