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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [cpp/] [charconst-3.c] - Rev 298
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/* 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; }