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authorBoris Kolpackov <boris@codesynthesis.com>2021-07-06 16:06:23 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2021-07-06 16:06:23 +0200
commit4cebad3859f8cc4fe526a89ef2277d1db9ee9b7c (patch)
tree980ef15cfa6d2742f28afcbeaaf528d9f3637353 /tests/builtin
parent739c96fc8e0dd5e9889149ece229c5300f3a58fb (diff)
Clear errno before calling strto*() functions
Diffstat (limited to 'tests/builtin')
-rw-r--r--tests/builtin/driver.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/builtin/driver.cxx b/tests/builtin/driver.cxx
index 843631a..bab74aa 100644
--- a/tests/builtin/driver.cxx
+++ b/tests/builtin/driver.cxx
@@ -90,6 +90,7 @@ main (int argc, char* argv[])
assert (!s.empty ());
char* e (nullptr);
+ errno = 0; // We must clear it according to POSIX.
uint64_t r (strtoull (s.c_str (), &e, 10)); // Can't throw.
assert (errno != ERANGE && e == s.c_str () + s.size ());
return r;