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Replace 4096B format buffer with std::string

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This commit is contained in:
Ivan Smirnov 2016-07-18 22:52:08 +01:00
parent f5f75c6544
commit 098f9aef73
1 changed files with 3 additions and 3 deletions
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6
include/pybind11/numpy.h
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@ -291,7 +291,7 @@ struct npy_format_descriptor<T, typename std::enable_if<is_pod_struct<T>::value>
static const char* format() {
if (!dtype_())
pybind11_fail("NumPy: unsupported buffer format!");
return format_();
return format_().c_str();
}
static void register_dtype(std::initializer_list<field_descriptor> fields) {
@ -337,7 +337,7 @@ struct npy_format_descriptor<T, typename std::enable_if<is_pod_struct<T>::value>
if (sizeof(T) > offset)
oss << (sizeof(T) - offset) << 'x';
oss << '}';
std::strncpy(format_(), oss.str().c_str(), 4096);
format_() = oss.str();
// Sanity check: verify that NumPy properly parses our buffer format string
auto arr = array(buffer_info(nullptr, sizeof(T), format(), 1, { 0 }, { sizeof(T) }));
@ -348,7 +348,7 @@ struct npy_format_descriptor<T, typename std::enable_if<is_pod_struct<T>::value>
private:
static inline PyObject*& dtype_() { static PyObject *ptr = nullptr; return ptr; }
static inline char* format_() { static char s[4096]; return s; }
static inline std::string& format_() { static std::string s; return s; }
};
// Extract name, offset and format descriptor for a struct field