Skip to content

Commit 8d9bdf9

Browse files
iampratik13iampratik13
committed
feat: add c implementation for lapack/base/dlaset
--- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: passed - task: lint_package_json status: passed - task: lint_repl_help status: na - task: lint_javascript_src status: passed - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: passed - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: missing_dependencies - task: lint_c_examples status: missing_dependencies - task: lint_c_benchmarks status: missing_dependencies - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed ---
1 parent ed8d4b1 commit 8d9bdf9

19 files changed

Lines changed: 2647 additions & 7 deletions

File tree

‎lib/node_modules/@stdlib/lapack/base/dlaset/README.md‎

Lines changed: 91 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -176,21 +176,70 @@ console.log( ndarray2array( A, shape, strides, 0, order ) );
176176
### Usage
177177

178178
```c
179-
TODO
179+
#include "stdlib/lapack/base/dlaset.h"
180180
```
181181

182-
#### TODO
182+
#### c_dlaset( layout, uplo, M, N, alpha, beta, \*A, LDA )
183183

184-
TODO.
184+
Sets the off-diagonal elements and the diagonal elements of a double-precision floating-point matrix to specified values.
185185

186186
```c
187-
TODO
187+
#include "stdlib/lapack/base/dlaset.h"
188+
#include "stdlib/lapack/base/shared.h"
189+
190+
double A[] = {
191+
1.0, 2.0,
192+
3.0, 4.0
193+
};
194+
195+
c_dlaset( LAPACK_ROW_MAJOR, -1, 2, 2, 1.0, 2.0, A, 2 );
188196
```
189197
190-
TODO
198+
The function accepts the following arguments:
199+
200+
- **layout**: `[in] LAPACK_LAYOUT` storage layout.
201+
- **uplo**: `[in] int` specifies whether to set the upper or lower triangular/trapezoidal part of a matrix `A`.
202+
- **M**: `[in] LAPACK_INT` number of rows in `A`.
203+
- **N**: `[in] LAPACK_INT` number of columns in `A`.
204+
- **alpha**: `[in] double` value assigned to off-diagonal elements.
205+
- **beta**: `[in] double` value assigned to diagonal elements.
206+
- **A**: `[out] double*` output matrix.
207+
- **LDA**: `[in] LAPACK_INT` stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`).
208+
209+
```c
210+
LAPACK_INT c_dlaset( const LAPACK_LAYOUT layout, const int uplo, const LAPACK_INT M, const LAPACK_INT N, const double alpha, const double beta, double *A, const LAPACK_INT LDA );
211+
```
212+
213+
#### c_dlaset_ndarray( uplo, M, N, alpha, beta, \*A, sa1, sa2, oa )
214+
215+
Sets the off-diagonal elements and the diagonal elements of a double-precision floating-point matrix to specified values using alternative indexing semantics.
216+
217+
```c
218+
#include "stdlib/lapack/base/dlaset.h"
219+
#include "stdlib/lapack/base/shared.h"
220+
221+
double A[] = {
222+
1.0, 2.0,
223+
3.0, 4.0
224+
};
225+
226+
c_dlaset_ndarray( -1, 2, 2, 1.0, 2.0, A, 2, 1, 0 );
227+
```
228+
229+
The function accepts the following arguments:
230+
231+
- **uplo**: `[in] int` specifies whether to set the upper or lower triangular/trapezoidal part of a matrix `A`.
232+
- **M**: `[in] LAPACK_INT` number of rows in `A`.
233+
- **N**: `[in] LAPACK_INT` number of columns in `A`.
234+
- **alpha**: `[in] double` value assigned to off-diagonal elements.
235+
- **beta**: `[in] double` value assigned to diagonal elements.
236+
- **A**: `[out] double*` output matrix.
237+
- **sa1**: `[in] LAPACK_INT` stride of the first dimension of `A`.
238+
- **sa2**: `[in] LAPACK_INT` stride of the second dimension of `A`.
239+
- **oa**: `[in] LAPACK_INT` starting index for `A`.
191240
192241
```c
193-
TODO
242+
LAPACK_INT c_dlaset_ndarray( const int uplo, const LAPACK_INT M, const LAPACK_INT N, const double alpha, const double beta, double *A, const LAPACK_INT strideA1, const LAPACK_INT strideA2, const LAPACK_INT offsetA );
194243
```
195244

196245
</section>
@@ -212,7 +261,42 @@ TODO
212261
### Examples
213262

214263
```c
215-
TODO
264+
#include "stdlib/lapack/base/dlaset.h"
265+
#include "stdlib/lapack/base/shared.h"
266+
#include <stdio.h>
267+
268+
int main( void ) {
269+
// Define a 3x3 matrix:
270+
double A[ 3*3 ] = {
271+
1.0, 2.0, 3.0,
272+
4.0, 5.0, 6.0,
273+
7.0, 8.0, 9.0
274+
};
275+
276+
// Specify the number of elements along each dimension of `A`:
277+
const int M = 3;
278+
const int N = 3;
279+
280+
// Set elements of the upper triangle of `A` to 1.0 (off-diagonal) and 2.0 (diagonal):
281+
c_dlaset( LAPACK_ROW_MAJOR, LAPACK_UPPER_TRIANGLE, M, N, 1.0, 2.0, A, N );
282+
283+
// Print the result:
284+
for ( int i = 0; i < M; i++ ) {
285+
for ( int j = 0; j < N; j++ ) {
286+
printf( "A[ %i, %i ] = %lf\n", i, j, A[ (i*N)+j ] );
287+
}
288+
}
289+
290+
// Set elements of the lower triangle of `A` to 3.0 (off-diagonal) and 4.0 (diagonal) using alternative indexing semantics:
291+
c_dlaset_ndarray( LAPACK_LOWER_TRIANGLE, M, N, 3.0, 4.0, A, N, 1, 0 );
292+
293+
// Print the result:
294+
for ( int i = 0; i < M; i++ ) {
295+
for ( int j = 0; j < N; j++ ) {
296+
printf( "A[ %i, %i ] = %lf\n", i, j, A[ (i*N)+j ] );
297+
}
298+
}
299+
}
216300
```
217301
218302
</section>

‎lib/node_modules/@stdlib/lapack/base/dlaset/benchmark/c/Makefile‎

Lines changed: 146 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,146 @@
1+
#/
2+
# @license Apache-2.0
3+
#
4+
# Copyright (c) 2026 The Stdlib Authors.
5+
#
6+
# Licensed under the Apache License, Version 2.0 (the "License");
7+
# you may not use this file except in compliance with the License.
8+
# You may obtain a copy of the License at
9+
#
10+
# http://www.apache.org/licenses/LICENSE-2.0
11+
#
12+
# Unless required by applicable law or agreed to in writing, software
13+
# distributed under the License is distributed on an "AS IS" BASIS,
14+
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15+
# See the License for the specific language governing permissions and
16+
# limitations under the License.
17+
#/
18+
19+
# VARIABLES #
20+
21+
ifndef VERBOSE
22+
QUIET := @
23+
else
24+
QUIET :=
25+
endif
26+
27+
# Determine the OS ([1][1], [2][2]).
28+
#
29+
# [1]: https://en.wikipedia.org/wiki/Uname#Examples
30+
# [2]: http://stackoverflow.com/a/27776822/2225624
31+
OS ?= $(shell uname)
32+
ifneq (, $(findstring MINGW,$(OS)))
33+
OS := WINNT
34+
else
35+
ifneq (, $(findstring MSYS,$(OS)))
36+
OS := WINNT
37+
else
38+
ifneq (, $(findstring CYGWIN,$(OS)))
39+
OS := WINNT
40+
else
41+
ifneq (, $(findstring Windows_NT,$(OS)))
42+
OS := WINNT
43+
endif
44+
endif
45+
endif
46+
endif
47+
48+
# Define the program used for compiling C source files:
49+
ifdef C_COMPILER
50+
CC := $(C_COMPILER)
51+
else
52+
CC := gcc
53+
endif
54+
55+
# Define the command-line options when compiling C files:
56+
CFLAGS ?= \
57+
-std=c99 \
58+
-O3 \
59+
-Wall \
60+
-pedantic
61+
62+
# Determine whether to generate position independent code ([1][1], [2][2]).
63+
#
64+
# [1]: https://gcc.gnu.org/onlinedocs/gcc/Code-Gen-Options.html#Code-Gen-Options
65+
# [2]: http://stackoverflow.com/questions/5311515/gcc-fpic-option
66+
ifeq ($(OS), WINNT)
67+
fPIC ?=
68+
else
69+
fPIC ?= -fPIC
70+
endif
71+
72+
# List of includes (e.g., `-I /foo/bar -I /beep/boop/include`):
73+
INCLUDE ?=
74+
75+
# List of source files:
76+
SOURCE_FILES ?=
77+
78+
# List of libraries (e.g., `-lopenblas -lpthread`):
79+
LIBRARIES ?=
80+
81+
# List of library paths (e.g., `-L /foo/bar -L /beep/boop`):
82+
LIBPATH ?=
83+
84+
# List of C targets:
85+
c_targets := benchmark.size.out
86+
87+
88+
# RULES #
89+
90+
#/
91+
# Compiles source files.
92+
#
93+
# @param {string} [C_COMPILER] - C compiler (e.g., `gcc`)
94+
# @param {string} [CFLAGS] - C compiler options
95+
# @param {(string|void)} [fPIC] - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
96+
# @param {string} [INCLUDE] - list of includes (e.g., `-I /foo/bar -I /beep/boop/include`)
97+
# @param {string} [SOURCE_FILES] - list of source files
98+
# @param {string} [LIBPATH] - list of library paths (e.g., `-L /foo/bar -L /beep/boop`)
99+
# @param {string} [LIBRARIES] - list of libraries (e.g., `-lopenblas -lpthread`)
100+
#
101+
# @example
102+
# make
103+
#
104+
# @example
105+
# make all
106+
#/
107+
all: $(c_targets)
108+
109+
.PHONY: all
110+
111+
#/
112+
# Compiles C source files.
113+
#
114+
# @private
115+
# @param {string} CC - C compiler (e.g., `gcc`)
116+
# @param {string} CFLAGS - C compiler options
117+
# @param {(string|void)} fPIC - compiler flag determining whether to generate position independent code (e.g., `-fPIC`)
118+
# @param {string} INCLUDE - list of includes (e.g., `-I /foo/bar`)
119+
# @param {string} SOURCE_FILES - list of source files
120+
# @param {string} LIBPATH - list of library paths (e.g., `-L /foo/bar`)
121+
# @param {string} LIBRARIES - list of libraries (e.g., `-lopenblas`)
122+
#/
123+
$(c_targets): %.out: %.c
124+
$(QUIET) $(CC) $(CFLAGS) $(fPIC) $(INCLUDE) -o $@ $(SOURCE_FILES) $< $(LIBPATH) -lm $(LIBRARIES)
125+
126+
#/
127+
# Runs compiled benchmarks.
128+
#
129+
# @example
130+
# make run
131+
#/
132+
run: $(c_targets)
133+
$(QUIET) ./$<
134+
135+
.PHONY: run
136+
137+
#/
138+
# Removes generated files.
139+
#
140+
# @example
141+
# make clean
142+
#/
143+
clean:
144+
$(QUIET) -rm -f *.o *.out
145+
146+
.PHONY: clean

0 commit comments

Comments
 (0)