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-rw-r--r--src/string_util.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/string_util.cc b/src/string_util.cc
index c69e40a..9ba63a7 100644
--- a/src/string_util.cc
+++ b/src/string_util.cc
@@ -56,7 +56,7 @@ void ToExponentAndMantissa(double val, int precision, double one_k,
scaled /= one_k;
if (scaled <= big_threshold) {
mantissa_stream << scaled;
- *exponent = i + 1;
+ *exponent = static_cast<int64_t>(i + 1);
*mantissa = mantissa_stream.str();
return;
}