Import GotoBLAS2 1.13 BSD version codes.

reference/isminf.f

@@ -0,0 +1,39 @@
+      integer function isminf(n,sx,incx)
+c
+c     finds the index of element having min. value.
+c     jack dongarra, linpack, 3/11/78.
+c     modified 3/93 to return if incx .le. 0.
+c     modified 12/3/93, array(1) declarations changed to array(*)
+c
+      real sx(*),smin
+      integer i,incx,ix,n
+c
+      isminf = 0
+      if( n.lt.1 .or. incx.le.0 ) return
+      isminf = 1
+      if(n.eq.1)return
+      if(incx.eq.1)go to 20
+c
+c        code for increment not equal to 1
+c
+      ix = 1
+      smin = sx(1)
+      ix = ix + incx
+      do 10 i = 2,n
+         if(sx(ix).ge.smin) go to 5
+         isminf = i
+         smin = sx(ix)
+    5    ix = ix + incx
+   10 continue
+      return
+c
+c        code for increment equal to 1
+c
+   20 smin = sx(1)
+      do 30 i = 2,n
+         if(sx(i).ge.smin) go to 30
+         isminf = i
+         smin = sx(i)
+   30 continue
+      return
+      end