realloc pic->irep when exhausted
realloc pic->irep when exhausted

dcurrie/picrin,leavesbnw/picrin,omasanori/picrin,leavesbnw/picrin,ktakashi/picrin,picrin-scheme/picrin,omasanori/picrin,picrin-scheme/picrin,ktakashi/picrin,koba-e964/picrin,koba-e964/picrin,dcurrie/picrin,leavesbnw/picrin,koba-e964/picrin,ktakashi/picrin