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re PR preprocessor/23479 (Implement binary constants with a "0b" prefix)

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2007-06-05  Joerg Wunsch  <j.gnu@uriah.heep.sax.de>

	PR preprocessor/23479
gcc/
	* doc/extend.texi: Document the 0b-prefixed binary integer
	constant extension.

libcpp/
	* expr.c (cpp_classify_number): Implement 0b-prefixed binary
	integer constants.
	(append_digit): Likewise.
	* include/cpplib.h: Add CPP_N_BINARY, to be used for 0b-prefixed
	binary integer constants.

testsuite/
	* testsuite/gcc.dg/binary-constants-1.c: Add test suites for
	the 0b-prefixed binary integer constants.
	* testsuite/gcc.dg/binary-constants-2.c: Ditto.
	* testsuite/gcc.dg/binary-constants-3.c: Ditto.
	* testsuite/gcc.dg/binary-constants-4.c: Ditto.

From-SVN: r125346
This commit is contained in:
Joerg Wunsch
2007-06-05 22:25:27 +00:00
committed by Manuel López-Ibáñez
parent 1a5f8b894c
commit f7fd775f02
10 changed files with 453 additions and 3 deletions
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libcpp/include/cpplib.h
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@@ -748,6 +748,7 @@ struct cpp_num
#define CPP_N_DECIMAL 0x0100
#define CPP_N_HEX 0x0200
#define CPP_N_OCTAL 0x0400
#define CPP_N_BINARY 0x0800
#define CPP_N_UNSIGNED 0x1000 /* Properties. */
#define CPP_N_IMAGINARY 0x2000