f43b27955c
* 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
32 lines
935 B
C
32 lines
935 B
C
/* Copyright (C) 2000 Free Software Foundation, Inc. */
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/* { dg-do run } */
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/* { dg-options "-std=c99" } */
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/* Fully test the 6 digraphs under c99 assumptions. Four are pasted,
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to check that digraph pasting works. */
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extern int strcmp (const char *, const char *);
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extern void abort (void);
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extern int puts (const char *);
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#define err(str) do { puts(str); abort(); } while (0)
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%:define glue(x, y) x %:%: y /* #define glue(x, y) x ## y. */
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#ifndef glue
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#error glue not defined!
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#endif
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%:define str(x) %:x /* #define str(x) #x */
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int main (int argc, char *argv<::>) /* argv[] */
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glue (<, %) /* { */
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/* di_str[] = */
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const char di_str glue(<, :)glue(:, >) = str(%:%:<::><%%>%:);
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/* Check the glue macro actually pastes, and that the spelling of
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all digraphs is preserved. */
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if (glue(str, cmp) (di_str, "%:%:<::><%%>%:"))
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err ("Digraph spelling not preserved!");
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return 0;
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glue (%, >) /* } */
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