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-rw-r--r--src/stdlib/atoll.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/stdlib/atoll.c b/src/stdlib/atoll.c
index 0e03e0a1..b6930489 100644
--- a/src/stdlib/atoll.c
+++ b/src/stdlib/atoll.c
@@ -10,7 +10,8 @@ long long atoll(const char *s)
case '-': neg=1;
case '+': s++;
}
+ /* Compute n as a negative number to avoid overflow on LLONG_MIN */
while (isdigit(*s))
- n = 10*n + *s++ - '0';
- return neg ? -n : n;
+ n = 10*n - (*s++ - '0');
+ return neg ? n : -n;
}