f8710242d3
* 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
34 lines
1.0 KiB
C
34 lines
1.0 KiB
C
/* Copyright (C) 2001 Free Software Foundation, Inc. */
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/* { dg-do compile } */
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/* This tests various diagnostics about character constants, for both
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the preprocessor and the compiler.
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Neil Booth, 22 May 2001. */
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#if '' /* { dg-warning "empty" "empty charconst" } */
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#endif
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#if L'' /* { dg-warning "empty" "empty wide charconst" } */
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#endif
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#if 'very long' /* { dg-warning "too long" "long charconst" } */
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#endif
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#if L'very long' /* { dg-warning "too long" "long wide charconst" } */
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#endif
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/* Don't do this test for L'ab'; it depends upon sizeof (wchar_t). */
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#if 'ab' /* { dg-warning "multi-char" "multi-character" } */
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#endif
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void foo ()
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{
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int c = ''; /* { dg-warning "empty" "empty charconst" } */
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c = L''; /* { dg-warning "empty" "empty wide charconst" } */
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c = 'very long'; /* { dg-warning "too long" "long charconst" } */
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c = L'very long'; /* { dg-warning "too long" "long wide charconst" } */
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/* Don't do this test for L'ab'; it depends upon sizeof (wchar_t). */
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c = 'ab'; /* { dg-warning "multi-char" "multi-character" } */
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}
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