Changes in src/Common/SemanticError.cc [a16764a6:244b934]

File:

• src/Common/SemanticError.cc (modified) (2 diffs)

src/Common/SemanticError.cc

@@ -14 +14 @@
 //
 
+#include <cstdarg>
 #include <cstdio>                                                                               // for fileno, stderr
 #include <unistd.h>                                                                             // for isatty
@@ -50 +51 @@
 }
 
-void SemanticWarningImpl( CodeLocation location, std::string msg ) {
+namespace {
+        // convert format string and arguments into a single string
+        std::string fmtToString(const char * fmt, va_list ap) {
+                int size = 128;
+                while ( true ) {
+                        char buf[size];
+                        va_list args;
+                        va_copy( args, ap );
+                        int n = vsnprintf(&buf[0], size, fmt, args);
+                        va_end( args );
+                        if ( n < size && n >= 0 ) return buf;
+                        size *= 2;
+                }
+                assert( false );
+        }
+}
+
+void SemanticWarningImpl( CodeLocation location, Warning, const char * const fmt, ... ) {
+        va_list args;
+        va_start(args, fmt);
+        std::string msg = fmtToString( fmt, args );
+        va_end(args);
         std::cerr << ErrorHelpers::bold() << location << ErrorHelpers::warning_str() << ErrorHelpers::reset_font() << msg << std::endl;
 }