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cppinit.c (lang_defaults): New table.

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* cppinit.c (lang_defaults): New table.
	(set_lang): Just read from lang_defaults into the live options
	structure.

From-SVN: r43699
This commit is contained in:
Zack Weinberg 2001-07-02 18:55:35 +00:00 committed by Zack Weinberg
parent 51817b107a
commit a01eb545c4
2 changed files with 44 additions and 72 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* cppinit.c (lang_defaults): New table.
(set_lang): Just read from lang_defaults into the live options
structure.
2001-07-02 Zack Weinberg <zackw@stanford.edu>
* Makefile.in (doc): Depend on $(GENERATED_MANPAGES).

110
gcc/cppinit.c
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@ -370,85 +370,51 @@ merge_include_chains (pfile)
/* Sets internal flags correctly for a given language, and defines
macros if necessary. */
struct lang_flags
{
char c99;
char objc;
char cplusplus;
char extended_numbers;
char trigraphs;
char dollars_in_ident;
char cplusplus_comments;
char digraphs;
};
/* ??? Enable $ in identifiers in assembly? */
static const struct lang_flags lang_defaults[] =
{ /* c99 objc c++ xnum trig dollar c++comm digr */
/* GNUC89 */ { 0, 0, 0, 1, 0, 1, 1, 1 },
/* GNUC99 */ { 1, 0, 0, 1, 0, 1, 1, 1 },
/* STDC89 */ { 0, 0, 0, 0, 1, 0, 0, 0 },
/* STDC94 */ { 0, 0, 0, 0, 1, 0, 0, 1 },
/* STDC99 */ { 1, 0, 0, 1, 1, 0, 1, 1 },
/* GNUCXX */ { 0, 0, 1, 1, 0, 1, 1, 1 },
/* CXX98 */ { 0, 0, 1, 1, 1, 0, 1, 1 },
/* OBJC */ { 0, 1, 0, 1, 0, 1, 1, 1 },
/* OBJCXX */ { 0, 1, 1, 1, 0, 1, 1, 1 },
/* ASM */ { 0, 0, 0, 1, 0, 0, 1, 0 }
};
static void
set_lang (pfile, lang)
cpp_reader *pfile;
enum c_lang lang;
{
/* Defaults. */
const struct lang_flags *l = &lang_defaults[(int) lang];
CPP_OPTION (pfile, lang) = lang;
CPP_OPTION (pfile, objc) = 0;
CPP_OPTION (pfile, cplusplus) = 0;
CPP_OPTION (pfile, extended_numbers) = 1; /* Allowed in GNU C and C99. */
switch (lang)
{
/* GNU C. */
case CLK_GNUC99:
CPP_OPTION (pfile, trigraphs) = 0;
CPP_OPTION (pfile, dollars_in_ident) = 1;
CPP_OPTION (pfile, cplusplus_comments) = 1;
CPP_OPTION (pfile, digraphs) = 1;
CPP_OPTION (pfile, c99) = 1;
break;
case CLK_GNUC89:
CPP_OPTION (pfile, trigraphs) = 0;
CPP_OPTION (pfile, dollars_in_ident) = 1;
CPP_OPTION (pfile, cplusplus_comments) = 1;
CPP_OPTION (pfile, digraphs) = 1;
CPP_OPTION (pfile, c99) = 0;
break;
/* ISO C. */
case CLK_STDC94:
case CLK_STDC89:
CPP_OPTION (pfile, trigraphs) = 1;
CPP_OPTION (pfile, dollars_in_ident) = 0;
CPP_OPTION (pfile, cplusplus_comments) = 0;
CPP_OPTION (pfile, digraphs) = lang == CLK_STDC94;
CPP_OPTION (pfile, c99) = 0;
CPP_OPTION (pfile, extended_numbers) = 0;
break;
case CLK_STDC99:
CPP_OPTION (pfile, trigraphs) = 1;
CPP_OPTION (pfile, dollars_in_ident) = 0;
CPP_OPTION (pfile, cplusplus_comments) = 1;
CPP_OPTION (pfile, digraphs) = 1;
CPP_OPTION (pfile, c99) = 1;
break;
/* Objective C. */
case CLK_OBJCXX:
CPP_OPTION (pfile, cplusplus) = 1;
case CLK_OBJC:
CPP_OPTION (pfile, trigraphs) = 0;
CPP_OPTION (pfile, dollars_in_ident) = 1;
CPP_OPTION (pfile, cplusplus_comments) = 1;
CPP_OPTION (pfile, digraphs) = 1;
CPP_OPTION (pfile, c99) = 0;
CPP_OPTION (pfile, objc) = 1;
break;
/* C++. */
case CLK_GNUCXX:
case CLK_CXX98:
CPP_OPTION (pfile, cplusplus) = 1;
CPP_OPTION (pfile, trigraphs) = lang == CLK_CXX98;
CPP_OPTION (pfile, dollars_in_ident) = lang == CLK_GNUCXX;
CPP_OPTION (pfile, cplusplus_comments) = 1;
CPP_OPTION (pfile, digraphs) = 1;
CPP_OPTION (pfile, c99) = 0;
break;
/* Assembler. */
case CLK_ASM:
CPP_OPTION (pfile, trigraphs) = 0;
CPP_OPTION (pfile, dollars_in_ident) = 0; /* Maybe not? */
CPP_OPTION (pfile, cplusplus_comments) = 1;
CPP_OPTION (pfile, digraphs) = 0;
CPP_OPTION (pfile, c99) = 0;
break;
}
CPP_OPTION (pfile, c99) = l->c99;
CPP_OPTION (pfile, objc) = l->objc;
CPP_OPTION (pfile, cplusplus) = l->cplusplus;
CPP_OPTION (pfile, extended_numbers) = l->extended_numbers;
CPP_OPTION (pfile, trigraphs) = l->trigraphs;
CPP_OPTION (pfile, dollars_in_ident) = l->dollars_in_ident;
CPP_OPTION (pfile, cplusplus_comments) = l->cplusplus_comments;
CPP_OPTION (pfile, digraphs) = l->digraphs;
}
#ifdef HOST_EBCDIC