for PHP8

Author: yuichiis

composer.json

@@ -6,12 +6,12 @@
     "license": "BSD-3-Clause",
     "require": {
         "php": ">=7.2",
-        "interop-phpobjects/polite-math": ">=1.0.3"
+        "interop-phpobjects/polite-math": ">=1.0.4"
     },
     "suggest": {
-        "ext-rindow_openblas": "0.2.0 strongly recommended for speed",
-        "ext-rindow_opencl": "0.1.0 GPU/OpenCL support",
-        "ext-rindow_clblast": "0.1.1 BLAS on GPU/OpenCL support",
+        "ext-rindow_openblas": "0.2.1 strongly recommended for speed",
+        "ext-rindow_opencl": "0.1.1 GPU/OpenCL support",
+        "ext-rindow_clblast": "0.1.2 BLAS on GPU/OpenCL support",
         "rindow/math-plot": "for OpenCL tunning"
     },
     "autoload": {

src/PhpBlas.php

@@ -172,7 +172,7 @@ public function iamin(
         int $n,
         Buffer $X, int $offsetX, int $incX ) : int
     {
-        if(method_exists($this->blas,'iamin')&&$this->useBlas($X)) {
+        if($this->blas!=null && method_exists($this->blas,'iamin')&&$this->useBlas($X)) {
             return $this->blas->iamin($n,$X,$offsetX,$incX);
         }