Place cXstring_view in a separate header

1 files changed, 38 insertions, 0 deletions

diff --git a/toolsrc/include/cstring_view.h b/toolsrc/include/cstring_view.h
new file mode 100644
index 000000000..f516f9fec
--- /dev/null
+++ b/toolsrc/include/cstring_view.h
@@ -0,0 +1,38 @@
+#pragma once
+#include <string>
+
+namespace vcpkg
+{
+    struct cstring_view
+    {
+        cstring_view(const char* cstr) : cstr(cstr) {}
+        cstring_view(const std::string& str) : cstr(str.c_str()) {}
+
+        operator const char*() const { return cstr; }
+
+        const char* c_str() const { return cstr; }
+
+    private:
+        const char* cstr;
+    };
+
+    inline const char* to_printf_arg(const cstring_view spec) { return spec.c_str(); }
+
+    struct cwstring_view
+    {
+        cwstring_view(const wchar_t* cstr) : cstr(cstr) {}
+        cwstring_view(const std::wstring& str) : cstr(str.c_str()) {}
+
+        operator const wchar_t*() const { return cstr; }
+
+        const wchar_t* c_str() const { return cstr; }
+
+    private:
+        const wchar_t* cstr;
+    };
+
+    inline const wchar_t* to_wprintf_arg(const cwstring_view spec) { return spec.c_str(); }
+
+    static_assert(sizeof(cstring_view) == sizeof(void*), "cstring_view must be a simple wrapper around char*");
+    static_assert(sizeof(cwstring_view) == sizeof(void*), "cwstring_view must be a simple wrapper around wchar_t*");
+}