clang/test/Lexer/size_t-literal.cpp

   1 // RUN: %clang_cc1 -std=c++23 -fsyntax-only -verify %s
   2
   3 #if 1z != 1
   4 #error "z suffix must be recognized by preprocessor"
   5 #endif
   6 #if 1uz != 1
   7 #error "uz suffix must be recognized by preprocessor"
   8 #endif
   9 #if !(-1z < 0)
  10 #error "z suffix must be interpreted as signed"
  11 #endif
  12 #if !(-1uz > 0)
  13 #error "uz suffix must be interpreted as unsigned"
  14 #endif
  15
  16 void ValidSuffix() {
  17   // Decimal literals.
  18   {
  19     auto a1 = 1z;
  20     auto a2 = 1Z;
  21
  22     auto a3 = 1uz;
  23     auto a4 = 1uZ;
  24     auto a5 = 1Uz;
  25     auto a6 = 1UZ;
  26
  27     auto a7 = 1zu;
  28     auto a8 = 1Zu;
  29     auto a9 = 1zU;
  30     auto a10 = 1ZU;
  31
  32     auto a11 = 1'2z;
  33     auto a12 = 1'2Z;
  34   }
  35   // Hexadecimal literals.
  36   {
  37     auto a1 = 0x1z;
  38     auto a2 = 0x1Z;
  39
  40     auto a3 = 0x1uz;
  41     auto a4 = 0x1uZ;
  42     auto a5 = 0x1Uz;
  43     auto a6 = 0x1UZ;
  44
  45     auto a7 = 0x1zu;
  46     auto a8 = 0x1Zu;
  47     auto a9 = 0x1zU;
  48     auto a10 = 0x1ZU;
  49
  50     auto a11 = 0x1'2z;
  51     auto a12 = 0x1'2Z;
  52   }
  53   // Binary literals.
  54   {
  55     auto a1 = 0b1z;
  56     auto a2 = 0b1Z;
  57
  58     auto a3 = 0b1uz;
  59     auto a4 = 0b1uZ;
  60     auto a5 = 0b1Uz;
  61     auto a6 = 0b1UZ;
  62
  63     auto a7 = 0b1zu;
  64     auto a8 = 0b1Zu;
  65     auto a9 = 0b1zU;
  66     auto a10 = 0b1ZU;
  67
  68     auto a11 = 0b1'1z;
  69     auto a12 = 0b1'1Z;
  70   }
  71   // Octal literals.
  72   {
  73     auto a1 = 01z;
  74     auto a2 = 01Z;
  75
  76     auto a3 = 01uz;
  77     auto a4 = 01uZ;
  78     auto a5 = 01Uz;
  79     auto a6 = 01UZ;
  80
  81     auto a7 = 01zu;
  82     auto a8 = 01Zu;
  83     auto a9 = 01zU;
  84     auto a10 = 01ZU;
  85
  86     auto a11 = 0'1z;
  87     auto a12 = 0'1Z;
  88   }
  89 }
  90
  91 void InvalidSuffix() {
  92   // Long.
  93   {
  94     auto a1 = 1lz; // expected-error {{invalid suffix}}
  95     auto a2 = 1lZ; // expected-error {{invalid suffix}}
  96     auto a3 = 1Lz; // expected-error {{invalid suffix}}
  97     auto a4 = 1LZ; // expected-error {{invalid suffix}}
  98
  99     auto a5 = 1zl; // expected-error {{invalid suffix}}
 100     auto a6 = 1Zl; // expected-error {{invalid suffix}}
 101     auto a7 = 1zL; // expected-error {{invalid suffix}}
 102     auto a8 = 1ZL; // expected-error {{invalid suffix}}
 103
 104     auto a9 = 1ulz;  // expected-error {{invalid suffix}}
 105     auto a10 = 1ulZ; // expected-error {{invalid suffix}}
 106     auto a11 = 1uLz; // expected-error {{invalid suffix}}
 107     auto a12 = 1uLZ; // expected-error {{invalid suffix}}
 108
 109     auto a13 = 1uzl; // expected-error {{invalid suffix}}
 110     auto a14 = 1uZl; // expected-error {{invalid suffix}}
 111     auto a15 = 1uzL; // expected-error {{invalid suffix}}
 112     auto a16 = 1uZL; // expected-error {{invalid suffix}}
 113   }
 114   // Long long.
 115   {
 116     auto a1 = 1llz; // expected-error {{invalid suffix}}
 117     auto a2 = 1llZ; // expected-error {{invalid suffix}}
 118     auto a3 = 1LLz; // expected-error {{invalid suffix}}
 119     auto a4 = 1LLZ; // expected-error {{invalid suffix}}
 120
 121     auto a5 = 1zll; // expected-error {{invalid suffix}}
 122     auto a6 = 1Zll; // expected-error {{invalid suffix}}
 123     auto a7 = 1zLL; // expected-error {{invalid suffix}}
 124     auto a8 = 1ZLL; // expected-error {{invalid suffix}}
 125
 126     auto a9 = 1ullz;  // expected-error {{invalid suffix}}
 127     auto a10 = 1ullZ; // expected-error {{invalid suffix}}
 128     auto a11 = 1uLLz; // expected-error {{invalid suffix}}
 129     auto a12 = 1uLLZ; // expected-error {{invalid suffix}}
 130
 131     auto a13 = 1uzll; // expected-error {{invalid suffix}}
 132     auto a14 = 1uZll; // expected-error {{invalid suffix}}
 133     auto a15 = 1uzLL; // expected-error {{invalid suffix}}
 134     auto a16 = 1uZLL; // expected-error {{invalid suffix}}
 135   }
 136   // Floating point.
 137   {
 138     auto a1 = 0.1z;   // expected-error {{invalid suffix}}
 139     auto a2 = 0.1Z;   // expected-error {{invalid suffix}}
 140     auto a3 = 0.1uz;  // expected-error {{invalid suffix}}
 141     auto a4 = 0.1uZ;  // expected-error {{invalid suffix}}
 142     auto a5 = 0.1Uz;  // expected-error {{invalid suffix}}
 143     auto a6 = 0.1UZ;  // expected-error {{invalid suffix}}
 144     auto a7 = 0.1zu;  // expected-error {{invalid suffix}}
 145     auto a8 = 0.1Zu;  // expected-error {{invalid suffix}}
 146     auto a9 = 0.1zU;  // expected-error {{invalid suffix}}
 147     auto a10 = 0.1ZU; // expected-error {{invalid suffix}}
 148
 149     auto a11 = 0.1fz;   // expected-error {{invalid suffix}}
 150     auto a12 = 0.1fZ;   // expected-error {{invalid suffix}}
 151     auto a13 = 0.1fuz;  // expected-error {{invalid suffix}}
 152     auto a14 = 0.1fuZ;  // expected-error {{invalid suffix}}
 153     auto a15 = 0.1fUz;  // expected-error {{invalid suffix}}
 154     auto a16 = 0.1fUZ;  // expected-error {{invalid suffix}}
 155     auto a17 = 0.1fzu;  // expected-error {{invalid suffix}}
 156     auto a18 = 0.1fZu;  // expected-error {{invalid suffix}}
 157     auto a19 = 0.1fzU;  // expected-error {{invalid suffix}}
 158     auto a110 = 0.1fZU; // expected-error {{invalid suffix}}
 159   }
 160   // Repetitive suffix.
 161   {
 162     auto a1 = 1zz; // expected-error {{invalid suffix}}
 163     auto a2 = 1zZ; // expected-error {{invalid suffix}}
 164     auto a3 = 1Zz; // expected-error {{invalid suffix}}
 165     auto a4 = 1ZZ; // expected-error {{invalid suffix}}
 166   }
 167 }