Implement compiler guessing, including icc and msvc

1 files changed, 29 insertions, 0 deletions

diff --git a/build2/utility.ixx b/build2/utility.ixx
index 04ba9f5..596eb78 100644
--- a/build2/utility.ixx
+++ b/build2/utility.ixx
@@ -4,6 +4,35 @@
 
 namespace build2
 {
+  inline size_t
+  next_word (const string& s, size_t& b, size_t& e, char d1, char d2)
+  {
+    return next_word (s, s.size (), b, e, d1, d2);
+  }
+
+  inline size_t
+  next_word (const string& s, size_t n, size_t& b, size_t& e, char d1, char d2)
+  {
+    if (b != e)
+      b = e;
+
+    // Skip leading delimiters.
+    //
+    for (; b != n && (s[b] == d1 || s[b] == d2); ++b) ;
+
+    if (b == n)
+    {
+      e = n;
+      return 0;
+    }
+
+    // Find first trailing delimiter.
+    //
+    for (e = b + 1; e != n && s[e] != d1 && s[e] != d2; ++e) ;
+
+    return e - b;
+  }
+
   template <typename T>
   inline void
   append_options (cstrings& args, T& s, const char* var)