8sa1-gcc/gcc/testsuite/gcc.dg/cpp/digraphs.c
Joseph Myers f43b27955c c-decl.c (grokdeclarator): In C99 mode...
* c-decl.c (grokdeclarator): In C99 mode, give the more specific
	"return type defaults" warning for functions with return type
	defaulting to int.
	* c-lang.c (c_init): In C99 mode, enable warnings for implicit
	function declarations by default rather than only when pedantic.

testsuite:
	* gcc.dg/c99-impl-int-1.c: Use stricter error string for implicit
	return type.
	* gcc.dg/cpp/digraphs.c: Declare puts.

From-SVN: r39608
2001-02-12 17:31:42 +00:00

32 lines
935 B
C

/* Copyright (C) 2000 Free Software Foundation, Inc. */
/* { dg-do run } */
/* { dg-options "-std=c99" } */
/* Fully test the 6 digraphs under c99 assumptions. Four are pasted,
to check that digraph pasting works. */
extern int strcmp (const char *, const char *);
extern void abort (void);
extern int puts (const char *);
#define err(str) do { puts(str); abort(); } while (0)
%:define glue(x, y) x %:%: y /* #define glue(x, y) x ## y. */
#ifndef glue
#error glue not defined!
#endif
%:define str(x) %:x /* #define str(x) #x */
int main (int argc, char *argv<::>) /* argv[] */
glue (<, %) /* { */
/* di_str[] = */
const char di_str glue(<, :)glue(:, >) = str(%:%:<::><%%>%:);
/* Check the glue macro actually pastes, and that the spelling of
all digraphs is preserved. */
if (glue(str, cmp) (di_str, "%:%:<::><%%>%:"))
err ("Digraph spelling not preserved!");
return 0;
glue (%, >) /* } */