More pubkey doc updates

1 files changed, 46 insertions, 0 deletions

diff --git a/doc/examples/cpuid.cpp b/doc/examples/cpuid.cpp
new file mode 100644
index 000000000..6d4cc7593
--- /dev/null
+++ b/doc/examples/cpuid.cpp
@@ -0,0 +1,46 @@
+/*
+* (C) 2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <iostream>
+#include <string>
+#include <botan/cpuid.h>
+
+using namespace Botan;
+
+namespace {
+
+void print_if_feature(const std::string& feature_name, bool exists)
+   {
+   std::cout << (exists ? '+' : '-') << " " << feature_name << "\n";
+   }
+
+void print_header(const std::string& descr)
+   {
+   std::cout << "\n" << descr << "\n-----\n";
+   }
+
+}
+
+int main()
+   {
+   CPUID::initialize();
+
+   std::cout << "Cache line size = " << CPUID::cache_line_size() << "\n";
+
+   print_header("SIMD instruction sets");
+   print_if_feature("SSE2", CPUID::has_sse2());
+   print_if_feature("SSSE3", CPUID::has_ssse3());
+   print_if_feature("SSE4.1", CPUID::has_sse41());
+   print_if_feature("SSE4.2", CPUID::has_sse42());
+   print_if_feature("AVX", CPUID::has_avx());
+   print_if_feature("AltiVec", CPUID::has_altivec());
+
+   print_header("Other extensions");
+   print_if_feature("RDTSC", CPUID::has_rdtsc());
+   print_if_feature("PCMUL", CPUID::has_pcmuludq());
+   print_if_feature("AES-NI", CPUID::has_aes_ni());
+   print_if_feature("MOVBE", CPUID::has_movbe());
+   }