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-rw-r--r--src/geodtest.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/geodtest.c b/src/geodtest.c
index ec2a0dde..0ee86d5c 100644
--- a/src/geodtest.c
+++ b/src/geodtest.c
@@ -32,7 +32,7 @@ static int checkEquals(double x, double y, double d) {
static int checkNaN(double x) {
if (x != x)
return 0;
- printf("checkNaN fails\n");
+ printf("checkNaN fails: %.7g\n", x);
return 1;
}