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add isl_mat_col_submul
author
Sven Verdoolaege
<skimo@kotnet.org>
Fri, 2 Jan 2009 16:18:42 +0000
(17:18 +0100)
committer
Sven Verdoolaege
<skimo@kotnet.org>
Tue, 6 Jan 2009 18:10:50 +0000
(19:10 +0100)
isl_mat.c
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isl_mat.h
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diff --git
a/isl_mat.c
b/isl_mat.c
index
3fde011
..
d825e78
100644
(file)
--- a/
isl_mat.c
+++ b/
isl_mat.c
@@
-835,3
+835,12
@@
struct isl_mat *isl_mat_drop_rows(struct isl_ctx *ctx, struct isl_mat *mat,
mat->n_row -= n;
return mat;
}
mat->n_row -= n;
return mat;
}
+
+void isl_mat_col_submul(struct isl_mat *mat,
+ int dst_col, isl_int f, int src_col)
+{
+ int i;
+
+ for (i = 0; i < mat->n_row; ++i)
+ isl_int_submul(mat->row[i][dst_col], f, mat->row[i][src_col]);
+}
diff --git
a/isl_mat.h
b/isl_mat.h
index
ba8ac07
..
a243928
100644
(file)
--- a/
isl_mat.h
+++ b/
isl_mat.h
@@
-63,6
+63,9
@@
struct isl_mat *isl_mat_drop_cols(struct isl_ctx *ctx, struct isl_mat *mat,
struct isl_mat *isl_mat_drop_rows(struct isl_ctx *ctx, struct isl_mat *mat,
unsigned row, unsigned n);
struct isl_mat *isl_mat_drop_rows(struct isl_ctx *ctx, struct isl_mat *mat,
unsigned row, unsigned n);
+void isl_mat_col_submul(struct isl_mat *mat,
+ int dst_col, isl_int f, int src_col);
+
struct isl_basic_set *isl_basic_set_preimage(struct isl_ctx *ctx,
struct isl_basic_set *bset, struct isl_mat *mat);
struct isl_set *isl_set_preimage(struct isl_ctx *ctx,
struct isl_basic_set *isl_basic_set_preimage(struct isl_ctx *ctx,
struct isl_basic_set *bset, struct isl_mat *mat);
struct isl_set *isl_set_preimage(struct isl_ctx *ctx,