sdcc/support/regression/tests/bitintconst.c.in

   1 /** integer constants of bit-precise integer types
   2
   3     width: 2, 4, 6, 7, 8, 9, 15, 16, 17, 24, 32, 33, 40, 48, 63, 64, 65
   4 */
   5
   6 #include <testfwk.h>
   7
   8 #pragma disable_warning 264
   9 #pragma disable_warning 273
  10
  11 #include <limits.h>
  12
  13 // clang 11 supports bit-precise types, but deviates a bit from C23.
  14 #if __clang_major__ == 11
  15 #define __SDCC_BITINT_MAXWIDTH 128
  16 #define _BitInt _ExtInt
  17 #endif
  18
  19 #if __SDCC_BITINT_MAXWIDTH >= {width} // TODO: When we can regression-test in --std-c23 mode, use the standard macro from limits.h instead!
  20
  21 typedef unsigned _BitInt({width}) bitinttype;
  22
  23 volatile bitinttype i = 0x01wb;
  24 volatile bitinttype j = 0x0'1'0wb;
  25 volatile bitinttype k = 0b1wb;
  26 volatile bitinttype l = 0x01wbu;
  27 volatile bitinttype m = 0x0'1'0wbu;
  28 volatile bitinttype n = 0b1uwb;
  29
  30 #endif
  31
  32 void testBitInt(void)
  33 {
  34 #if __SDCC_BITINT_MAXWIDTH >= {width}
  35         ASSERT(i == 0x01wb);
  36         ASSERT(j == (bitinttype)0x0'1'0wb);
  37         ASSERT(k == 0b1wb);
  38         ASSERT(l == 0x01uwb);
  39         ASSERT(m == (bitinttype)0x0'1'0wbu);
  40         ASSERT(n == 0b1wbu);
  41 #endif
  42 }
  43