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remove fmt.C

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5037 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
John Levon 2002-08-20 16:43:51 +00:00
parent bab154eb92
commit 9371c42e3a
3 changed files with 5 additions and 58 deletions
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5
src/support/ChangeLog
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@ -1,3 +1,8 @@
2002-08-20 John Levon <levon@movementarian.org>
* Makefile.am:
* fmt.C: remove
2002-08-14 Lars Gullik Bjønnes <larsbj@gullik.net>
* textutils.h: formatting.

1
src/support/Makefile.am
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@ -30,7 +30,6 @@ libsupport_la_SOURCES = \
copy.C \
filetools.C \
filetools.h \
fmt.C \
forkedcall.C \
forkedcall.h \
forkedcontr.C \

57
src/support/fmt.C
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@ -1,57 +0,0 @@
#include <config.h>
#include <cstdio>
#include <cstdarg>
#ifndef HAVE_DECL_VSNPRINTF
#include "support/snprintf.h"
#endif
#include "LString.h"
#ifndef CXX_GLOBAL_CSTD
using std::va_list;
#endif
/* This output manipulator gives the option to use Old style format
specifications in ostreams. Note that this is done at the expense
of typesafety, so if possible this manipulator should be avoided.
When is it allowed to use this manipulator? I wrote it to be used
i18n strings and gettext, and it should only(?) be used in that
context.
Ad. the implementation. I have only tested this on egcs-2.91.66 with
glibc 2.1.2. So further testing is needed. The loop in fmt(...) will
usually spin one or two times, but might spin more times with older
glibc libraries, since the returned -1 when size is too small. Newer
glibc returns the needed size.
One problem can be that vsnprintf is not implemented on all archs,
but AFAIK it is part of the new ANSI C standard.
Lgb
*/
string fmt(char const * fmtstr ...)
{
int size = 80;
char * str = new char[size];
va_list ap;
while (true) {
va_start(ap, fmtstr);
int const r = vsnprintf(str, size, fmtstr, ap);
va_end(ap);
if (r == -1) { // size is too small
delete [] str;
size *= 2; // seems quite safe to double.
str = new char[size];
} else if (r >= size) { // r gives the needed size
delete [] str;
size += r;
str = new char[size];
} else {
break;
}
}
string res(str);
delete [] str;
return res;
}