Kevin's Weblog

I spent most of yesterday hunting down a segfault in one of our unit tests. Here is a greatly simplified version of the code: can you see the bug?

#include <string>

void bar(size_t* len)
{
  *len = 0;
}

int main(void)
{
  std::string buf;
  int len = 255;

  bar((size_t *)&len);

  return 0;
}

Here’s a hint: maybe it doesn’t segfault for you.

Hint #2: the segfault is in basic_string::~basic_string().

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