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The conversion specifier to output a StrBuf had to be changed, because gcc

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emits a warning for each such unknown conversion specifier.


git-svn-id: svn://svn.cc65.org/cc65/trunk@3824 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2008-03-31 20:51:31 +00:00
parent 528dff89b1
commit 6a7e844500
2 changed files with 48 additions and 7 deletions
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39
src/common/xsprintf.c
View File

@ -42,6 +42,7 @@
#include "chartype.h"
#include "check.h"
#include "inttypes.h"
#include "strbuf.h"
#include "va_copy.h"
#include "xsprintf.h"
@ -374,6 +375,7 @@ int xvsnprintf (char* Buf, size_t Size, const char* Format, va_list ap)
char F;
char SBuf[2];
const char* SPtr;
int UseStrBuf = 0;
/* Initialize the control structure */
@ -571,11 +573,38 @@ int xvsnprintf (char* Buf, size_t Size, const char* Format, va_list ap)
break;
case 'p':
/* Use hex format for pointers */
P.Flags |= (fUnsigned | fPrec);
P.Prec = ((sizeof (void*) * CHAR_BIT) + 3) / 4;
P.Base = 16;
FormatInt (&P, (uintptr_t) va_arg (P.ap, void*));
/* See comment at top of header file */
if (UseStrBuf) {
/* Argument is StrBuf */
const StrBuf* S = va_arg (P.ap, const StrBuf*);
CHECK (S != 0);
/* Handle the length by using a precision */
if ((P.Flags & fPrec) != 0) {
/* Precision already specified, use length of string
* if less.
*/
if ((unsigned) P.Prec > SB_GetLen (S)) {
P.Prec = SB_GetLen (S);
}
} else {
/* No precision, add it */
P.Flags |= fPrec;
P.Prec = SB_GetLen (S);
}
FormatStr (&P, SB_GetConstBuf (S));
UseStrBuf = 0; /* Reset flag */
} else {
/* Use hex format for pointers */
P.Flags |= (fUnsigned | fPrec);
P.Prec = ((sizeof (void*) * CHAR_BIT) + 3) / 4;
P.Base = 16;
FormatInt (&P, (uintptr_t) va_arg (P.ap, void*));
}
break;
case 'm':
/* See comment at top of header file */
UseStrBuf = 1;
break;
case 'n':

16
src/common/xsprintf.h
View File

@ -6,8 +6,8 @@
/* */
/* */
/* */
/* (C) 2000-2004 Ullrich von Bassewitz */
/* Römerstrasse 52 */
/* (C) 2000-2008 Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
@ -33,6 +33,18 @@
/* We need a way to output a StrBuf, but on the other side, we don't want to
* switch off gcc's printf format string checking. So we cheat as follows:
* %m (which is a gcc extension and doesn't take an argument) switches %p
* between outputting a pointer and a string buf. This works just one time,
* so each StrBuf needs in fact a %m%p spec. There's no way to apply a width
* and precision to such a StrBuf, but *not* using %p would bring up a warning
* about a wrong argument type each time. Maybe gcc will one day allow custom
* format specifiers and we can change this ...
*/
#ifndef XSPRINTF_H
#define XSPRINTF_H