8sa1-gcc/gcc/testsuite/gcc.dg/cpp/charconst.c
Neil Booth f8710242d3 cpp.texi: Update for handling of charconsts.
* cpp.texi: Update for handling of charconsts.
	* cpplex.c (maybe_read_ucs): Don't accept D800-DFFF.  Update
	diagnostics.  Skip to the end if the UCS is too short.
	(cpp_interpret_charconst): Long charconsts issue a warning
	not an error.

	* gcc.dg/cpp/charconst.c: New tests.
	* gcc.dg/cpp/escape.c: New tests.
	* gcc.dg/cpp/escape-1.c: New tests.
	* gcc.dg/cpp/escape-2.c: New tests.
	* gcc.dg/cpp/ucs.c: New tests.

From-SVN: r42514
2001-05-23 22:50:28 +00:00

34 lines
1.0 KiB
C

/* Copyright (C) 2001 Free Software Foundation, Inc. */
/* { dg-do compile } */
/* This tests various diagnostics about character constants, for both
the preprocessor and the compiler.
Neil Booth, 22 May 2001. */
#if '' /* { dg-warning "empty" "empty charconst" } */
#endif
#if L'' /* { dg-warning "empty" "empty wide charconst" } */
#endif
#if 'very long' /* { dg-warning "too long" "long charconst" } */
#endif
#if L'very long' /* { dg-warning "too long" "long wide charconst" } */
#endif
/* Don't do this test for L'ab'; it depends upon sizeof (wchar_t). */
#if 'ab' /* { dg-warning "multi-char" "multi-character" } */
#endif
void foo ()
{
int c = ''; /* { dg-warning "empty" "empty charconst" } */
c = L''; /* { dg-warning "empty" "empty wide charconst" } */
c = 'very long'; /* { dg-warning "too long" "long charconst" } */
c = L'very long'; /* { dg-warning "too long" "long wide charconst" } */
/* Don't do this test for L'ab'; it depends upon sizeof (wchar_t). */
c = 'ab'; /* { dg-warning "multi-char" "multi-character" } */
}