pkgs/gcc/patches/gcc46-Woverlength-string.patch0

   1 2011-01-18  Tom Tromey  <tromey@redhat.com>
   2
   3         * c-parser.c (disable_extension_diagnostics): Save
   4         warn_overlength_strings.
   5         (restore_extension_diagnostics): Restore warn_overlength_strings.
   6
   7         * gcc.dg/Woverlength-strings-pedantic-c89-ext.c: New file.
   8         * gcc.dg/Woverlength-strings-pedantic-c90-ext.c: New file.
   9         * gcc.dg/Woverlength-strings-pedantic-c99-ext.c: New file.
  10
  11 --- gcc/c-parser.c      (revision 168933)
  12 +++ gcc/c-parser.c      (working copy)
  13 @@ -1045,13 +1045,15 @@
  14              | (warn_traditional << 2)
  15              | (flag_iso << 3)
  16              | (warn_long_long << 4)
  17 -            | (warn_cxx_compat << 5));
  18 +            | (warn_cxx_compat << 5)
  19 +            | (warn_overlength_strings << 6));
  20    cpp_opts->cpp_pedantic = pedantic = 0;
  21    warn_pointer_arith = 0;
  22    cpp_opts->cpp_warn_traditional = warn_traditional = 0;
  23    flag_iso = 0;
  24    cpp_opts->cpp_warn_long_long = warn_long_long = 0;
  25    warn_cxx_compat = 0;
  26 +  warn_overlength_strings = 0;
  27    return ret;
  28  }
  29
  30 @@ -1067,6 +1069,7 @@
  31    flag_iso = (flags >> 3) & 1;
  32    cpp_opts->cpp_warn_long_long = warn_long_long = (flags >> 4) & 1;
  33    warn_cxx_compat = (flags >> 5) & 1;
  34 +  warn_overlength_strings = (flags >> 6) & 1;
  35  }
  36
  37  /* Possibly kinds of declarator to parse.  */
  38 --- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c89-ext.c (revision 0)
  39 +++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c89-ext.c (revision 0)
  40 @@ -0,0 +1,19 @@
  41 +/* -Woverlength-strings complains about string constants which are too long
  42 +   for the C standard's "minimum maximum" limits.  It is off by default,
  43 +   but implied by -pedantic.  */
  44 +
  45 +/* { dg-options "-std=c89 -pedantic" } */
  46 +
  47 +#define TEN "xxxxxxxxxx"
  48 +#define HUN TEN TEN TEN TEN TEN  TEN TEN TEN TEN TEN
  49 +#define THO HUN HUN HUN HUN HUN  HUN HUN HUN HUN HUN
  50 +
  51 +/* C89's minimum-maximum is 509. */
  52 +const char x510[] = __extension__ HUN HUN HUN HUN HUN TEN;
  53 +
  54 +/* C99's minimum-maximum is 4095.  */
  55 +const char x4096[] = __extension__
  56 +  THO THO THO THO     /* 4000 */
  57 +  TEN TEN TEN TEN TEN /* 4050 */
  58 +  TEN TEN TEN TEN     /* 4090 */
  59 +  "123456";
  60 --- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c90-ext.c (revision 0)
  61 +++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c90-ext.c (revision 0)
  62 @@ -0,0 +1,19 @@
  63 +/* -Woverlength-strings complains about string constants which are too long
  64 +   for the C standard's "minimum maximum" limits.  It is off by default,
  65 +   but implied by -pedantic.  */
  66 +
  67 +/* { dg-options "-std=c90 -pedantic" } */
  68 +
  69 +#define TEN "xxxxxxxxxx"
  70 +#define HUN TEN TEN TEN TEN TEN  TEN TEN TEN TEN TEN
  71 +#define THO HUN HUN HUN HUN HUN  HUN HUN HUN HUN HUN
  72 +
  73 +/* C89's minimum-maximum is 509. */
  74 +const char x510[] = __extension__ HUN HUN HUN HUN HUN TEN;
  75 +
  76 +/* C99's minimum-maximum is 4095.  */
  77 +const char x4096[] = __extension__
  78 +  THO THO THO THO     /* 4000 */
  79 +  TEN TEN TEN TEN TEN /* 4050 */
  80 +  TEN TEN TEN TEN     /* 4090 */
  81 +  "123456";
  82 --- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c99-ext.c (revision 0)
  83 +++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c99-ext.c (revision 0)
  84 @@ -0,0 +1,19 @@
  85 +/* -Woverlength-strings complains about string constants which are too long
  86 +   for the C standard's "minimum maximum" limits.  It is off by default,
  87 +   but implied by -pedantic.  */
  88 +
  89 +/* { dg-options "-std=c99 -pedantic" } */
  90 +
  91 +#define TEN "xxxxxxxxxx"
  92 +#define HUN TEN TEN TEN TEN TEN  TEN TEN TEN TEN TEN
  93 +#define THO HUN HUN HUN HUN HUN  HUN HUN HUN HUN HUN
  94 +
  95 +/* C89's minimum-maximum is 509. */
  96 +const char x510[] = HUN HUN HUN HUN HUN TEN;
  97 +
  98 +/* C99's minimum-maximum is 4095.  */
  99 +const char x4096[] = __extension__
 100 +  THO THO THO THO     /* 4000 */
 101 +  TEN TEN TEN TEN TEN /* 4050 */
 102 +  TEN TEN TEN TEN     /* 4090 */
 103 +  "123456";