X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flibpspp%2Fhash-functions.h;h=6fb339be31acd8dbaf841178658cfc2448629a27;hb=0891406f7c1039af8c769b8069691246566fd894;hp=f792ba2a96eb50b079f1acec0414d9dbfd19f7ea;hpb=23fd25fa0a2fb9d613f4f9445000e49cc3b83db1;p=pspp

diff --git a/src/libpspp/hash-functions.h b/src/libpspp/hash-functions.h
index f792ba2a96..6fb339be31 100644
--- a/src/libpspp/hash-functions.h
+++ b/src/libpspp/hash-functions.h
@@ -17,12 +17,13 @@
 #ifndef LIBPSPP_HASH_FUNCTIONS_H
 #define LIBPSPP_HASH_FUNCTIONS_H 1
 
+#include "libpspp/compiler.h"
 #include <stddef.h>
 
-unsigned int hash_bytes (const void *, size_t, unsigned int basis);
-unsigned int hash_string (const char *, unsigned int basis);
-unsigned int hash_int (int, unsigned int basis);
-unsigned int hash_double (double, unsigned int basis);
-unsigned int hash_pointer (const void *, unsigned int basis);
+unsigned int hash_bytes (const void *, size_t, unsigned int basis) WARN_UNUSED_RESULT;
+unsigned int hash_string (const char *, unsigned int basis) WARN_UNUSED_RESULT;
+unsigned int hash_int (int, unsigned int basis) WARN_UNUSED_RESULT;
+unsigned int hash_double (double, unsigned int basis) WARN_UNUSED_RESULT;
+unsigned int hash_pointer (const void *, unsigned int basis) WARN_UNUSED_RESULT;
 
 #endif /* libpspp/hash-functions.h */