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authorMattias Andrée <maandree@kth.se>2021-10-29 23:00:19 +0200
committerMattias Andrée <maandree@kth.se>2021-10-29 23:00:19 +0200
commit52f4424f2dcffa5e20e55c52a5777ce9212d05c5 (patch)
tree74bde882b97c6cdd5e8fdfd1342fbb5dcef0d00b /libparsepcf_parse_int16_from_unsigned__.c
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First commit
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'libparsepcf_parse_int16_from_unsigned__.c')
-rw-r--r--libparsepcf_parse_int16_from_unsigned__.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/libparsepcf_parse_int16_from_unsigned__.c b/libparsepcf_parse_int16_from_unsigned__.c
new file mode 100644
index 0000000..3d61ef8
--- /dev/null
+++ b/libparsepcf_parse_int16_from_unsigned__.c
@@ -0,0 +1,13 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int16_t
+libparsepcf_parse_int16_from_unsigned__(uint16_t u)
+{
+ if (u & UINT16_C(0x8000)) {
+ return (int16_t)(uint16_t)~u - 1;
+ } else {
+ return (int16_t)u;
+ }
+}