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/* Copyright (C) 2000 Free Software Foundation, Inc.  */

/* { dg-do run } */

/* { dg-options "-trigraphs" } */

/* Test lexing of strings and character constants.  */

#ifndef __WCHAR_TYPE__

#define __WCHAR_TYPE__ int

#endif

typedef __WCHAR_TYPE__ wchar_t;

extern int strcmp (const char *, const char *);

extern int puts (const char *);

extern void abort (void);

#define err(str) do { puts(str); abort(); } while (0)

/* Escaped newlines.  */

const char *str1 = "s\

t\

\

r??/

  1";

const char x = '\

??/

b';

/* Test escaped terminators.  */

const char *term = "\"\\\"\\";

const char termc = '\'';

const char *terms = "'";

/* Test wide strings and chars are lexed.  */

const wchar_t wchar = L'w';

const wchar_t* wstring = L"wide string";

/* Test all 9 trigraphs embedded in a string.  Test trigraphs do not

   survive an embedded backslash newline.  Test trigraphs preceded by

   a '?' are still noticed.  */

const char *t = "??/\??<??>??=??)??\

(??(??!??'??-???=???/

?-";

int main (int argc, char *argv[])

{

  if (strcmp (str1, "str  1"))

    err ("str1");

  if (x != 'b')

    err ("b");

  /* We have to split the string up to avoid trigraph replacement

     here.  Split the 2 trigraphs after both 1 and 2 ?s; just doing

     this exposed a bug in the initial release of the tokenized lexer.  */

  if (strcmp (t, "\\{}#]?" "?([|^~?#??" "-"))

    err ("Embedded trigraphs");

  if (term[0] != '"' || term[1] != '\\' || term[2] != '"'

      || term[3] != '\\' || term[4] != '\0')

    err ("Escaped string terminators");

  if (termc != terms[0])

    err ("Escaped character constant terminator");

  return 0;

}