X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fobstack%2Fobstack_printf.c;h=a270fea800623ff41b1866675aab28eb135fca10;hb=9b093e4573159587f5d62b0222920febb49e3ed7;hp=a8b5a98b0120be580931395e12309fe72498c4a9;hpb=bb6d574bb9c74fca9f205b94aef021e57832aaad;p=libfirm

diff --git a/ir/obstack/obstack_printf.c b/ir/obstack/obstack_printf.c
index a8b5a98b0..a270fea80 100644
--- a/ir/obstack/obstack_printf.c
+++ b/ir/obstack/obstack_printf.c
@@ -1,3 +1,4 @@
+#include <config.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -5,10 +6,16 @@
 #include "obstack.h"
 
 #ifdef _WIN32
-#define vsnprintf _vsnprintf
-#endif
-
-int obstack_vprintf(struct obstack *obst, const char *fmt, va_list ap)
+/* win32/C89 has no va_copy function... so we have to use the stupid fixed-length version */
+int obstack_vprintf(struct obstack *obst, const char *fmt, va_list ap) FIRM_NOTHROW
+{
+	char buf[16384];
+	int len = _vsnprintf(buf, sizeof(buf), fmt, ap);
+	obstack_grow(obst, buf, len);
+	return len;
+}
+#else
+int obstack_vprintf(struct obstack *obst, const char *fmt, va_list ap) FIRM_NOTHROW
 {
 	char    buf[128];
 	char   *buffer = buf;
@@ -16,7 +23,9 @@ int obstack_vprintf(struct obstack *obst, const char *fmt, va_list ap)
 	int     len;
 
 	for (;;) {
-		len = vsnprintf(buffer, sizeof(buffer), fmt, ap);
+		va_list tap;
+		va_copy(tap, ap);
+		len = vsnprintf(buffer, size, fmt, tap);
 
 		/* snprintf should return -1 only in the error case, but older glibcs
 		 * and probably other systems are buggy in this respect and return -1 if
@@ -35,7 +44,7 @@ int obstack_vprintf(struct obstack *obst, const char *fmt, va_list ap)
 		} else {
 			break;
 		}
-		buffer = malloc(size);
+		buffer = (char*)malloc(size);
 	}
 
 	obstack_grow(obst, buffer, len);
@@ -44,8 +53,9 @@ int obstack_vprintf(struct obstack *obst, const char *fmt, va_list ap)
 
 	return len;
 }
+#endif
 
-int obstack_printf(struct obstack *obst, const char *fmt, ...)
+int obstack_printf(struct obstack *obst, const char *fmt, ...) FIRM_NOTHROW
 {
 	va_list ap;
 	int     res;