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-rw-r--r--py/lexer.c2
-rw-r--r--py/vstr.c1
2 files changed, 2 insertions, 1 deletions
diff --git a/py/lexer.c b/py/lexer.c
index af413021b1..8088697d54 100644
--- a/py/lexer.c
+++ b/py/lexer.c
@@ -471,7 +471,7 @@ static void mp_lexer_next_token_into(mp_lexer_t *lex, mp_token_t *tok, bool firs
case 'r': c = 0x0d; break;
case 'x':
{
- uint num;
+ uint num = 0;
if (!get_hex(lex, 2, &num)) {
// TODO error message
assert(0);
diff --git a/py/vstr.c b/py/vstr.c
index 18e6d2d0a8..b2e46c89f9 100644
--- a/py/vstr.c
+++ b/py/vstr.c
@@ -190,6 +190,7 @@ void vstr_cut_tail(vstr_t *vstr, int len) {
} else {
vstr->len -= len;
}
+ vstr->buf[vstr->len] = 0;
}
void vstr_printf(vstr_t *vstr, const char *fmt, ...) {