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path: root/src/auxiliaryFunctions/find/zfinda.c
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-rw-r--r--src/auxiliaryFunctions/find/zfinda.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/auxiliaryFunctions/find/zfinda.c b/src/auxiliaryFunctions/find/zfinda.c
index 1a98e3b3..f9c3f970 100644
--- a/src/auxiliaryFunctions/find/zfinda.c
+++ b/src/auxiliaryFunctions/find/zfinda.c
@@ -15,7 +15,10 @@
void zfinda(doubleComplex* z, int size, double *out, int* indiceOut) {
int i = 0;
indiceOut[1]=0;
-
+
+ /* if out is empty */
+ out[0]=-1;
+
for (i = 0; i < size ; ++i) {
if (zreals(z[i]) != 0 || zimags(z[i]) != 0) {
out[indiceOut[1]] = (double)(i+1);