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-rw-r--r--ext/psych/parser.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/ext/psych/parser.c b/ext/psych/parser.c
index 7bfdf4af90..f0751051a1 100644
--- a/ext/psych/parser.c
+++ b/ext/psych/parser.c
@@ -19,9 +19,9 @@ static ID id_end_mapping;
#define PSYCH_TRANSCODE(_str, _yaml_enc, _internal_enc) \
do { \
- rb_enc_associate_index(_str, _yaml_enc); \
+ rb_enc_associate_index((_str), (_yaml_enc)); \
if(_internal_enc) \
- _str = rb_str_export_to_enc(_str, _internal_enc); \
+ (_str) = rb_str_export_to_enc((_str), (_internal_enc)); \
} while (0)
static int io_reader(void * data, unsigned char *buf, size_t size, size_t *read)