1identity_matrix(3)              Allegro manual              identity_matrix(3)
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NAME

6       identity_matrix,  identity_matrix_f  -  Global  containing the identity
7       matrix. Allegro game programming library.
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SYNOPSIS

10       #include <allegro.h>
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13       extern MATRIX identity_matrix;
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15       extern MATRIX_f identity_matrix_f;
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DESCRIPTION

18       Global variables containing the 'do nothing' identity matrix. Multiply‐
19       ing by the identity matrix has no effect.
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24Allegro                          version 4.2.2              identity_matrix(3)