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Added #warning (suggestion by Rudolf Schubert).

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3799 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2007-08-28 12:53:43 +00:00
parent 0b4a94a65e
commit 79a89299b9
1 changed files with 62 additions and 32 deletions
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94
src/cc65/preproc.c
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@ -6,8 +6,8 @@
/* */
/* */
/* */
/* (C) 1998-2005, Ullrich von Bassewitz */
/* Römerstraße 52 */
/* (C) 1998-2007, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
@ -128,7 +128,8 @@ typedef enum {
PP_INCLUDE,
PP_LINE,
PP_PRAGMA,
PP_UNDEF
PP_UNDEF,
PP_WARNING,
} pptoken_t;
@ -150,6 +151,7 @@ static const struct PPToken {
{ "line", PP_LINE },
{ "pragma", PP_PRAGMA },
{ "undef", PP_UNDEF },
{ "warning", PP_WARNING },
};
/* Number of preprocessor tokens */
@ -983,19 +985,6 @@ static void PreprocessLine (void)
static void DoUndef (void)
/* Process the #undef directive */
{
ident Ident;
SkipWhitespace ();
if (MacName (Ident)) {
UndefineMacro (Ident);
}
}
static int PushIf (int Skip, int Invert, int Cond)
/* Push a new if level onto the if stack */
{
@ -1018,6 +1007,22 @@ static int PushIf (int Skip, int Invert, int Cond)
static void DoError (void)
/* Print an error */
{
SkipWhitespace ();
if (CurC == '\0') {
PPError ("Invalid #error directive");
} else {
PPError ("#error: %s", SB_GetConstBuf (Line) + SB_GetIndex (Line));
}
/* Clear the rest of line */
ClearLine ();
}
static int DoIf (int Skip)
/* Process #if directive */
{
@ -1162,22 +1167,6 @@ Done:
static void DoError (void)
/* Print an error */
{
SkipWhitespace ();
if (CurC == '\0') {
PPError ("Invalid #error directive");
} else {
PPError ("#error: %s", SB_GetConstBuf (Line) + SB_GetIndex (Line));
}
/* Clear the rest of line */
ClearLine ();
}
static void DoPragma (void)
/* Handle a #pragma line by converting the #pragma preprocessor directive into
* the _Pragma() compiler operator.
@ -1203,6 +1192,35 @@ static void DoPragma (void)
static void DoUndef (void)
/* Process the #undef directive */
{
ident Ident;
SkipWhitespace ();
if (MacName (Ident)) {
UndefineMacro (Ident);
}
}
static void DoWarning (void)
/* Print a warning */
{
SkipWhitespace ();
if (CurC == '\0') {
PPError ("Invalid #warning directive");
} else {
PPWarning ("#warning: %s", SB_GetConstBuf (Line) + SB_GetIndex (Line));
}
/* Clear the rest of line */
ClearLine ();
}
void Preprocess (void)
/* Preprocess a line */
{
@ -1340,6 +1358,18 @@ void Preprocess (void)
}
break;
case PP_WARNING:
/* #warning is a non standard extension */
if (IS_Get (&Standard) > STD_C99) {
if (!Skip) {
DoWarning ();
}
} else {
PPError ("Preprocessor directive expected");
ClearLine ();
}
break;
default:
PPError ("Preprocessor directive expected");
ClearLine ();