104 lines
3.6 KiB
Diff
104 lines
3.6 KiB
Diff
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2011-01-18 Tom Tromey <tromey@redhat.com>
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* c-parser.c (disable_extension_diagnostics): Save
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warn_overlength_strings.
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(restore_extension_diagnostics): Restore warn_overlength_strings.
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* gcc.dg/Woverlength-strings-pedantic-c89-ext.c: New file.
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* gcc.dg/Woverlength-strings-pedantic-c90-ext.c: New file.
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* gcc.dg/Woverlength-strings-pedantic-c99-ext.c: New file.
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--- gcc/c-parser.c (revision 168933)
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+++ gcc/c-parser.c (working copy)
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@@ -1045,13 +1045,15 @@
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| (warn_traditional << 2)
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| (flag_iso << 3)
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| (warn_long_long << 4)
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- | (warn_cxx_compat << 5));
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+ | (warn_cxx_compat << 5)
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+ | (warn_overlength_strings << 6));
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cpp_opts->cpp_pedantic = pedantic = 0;
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warn_pointer_arith = 0;
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cpp_opts->cpp_warn_traditional = warn_traditional = 0;
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flag_iso = 0;
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cpp_opts->cpp_warn_long_long = warn_long_long = 0;
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warn_cxx_compat = 0;
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+ warn_overlength_strings = 0;
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return ret;
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}
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@@ -1067,6 +1069,7 @@
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flag_iso = (flags >> 3) & 1;
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cpp_opts->cpp_warn_long_long = warn_long_long = (flags >> 4) & 1;
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warn_cxx_compat = (flags >> 5) & 1;
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+ warn_overlength_strings = (flags >> 6) & 1;
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}
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/* Possibly kinds of declarator to parse. */
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--- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c89-ext.c (revision 0)
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+++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c89-ext.c (revision 0)
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@@ -0,0 +1,19 @@
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+/* -Woverlength-strings complains about string constants which are too long
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+ for the C standard's "minimum maximum" limits. It is off by default,
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+ but implied by -pedantic. */
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+
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+/* { dg-options "-std=c89 -pedantic" } */
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+
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+#define TEN "xxxxxxxxxx"
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+#define HUN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN
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+#define THO HUN HUN HUN HUN HUN HUN HUN HUN HUN HUN
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+
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+/* C89's minimum-maximum is 509. */
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+const char x510[] = __extension__ HUN HUN HUN HUN HUN TEN;
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+
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+/* C99's minimum-maximum is 4095. */
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+const char x4096[] = __extension__
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+ THO THO THO THO /* 4000 */
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+ TEN TEN TEN TEN TEN /* 4050 */
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+ TEN TEN TEN TEN /* 4090 */
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+ "123456";
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--- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c90-ext.c (revision 0)
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+++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c90-ext.c (revision 0)
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@@ -0,0 +1,19 @@
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+/* -Woverlength-strings complains about string constants which are too long
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+ for the C standard's "minimum maximum" limits. It is off by default,
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+ but implied by -pedantic. */
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+
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+/* { dg-options "-std=c90 -pedantic" } */
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+
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+#define TEN "xxxxxxxxxx"
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+#define HUN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN
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+#define THO HUN HUN HUN HUN HUN HUN HUN HUN HUN HUN
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+
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+/* C89's minimum-maximum is 509. */
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+const char x510[] = __extension__ HUN HUN HUN HUN HUN TEN;
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+
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+/* C99's minimum-maximum is 4095. */
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+const char x4096[] = __extension__
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+ THO THO THO THO /* 4000 */
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+ TEN TEN TEN TEN TEN /* 4050 */
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+ TEN TEN TEN TEN /* 4090 */
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+ "123456";
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--- gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c99-ext.c (revision 0)
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+++ gcc/testsuite/gcc.dg/Woverlength-strings-pedantic-c99-ext.c (revision 0)
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@@ -0,0 +1,19 @@
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+/* -Woverlength-strings complains about string constants which are too long
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+ for the C standard's "minimum maximum" limits. It is off by default,
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+ but implied by -pedantic. */
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+
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+/* { dg-options "-std=c99 -pedantic" } */
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+
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+#define TEN "xxxxxxxxxx"
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+#define HUN TEN TEN TEN TEN TEN TEN TEN TEN TEN TEN
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+#define THO HUN HUN HUN HUN HUN HUN HUN HUN HUN HUN
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+
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+/* C89's minimum-maximum is 509. */
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+const char x510[] = HUN HUN HUN HUN HUN TEN;
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+
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+/* C99's minimum-maximum is 4095. */
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+const char x4096[] = __extension__
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+ THO THO THO THO /* 4000 */
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+ TEN TEN TEN TEN TEN /* 4050 */
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+ TEN TEN TEN TEN /* 4090 */
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+ "123456";
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