praveenbingo commented on a change in pull request #8201:
URL: https://github.com/apache/arrow/pull/8201#discussion_r495826677
##########
File path: cpp/src/gandiva/precompiled/string_ops.cc
##########
@@ -835,6 +835,48 @@ const char* replace_utf8_utf8_utf8(gdv_int64 context,
const char* text,
out_len);
}
+FORCE_INLINE
+const char* binary_string(gdv_int64 context, const char* text, gdv_int32
text_len,
+ gdv_int32* out_len) {
+ gdv_binary ret =
+ reinterpret_cast<gdv_binary>(gdv_fn_context_arena_malloc(context,
text_len));
+
+ if (ret == nullptr) {
+ gdv_fn_context_set_error_msg(context, "Could not allocate memory for
output string");
Review comment:
function that can return errors needs to set that in the function
definition : NativeFunction::kNeedsContext | NativeFunction::kCanReturnErrors
##########
File path: cpp/src/gandiva/precompiled/string_ops.cc
##########
@@ -835,6 +835,48 @@ const char* replace_utf8_utf8_utf8(gdv_int64 context,
const char* text,
out_len);
}
+FORCE_INLINE
+const char* binary_string(gdv_int64 context, const char* text, gdv_int32
text_len,
+ gdv_int32* out_len) {
+ gdv_binary ret =
+ reinterpret_cast<gdv_binary>(gdv_fn_context_arena_malloc(context,
text_len));
+
+ if (ret == nullptr) {
+ gdv_fn_context_set_error_msg(context, "Could not allocate memory for
output string");
+ *out_len = 0;
+ return "";
+ }
+
+ if (text_len == 0) {
+ *out_len = 0;
+ return "";
+ }
+
+ // converting hex encoded string to normal string
+ int j = 0;
+ for (int i = 0; i < text_len; i++, j++) {
+ if (text[i] == '\\' && i + 3 < text_len &&
+ (text[i + 1] == 'x' || text[i + 1] == 'X')) {
+ std::string hex_string;
Review comment:
same as before - please avoid use of std::string
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