Hayk Mirzayans Insect Museum offers training courses, and helps other scientific research centers in completion and maintenance of their insect collections. ITRD acts as the National Identification Service for governmental or non-governmental organizations, publishes various articles, reports, books, data banks and checklists of its holdings, and provides these information free of charge to all visitors. Hayk Mirzayans Insect Museum The Hayk Mirzayans Insect Museum (HMIM) is the largest insect collection in Iran with over 4 million insect specimens, including 20–25,000 local species, hundreds of primary types and paratypes, and a representative collection of exotic insects, especially tropical butterflies. In 1943, Iranian entomologist established a
Comma operator Comma operator In the C and C++ programming languages, the comma operator (represented by the token codice_1) is a binary operator that evaluates its first operand and discards the result, and then evaluates the second operand and returns this value (and type). The use of the comma token as an is distinct from its use in function calls and definitions, variable declarations, enum declarations, and similar constructs, where it acts as a . The comma operator separates "expressions" (which have value) in a way analogous to how the semicolon terminates "statements," and sequences of expressions are enclosed in parentheses analogously