LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ check1()

subroutine check1 ( real  SFAC)

Definition at line 248 of file sblat1.f.

249* .. Parameters ..
250 INTEGER NOUT
251 parameter(nout=6)
252* .. Scalar Arguments ..
253 REAL SFAC
254* .. Scalars in Common ..
255 INTEGER ICASE, INCX, INCY, N
256 LOGICAL PASS
257* .. Local Scalars ..
258 INTEGER I, IX, LEN, NP1
259* .. Local Arrays ..
260 REAL DTRUE1(5), DTRUE3(5), DTRUE5(8,5,2), DV(8,5,2),
261 + DVR(8), SA(10), STEMP(1), STRUE(8), SX(8),
262 + SXR(15)
263 INTEGER ITRUE2(5), ITRUEC(5)
264* .. External Functions ..
265 REAL SASUM, SNRM2
266 INTEGER ISAMAX
267 EXTERNAL sasum, snrm2, isamax
268* .. External Subroutines ..
269 EXTERNAL itest1, sscal, stest, stest1
270* .. Intrinsic Functions ..
271 INTRINSIC max
272* .. Common blocks ..
273 COMMON /combla/icase, n, incx, incy, pass
274* .. Data statements ..
275 DATA sa/0.3e0, -1.0e0, 0.0e0, 1.0e0, 0.3e0, 0.3e0,
276 + 0.3e0, 0.3e0, 0.3e0, 0.3e0/
277 DATA dv/0.1e0, 2.0e0, 2.0e0, 2.0e0, 2.0e0, 2.0e0,
278 + 2.0e0, 2.0e0, 0.3e0, 3.0e0, 3.0e0, 3.0e0, 3.0e0,
279 + 3.0e0, 3.0e0, 3.0e0, 0.3e0, -0.4e0, 4.0e0,
280 + 4.0e0, 4.0e0, 4.0e0, 4.0e0, 4.0e0, 0.2e0,
281 + -0.6e0, 0.3e0, 5.0e0, 5.0e0, 5.0e0, 5.0e0,
282 + 5.0e0, 0.1e0, -0.3e0, 0.5e0, -0.1e0, 6.0e0,
283 + 6.0e0, 6.0e0, 6.0e0, 0.1e0, 8.0e0, 8.0e0, 8.0e0,
284 + 8.0e0, 8.0e0, 8.0e0, 8.0e0, 0.3e0, 9.0e0, 9.0e0,
285 + 9.0e0, 9.0e0, 9.0e0, 9.0e0, 9.0e0, 0.3e0, 2.0e0,
286 + -0.4e0, 2.0e0, 2.0e0, 2.0e0, 2.0e0, 2.0e0,
287 + 0.2e0, 3.0e0, -0.6e0, 5.0e0, 0.3e0, 2.0e0,
288 + 2.0e0, 2.0e0, 0.1e0, 4.0e0, -0.3e0, 6.0e0,
289 + -0.5e0, 7.0e0, -0.1e0, 3.0e0/
290 DATA dvr/8.0e0, -7.0e0, 9.0e0, 5.0e0, 9.0e0, 8.0e0,
291 + 7.0e0, 7.0e0/
292 DATA dtrue1/0.0e0, 0.3e0, 0.5e0, 0.7e0, 0.6e0/
293 DATA dtrue3/0.0e0, 0.3e0, 0.7e0, 1.1e0, 1.0e0/
294 DATA dtrue5/0.10e0, 2.0e0, 2.0e0, 2.0e0, 2.0e0,
295 + 2.0e0, 2.0e0, 2.0e0, -0.3e0, 3.0e0, 3.0e0,
296 + 3.0e0, 3.0e0, 3.0e0, 3.0e0, 3.0e0, 0.0e0, 0.0e0,
297 + 4.0e0, 4.0e0, 4.0e0, 4.0e0, 4.0e0, 4.0e0,
298 + 0.20e0, -0.60e0, 0.30e0, 5.0e0, 5.0e0, 5.0e0,
299 + 5.0e0, 5.0e0, 0.03e0, -0.09e0, 0.15e0, -0.03e0,
300 + 6.0e0, 6.0e0, 6.0e0, 6.0e0, 0.10e0, 8.0e0,
301 + 8.0e0, 8.0e0, 8.0e0, 8.0e0, 8.0e0, 8.0e0,
302 + 0.09e0, 9.0e0, 9.0e0, 9.0e0, 9.0e0, 9.0e0,
303 + 9.0e0, 9.0e0, 0.09e0, 2.0e0, -0.12e0, 2.0e0,
304 + 2.0e0, 2.0e0, 2.0e0, 2.0e0, 0.06e0, 3.0e0,
305 + -0.18e0, 5.0e0, 0.09e0, 2.0e0, 2.0e0, 2.0e0,
306 + 0.03e0, 4.0e0, -0.09e0, 6.0e0, -0.15e0, 7.0e0,
307 + -0.03e0, 3.0e0/
308 DATA itrue2/0, 1, 2, 2, 3/
309 DATA itruec/0, 1, 1, 1, 1/
310* .. Executable Statements ..
311 DO 80 incx = 1, 2
312 DO 60 np1 = 1, 5
313 n = np1 - 1
314 len = 2*max(n,1)
315* .. Set vector arguments ..
316 DO 20 i = 1, len
317 sx(i) = dv(i,np1,incx)
318 20 CONTINUE
319*
320 IF (icase.EQ.7) THEN
321* .. SNRM2 ..
322 stemp(1) = dtrue1(np1)
323 CALL stest1(snrm2(n,sx,incx),stemp(1),stemp,sfac)
324 ELSE IF (icase.EQ.8) THEN
325* .. SASUM ..
326 stemp(1) = dtrue3(np1)
327 CALL stest1(sasum(n,sx,incx),stemp(1),stemp,sfac)
328 ELSE IF (icase.EQ.9) THEN
329* .. SSCAL ..
330 CALL sscal(n,sa((incx-1)*5+np1),sx,incx)
331 DO 40 i = 1, len
332 strue(i) = dtrue5(i,np1,incx)
333 40 CONTINUE
334 CALL stest(len,sx,strue,strue,sfac)
335 ELSE IF (icase.EQ.10) THEN
336* .. ISAMAX ..
337 CALL itest1(isamax(n,sx,incx),itrue2(np1))
338 DO 100 i = 1, len
339 sx(i) = 42.0e0
340 100 CONTINUE
341 CALL itest1(isamax(n,sx,incx),itruec(np1))
342 ELSE
343 WRITE (nout,*) ' Shouldn''t be here in CHECK1'
344 stop
345 END IF
346 60 CONTINUE
347 IF (icase.EQ.10) THEN
348 n = 8
349 ix = 1
350 DO 120 i = 1, n
351 sxr(ix) = dvr(i)
352 ix = ix + incx
353 120 CONTINUE
354 CALL itest1(isamax(n,sxr,incx),3)
355 END IF
356 80 CONTINUE
357 RETURN
358*
359* End of CHECK1
360*
subroutine stest(LEN, SCOMP, STRUE, SSIZE, SFAC)
Definition: cblat1.f:609
subroutine stest1(SCOMP1, STRUE1, SSIZE, SFAC)
Definition: cblat1.f:668
subroutine itest1(ICOMP, ITRUE)
Definition: cblat1.f:743
integer function isamax(N, SX, INCX)
ISAMAX
Definition: isamax.f:71
subroutine sscal(N, SA, SX, INCX)
SSCAL
Definition: sscal.f:79
real(wp) function snrm2(n, x, incx)
SNRM2
Definition: snrm2.f90:89
real function sasum(N, SX, INCX)
SASUM
Definition: sasum.f:72
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