avoid dynamic allocas (#410)

1 files changed, 4 insertions, 3 deletions

diff --git a/src/wasm-s-parser.h b/src/wasm-s-parser.h
index a2a0e0027..674341d1e 100644
--- a/src/wasm-s-parser.h
+++ b/src/wasm-s-parser.h
@@ -1066,8 +1066,9 @@ private:
       Element& curr = *s[i];
       assert(curr[0]->str() == SEGMENT);
       const char *input = curr[2]->c_str();
-      char data[strlen(input)];
-      char *write = data;
+      std::vector<char> data;
+      data.resize(strlen(input));
+      char *write = (char*)&data[0];
       while (1) {
         if (input[0] == 0) break;
         if (input[0] == '\\') {
@@ -1100,7 +1101,7 @@ private:
         *write++ = input[0];
         input++;
       }
-      wasm.memory.segments.emplace_back(atoi(curr[1]->c_str()), (const char*)data, write - data);
+      wasm.memory.segments.emplace_back(atoi(curr[1]->c_str()), (const char*)&data[0], write - (const char*)&data[0]);
       i++;
     }
   }