[Bug testsuite/108161] New: gcc.dg/ipa/pr96040.c fails with incorrect size_t assumption (snprintf, strspn)

[nightstrike at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108161

            Bug ID: 108161
           Summary: gcc.dg/ipa/pr96040.c fails with incorrect size_t
                    assumption (snprintf, strspn)
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nightstrike at gmail dot com
  Target Milestone: ---

gcc.dg/ipa/pr96040.c assumes that size_t is unsigned long, which it isn't for
LLP64.  The following definitions are therefor incorrect:

int snprintf(char *, unsigned long, const char *, ...);
unsigned long strspn(const char *, const char *);


Changing "unsigned long" in both instances to "__SIZE_TYPE__" makes the test
pass:

int snprintf(char *, __SIZE_TYPE__, const char *, ...);
__SIZE_TYPE__ strspn(const char *, const char *);


However, it's also possible, and perhaps more maintainable, to just use
__builtin_*, or to include <stdio.h> and <string.h>.  Both of the following
options work, though there are many ways to skin this cat:



diff --git a/gcc/testsuite/gcc.dg/ipa/pr96040.c
b/gcc/testsuite/gcc.dg/ipa/pr96040.c
index af7e9c4ed94..9c9b76269a6 100644
--- a/gcc/testsuite/gcc.dg/ipa/pr96040.c
+++ b/gcc/testsuite/gcc.dg/ipa/pr96040.c
@@ -3,8 +3,8 @@


 int puts(const char *);
-int snprintf(char *, unsigned long, const char *, ...);
-unsigned long strspn(const char *, const char *);
+int snprintf(char *, __SIZE_TYPE__, const char *, ...);
+__SIZE_TYPE__ strspn(const char *, const char *);

 struct TValue {
   union {



diff --git a/gcc/testsuite/gcc.dg/ipa/pr96040.c
b/gcc/testsuite/gcc.dg/ipa/pr96040.c
index af7e9c4ed94..2c8d405ff9b 100644
--- a/gcc/testsuite/gcc.dg/ipa/pr96040.c
+++ b/gcc/testsuite/gcc.dg/ipa/pr96040.c
@@ -3,8 +3,8 @@


 int puts(const char *);
-int snprintf(char *, unsigned long, const char *, ...);
-unsigned long strspn(const char *, const char *);
+#define snprintf __builtin_snprintf
+#define strspn __builtin_strspn

 struct TValue {
   union {