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-rw-r--r--src/runtime/c/gu/string.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/c/gu/string.c b/src/runtime/c/gu/string.c
index 7655b32ab..dc9913002 100644
--- a/src/runtime/c/gu/string.c
+++ b/src/runtime/c/gu/string.c
@@ -280,7 +280,7 @@ gu_string_to_double(GuString s, double *res)
bool neg = false;
bool dec = false;
- int exp = 1;
+ double exp = 1;
if (src[i] == '-') {
neg = true;