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| author | Ed Smith-Rowland <3dw4rd@verizon.net> | 2021-02-02 16:11:57 -0500 |
|---|---|---|
| committer | Ed Smith-Rowland <3dw4rd@verizon.net> | 2021-02-03 12:12:31 -0500 |
| commit | 1f69e63cfcc664fd7382dd877846007652a01dcf (patch) | |
| tree | 044c232c236da131484baffa67d63b1cab0eac55 /libcpp/include/cpplib.h | |
| parent | 530203d6e3244c25eda4124f0fa5756ca9a5683e (diff) | |
| download | gcc-1f69e63cfcc664fd7382dd877846007652a01dcf.zip gcc-1f69e63cfcc664fd7382dd877846007652a01dcf.tar.gz gcc-1f69e63cfcc664fd7382dd877846007652a01dcf.tar.bz2 | |
c++: Implement C++23 P0330 - Literal Suffixes for ptrdiff_t and size_t.
Integer literal suffixes for signed size ('z') and unsigned size
(some permutation od 'zu') are provided as a language addition.
gcc/c-family/ChangeLog:
* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_size_t_suffix.
* c-lex.c (interpret_integer): Set node type for size literal.
libcpp/ChangeLog:
* expr.c (interpret_int_suffix): Detect 'z' integer suffix.
(cpp_classify_number): Compat warning for use of 'z' suffix.
* include/cpplib.h (struct cpp_options): New flag.
(enum cpp_warning_reason): New flag.
(CPP_N_USERDEF): Comment C++0x -> C++11.
(CPP_N_SIZE_T): New flag for cpp_classify_number.
* init.c (cpp_set_lang): Initialize new flag.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/udlit-shadow-neg.C: Test for 'z' and 'zu' shadowing.
* g++.dg/cpp23/feat-cxx2b.C: New test.
* g++.dg/cpp23/size_t-literals.C: New test.
* g++.dg/warn/Wsize_t-literals.C: New test.
Diffstat (limited to 'libcpp/include/cpplib.h')
| -rw-r--r-- | libcpp/include/cpplib.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h index 4467c73..17feb64 100644 --- a/libcpp/include/cpplib.h +++ b/libcpp/include/cpplib.h @@ -500,6 +500,9 @@ struct cpp_options /* Nonzero means tokenize C++20 module directives. */ unsigned char module_directives; + /* Nonzero for C++23 size_t literals. */ + unsigned char size_t_literals; + /* Holds the name of the target (execution) character set. */ const char *narrow_charset; @@ -626,6 +629,7 @@ enum cpp_warning_reason { CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE, CPP_W_LITERAL_SUFFIX, + CPP_W_SIZE_T_LITERALS, CPP_W_DATE_TIME, CPP_W_PEDANTIC, CPP_W_C90_C99_COMPAT, @@ -1211,7 +1215,9 @@ struct cpp_num #define CPP_N_FLOATN 0x400000 /* _FloatN types. */ #define CPP_N_FLOATNX 0x800000 /* _FloatNx types. */ -#define CPP_N_USERDEF 0x1000000 /* C++0x user-defined literal. */ +#define CPP_N_USERDEF 0x1000000 /* C++11 user-defined literal. */ + +#define CPP_N_SIZE_T 0x2000000 /* C++23 size_t literal. */ #define CPP_N_WIDTH_FLOATN_NX 0xF0000000 /* _FloatN / _FloatNx value of N, divided by 16. */ |