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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/cpp/charconst-3.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/cpp/charconst-3.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/cpp/charconst-3.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/charconst-3.c b/gcc/testsuite/gcc.dg/cpp/charconst-3.c new file mode 100644 index 000000000..7c1966391 --- /dev/null +++ b/gcc/testsuite/gcc.dg/cpp/charconst-3.c @@ -0,0 +1,50 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. */ + +/* { dg-do run } */ +/* { dg-options -Wno-multichar } */ + +/* This tests values and signedness of multichar charconsts. + + Neil Booth, 5 May 2002. */ + +#include <limits.h> + +extern void abort (void); + +int main () +{ + /* These tests require at least 2-byte ints. 8-) */ +#if INT_MAX > 127 + int scale = (int) (unsigned char) -1 + 1; + + if ('ab' != (int) ((unsigned char) 'a' * scale + (unsigned char) 'b')) + abort (); + + if ('\234b' != (int) ((unsigned char) '\234' * scale + (unsigned char) 'b')) + abort (); + + if ('b\234' != (int) ((unsigned char) 'b' * scale + (unsigned char) '\234')) + abort (); + /* Multichar charconsts have type int and should be signed. */ +#if INT_MAX == 32767 +# if '\234a' > 0 +# error Preprocessor charconsts 1 +# endif + if ('\234a' > 0) + abort (); +#elif INT_MAX == 2147483647 +# if '\234aaa' > 0 +# error Preprocessor charconsts 2 +# endif + if ('\234aaa' > 0) + abort (); +#elif INT_MAX == 9223372036854775807 +# if '\234aaaaaaa' > 0 +# error Preprocessor charconsts 3 +# endif + if ('\234aaaaaaa' > 0) + abort (); +#endif +#endif + return 0; +} |