How FORTRAN Stores Two-Dimensional Arrays in Memory

Apturēta KB satura atruna

Šajā rakstā ir iekļauta informācija par produktiem, kuriem korporācija Microsoft vairs nepiedāvā atbalstu. Tāpēc šis raksts tiek piedāvāts “tāds, kāds tas ir”, un tas vairs netiks atjaunināts.

Summary

FORTRAN is different from languages such as C and Pascal in the way that it stores two-dimensional arrays in memory. Although array elements are referenced in row major notation, i.e., (row, column), just as in C or Pascal, FORTRAN stores two-dimensional arrays as one-dimensional column arrays.


For example, in C, a two-dimensional array with three rows and four columns will be stored in memory in the following sequence:
(1,1),(1,2),(1,3),(1,4),(2,1),(2,2),(2,3),(2,4),(3,1),(3,2),(3,3),(3,4)
However, FORTRAN will store the same array in the following sequence:
(1,1),(2,1),(3,1),(1,2),(2,2),(3,2),(1,3),(2,3),(3,3),(1,4),(2,4),(3,4)
Rekvizīti

Raksta ID: 27780. Pēdējo reizi pārskatīts: 2003. gada 1. dec.. Pārskatījums: 1

Atsauksmes