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
40 lines
1.3 KiB
C
40 lines
1.3 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 escape sequences, 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 '\x' /* { dg-error "no following" "\x with no digits" } */
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#endif
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#if '\x400' /* { dg-warning "out of range" "\x out of range" } */
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#endif
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#if '\x0ff' /* { dg-bogus "out of range" "\x out of range" } */
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#endif
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#if '\400' /* { dg-warning "out of range" "\x out of range" } */
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#endif
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#if '\377' /* { dg-bogus "out of range" "bogus \x out of range" } */
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#endif
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#if '\177' != 0x7f /* { dg-bogus "out of range" "bogus \x out of range" } */
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#error bad octal /* { dg-bogus "bad" "bad octal evaluation" } */
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#endif
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#if '\0377' /* { dg-warning "multi" "too long octal" } */
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#endif
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#if '\p' /* { dg-error "unknown escape" "unknown escape seq" } */
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#endif
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void foo ()
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{
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int c;
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c = '\x'; /* { dg-error "no following" "\x with no digits" } */
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c = '\x100'; /* { dg-warning "out of range" "\x out of range" } */
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c = '\x0ff'; /* { dg-bogus "out of range" "\x out of range" } */
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c = '\400'; /* { dg-warning "out of range" "\x out of range" } */
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c = '\377'; /* { dg-bogus "out of range" "bogus \x out of range" } */
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c = '\0377'; /* { dg-warning "multi" "too long octal" } */
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c = '\p'; /* { dg-error "unknown escape" "unknown escape seq" } */
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}
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