Swallowtail butterfly passed in a pupal diapause stage. As swallowtail butterflies are large, colorful, and attractive, they were once targeted by butterfly collectors. The largest of these, the birdwing butterflies are particularly sought after and are cultured in butterfly farms for the purpose of collectors. Many members of the family feed as larvae on plants of the citrus family, Rutaceae. Some of these attractive butterflies are therefore considered pests in citrus orchards. The Oregon swallowtail is the state insect of Oregon. The eastern tiger swallowtail is the state insect of Virginia and the state butterfly of Georgia, Delaware, and South Carolina. The
Comma operator to how sequences of statements are enclosed in braces: codice_2 is a sequence of expressions, separated by commas, which evaluates to the last expression codice_3 while codice_4 is a sequence of statements, and does not evaluate to any value. A comma can only occur between two expressions – commas "separate" expressions – unlike the semicolon, which occurs at the end of a (non-block) statement – semicolons "terminate" statements. The comma operator has the lowest precedence of any C operator, and acts as a sequence point. In a combination of commas and semicolons, semicolons have lower precedence than commas, as semicolons