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The Multiple Assignment Statement
March 1978 (vol. 4 no. 2)
pp. 89-93
| ASCII Text | x | ||
| D. Gries, "The Multiple Assignment Statement," IEEE Transactions on Software Engineering, vol. 4, no. 2, pp. 89-93, March, 1978. | |||
| BibTex | x | ||
| @article{ 10.1109/TSE.1978.231479, author = {D. Gries}, title = {The Multiple Assignment Statement}, journal ={IEEE Transactions on Software Engineering}, volume = {4}, number = {2}, issn = {0098-5589}, year = {1978}, pages = {89-93}, doi = {http://doi.ieeecomputersociety.org/10.1109/TSE.1978.231479}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - JOUR JO - IEEE Transactions on Software Engineering TI - The Multiple Assignment Statement IS - 2 SN - 0098-5589 SP89 EP93 EPD - 89-93 A1 - D. Gries, PY - 1978 KW - subscripted variables KW - Axiomatic definition KW - multiple assignment VL - 4 JA - IEEE Transactions on Software Engineering ER - | |||
The conventional axiomatic definitions are given for multiple assignment to simple variables and for assignment to a single subscripted variable, along with examples to illustrate their use. The original contributions of this paper are the extension of the definition to include multiple assignment to several subscripted variables, and the development of a nontrivial, practical algorithm in which multiple assignment to several subscripted variables is indeed useful. Arguments are given to support the conjecture that the use of subscripted variables, like the use of pointers, can lead to exponential explosion of the length of a proof (and thus of the time needed to understand a program) unless the programmer is careful.
Index Terms:
subscripted variables, Axiomatic definition, multiple assignment
Citation:
D. Gries, "The Multiple Assignment Statement," IEEE Transactions on Software Engineering, vol. 4, no. 2, pp. 89-93, March 1978, doi:10.1109/TSE.1978.231479
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