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-rw-r--r--numpy/core/src/multiarray/mapping.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/numpy/core/src/multiarray/mapping.c b/numpy/core/src/multiarray/mapping.c
index 604f5390f..a703f3d84 100644
--- a/numpy/core/src/multiarray/mapping.c
+++ b/numpy/core/src/multiarray/mapping.c
@@ -772,8 +772,8 @@ prepare_index(PyArrayObject *self, PyObject *index,
if (indices[i].value != PyArray_DIM(self, used_ndim)) {
static PyObject *warning;
- char *err_msg[174];
- sprintf(err_msg,
+ char err_msg[174];
+ PyOS_snprintf(err_msg, sizeof(err_msg),
"boolean index did not match indexed array along "
"dimension %d; dimension is %" NPY_INTP_FMT
" but corresponding boolean dimension is %" NPY_INTP_FMT,