6879689: Fix warning about ignored return value when compiling with -O2
Summary: Store the return value of fwrite and check it matches the size of the array.
Reviewed-by: twisti, dholmes
--- a/hotspot/src/share/vm/adlc/archDesc.cpp Mon Aug 17 15:03:39 2009 -0700
+++ b/hotspot/src/share/vm/adlc/archDesc.cpp Tue Sep 08 09:01:16 2009 +0100
@@ -1031,7 +1031,8 @@
//---------------------------addSUNcopyright-------------------------------
// output SUN copyright info
void ArchDesc::addSunCopyright(char* legal, int size, FILE *fp) {
- fwrite(legal, size, 1, fp);
+ size_t count = fwrite(legal, 1, size, fp);
+ assert(count == (size_t) size, "copyright info truncated");
fprintf(fp,"\n");
fprintf(fp,"// Machine Generated File. Do Not Edit!\n");
fprintf(fp,"\n");