Programming Language Class/Exam2002_1

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�� imperative language ��. �� ?
PL/1 �� 패한 ��?
Compilation �� pure interpretion �� 하��.
C / C++ �� 트�� ?
�� . Top-Down Parsing �� 함�� 하��

A -> BaA

B -> b | bA

�� unambiguous �� . (�� . �� ; ��확한�� ;)

<factor> -> <id> | (<expr>)

�� .

A = B + C * D

�� left-most �� 하��.
B = 6, C = 4, D = -2 �� 했�� 하�� A �� ?
Type �� ?
FORTRAN, PL/1, BASIC, Perl �� 통��?
Perl �� 해�� . �� ?
Primitive Data Type �� 해 ��하��.
Floating Point �� 해�� 해 �� 표��한��. �� ?
�� Primitive Data Type �� , ��확하�� Floating Point �� 할 �� ? (�� )

Thread ¶

��할�� 한 �� 할�� Ada �� (�� C/C++, Pascal, Ada, Java ��) �� 했��, �� PL/1 �� ; �� 평��해�� 흥(?)��, �� .

�� 1. string (char array) �� 한��. (�� . �� 할�� 한 형��환�� cost�� ) 2. long integer 2 �� 32 bit �� 효��, �� 32bit �� 표��한��. (2^-31 ~ 2^31 * 2^-31 ~ 2^31 �� 표�� , �� 표��할 �� . 2^31 1024 * 1024 * 1024 * 2 �� 10��. ��, �� 표�� 10�� precision ��효�� 테��) ��.. �� 했��. 흑; --��