--- vfwprintf.c.orig 2004-11-25 11:38:36.000000000 -0800
+++ vfwprintf.c 2005-02-24 15:17:14.000000000 -0800
@@ -42,6 +42,8 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/stdio/vfwprintf.c,v 1.23 2004/08/26 06:25:28 des Exp $");
+#include "xlocale_private.h"
+
/*
* Actual wprintf innards.
*
@@ -63,12 +65,19 @@
#include <string.h>
#include <wchar.h>
#include <wctype.h>
+#include <errno.h>
#include "un-namespace.h"
#include "libc_private.h"
#include "local.h"
#include "fvwrite.h"
+#ifdef ALTIVEC
+#include <machine/cpu_capabilities.h>
+
+#define VECTORTYPE vector unsigned char
+#endif /* ALTIVEC */
+
union arg {
int intarg;
u_int uintarg;
@@ -96,6 +105,16 @@
#endif
wint_t wintarg;
wchar_t *pwchararg;
+#ifdef ALTIVEC
+ VECTORTYPE vectorarg;
+ unsigned char vuchararg[16];
+ signed char vchararg[16];
+ unsigned short vushortarg[8];
+ signed short vshortarg[8];
+ unsigned int vuintarg[4];
+ signed int vintarg[4];
+ float vfloatarg[4];
+#endif /* ALTIVEC */
};
/*
@@ -106,26 +125,63 @@
T_LONG, T_U_LONG, TP_LONG, T_LLONG, T_U_LLONG, TP_LLONG,
T_PTRDIFFT, TP_PTRDIFFT, T_SIZET, TP_SIZET,
T_INTMAXT, T_UINTMAXT, TP_INTMAXT, TP_VOID, TP_CHAR, TP_SCHAR,
+#ifdef ALTIVEC
+ T_DOUBLE, T_LONG_DOUBLE, T_WINT, TP_WCHAR, T_VECTOR
+#else /* ! ALTIVEC */
T_DOUBLE, T_LONG_DOUBLE, T_WINT, TP_WCHAR
+#endif /* ALTIVEC */
};
-static int __sbprintf(FILE *, const wchar_t *, va_list);
-static wint_t __xfputwc(wchar_t, FILE *);
+static int __sbprintf(FILE *, locale_t, const wchar_t *, va_list);
+static wint_t __xfputwc(wchar_t, FILE *, locale_t);
static wchar_t *__ujtoa(uintmax_t, wchar_t *, int, int, const char *, int,
char, const char *);
static wchar_t *__ultoa(u_long, wchar_t *, int, int, const char *, int,
char, const char *);
-static wchar_t *__mbsconv(char *, int);
+static wchar_t *__mbsconv(char *, int, locale_t);
static void __find_arguments(const wchar_t *, va_list, union arg **);
static void __grow_type_table(int, enum typeid **, int *);
+ /*
+ * Get the argument indexed by nextarg. If the argument table is
+ * built, use it to get the argument. If its not, get the next
+ * argument (and arguments must be gotten sequentially).
+ */
+#define GETARG(type) \
+ ((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : \
+ (nextarg++, va_arg(ap, type)))
+
+#ifdef ALTIVEC
+#define hasAltivec (_cpu_capabilities & kHasAltivec)
+/*-----------------------------------------------------------------------
+ * getvec() must be a real subroutine. If it is a #define, then __vfprintf()
+ * would have its calling sequence changed by Altivec so that a non-Altivec
+ * processor would crash on illegal instruction. By isolating the calling
+ * sequence in getvec(), __vprintf() is callable by a non-Altivec processor.
+ *-----------------------------------------------------------------------*/
+static va_list getvec(union arg *, const union arg *, int, va_list) __attribute__((noinline));
+
+static va_list
+getvec(union arg *dst, const union arg *argtable, int nextarg, va_list ap)
+{
+ dst->vectorarg = GETARG(VECTORTYPE);
+ return ap;
+}
+
+#define SETVEC(dst) \
+{ \
+ ap = getvec(&dst, argtable, nextarg, ap); \
+ nextarg++; \
+}
+#endif /* ALTIVEC */
+
/*
* Helper function for `fprintf to unbuffered unix file': creates a
* temporary buffer. We only work on write-only files; this avoids
* worries about ungetc buffers and so forth.
*/
static int
-__sbprintf(FILE *fp, const wchar_t *fmt, va_list ap)
+__sbprintf(FILE *fp, locale_t loc, const wchar_t *fmt, va_list ap)
{
int ret;
FILE fake;
@@ -144,7 +200,7 @@
fake._lbfsize = 0; /* not actually used, but Just In Case */
/* do the work, then copy any error status */
- ret = __vfwprintf(&fake, fmt, ap);
+ ret = __vfwprintf(&fake, loc, fmt, ap);
if (ret >= 0 && __fflush(&fake))
ret = WEOF;
if (fake._flags & __SERR)
@@ -157,7 +213,7 @@
* File must already be locked.
*/
static wint_t
-__xfputwc(wchar_t wc, FILE *fp)
+__xfputwc(wchar_t wc, FILE *fp, locale_t loc)
{
static const mbstate_t initial;
mbstate_t mbs;
@@ -167,10 +223,10 @@
size_t len;
if ((fp->_flags & __SSTR) == 0)
- return (__fputwc(wc, fp));
+ return (__fputwc(wc, fp, loc));
mbs = initial;
- if ((len = wcrtomb(buf, wc, &mbs)) == (size_t)-1) {
+ if ((len = wcrtomb_l(buf, wc, &mbs, loc)) == (size_t)-1) {
fp->_flags |= __SERR;
return (WEOF);
}
@@ -350,13 +406,14 @@
* that the multibyte char. string ends in a null character.
*/
static wchar_t *
-__mbsconv(char *mbsarg, int prec)
+__mbsconv(char *mbsarg, int prec, locale_t loc)
{
static const mbstate_t initial;
mbstate_t mbs;
wchar_t *convbuf, *wcp;
const char *p;
size_t insize, nchars, nconv;
+ int mb_cur_max = MB_CUR_MAX_L(loc);
if (mbsarg == NULL)
return (NULL);
@@ -374,7 +431,7 @@
insize = nchars = 0;
mbs = initial;
while (nchars != (size_t)prec) {
- nconv = mbrlen(p, MB_CUR_MAX, &mbs);
+ nconv = mbrlen_l(p, mb_cur_max, &mbs, loc);
if (nconv == 0 || nconv == (size_t)-1 ||
nconv == (size_t)-2)
break;
@@ -399,7 +456,7 @@
p = mbsarg;
mbs = initial;
while (insize != 0) {
- nconv = mbrtowc(wcp, p, insize, &mbs);
+ nconv = mbrtowc_l(wcp, p, insize, &mbs, loc);
if (nconv == 0 || nconv == (size_t)-1 || nconv == (size_t)-2)
break;
wcp++;
@@ -425,7 +482,21 @@
int ret;
FLOCKFILE(fp);
- ret = __vfwprintf(fp, fmt0, ap);
+ ret = __vfwprintf(fp, __current_locale(), fmt0, ap);
+ FUNLOCKFILE(fp);
+ return (ret);
+}
+
+int
+vfwprintf_l(FILE * __restrict fp, locale_t loc, const wchar_t * __restrict fmt0,
+ va_list ap)
+
+{
+ int ret;
+
+ NORMALIZE_LOCALE(loc);
+ FLOCKFILE(fp);
+ ret = __vfwprintf(fp, loc, fmt0, ap);
FUNLOCKFILE(fp);
return (ret);
}
@@ -474,12 +545,15 @@
#define PTRDIFFT 0x800 /* ptrdiff_t */
#define INTMAXT 0x1000 /* intmax_t */
#define CHARINT 0x2000 /* print char using int format */
+#ifdef ALTIVEC
+#define VECTOR 0x4000 /* Altivec vector */
+#endif /* ALTIVEC */
/*
* Non-MT-safe version
*/
-int
-__vfwprintf(FILE *fp, const wchar_t *fmt0, va_list ap)
+__private_extern__ int
+__vfwprintf(FILE *fp, locale_t loc, const wchar_t *fmt0, va_list ap)
{
wchar_t *fmt; /* format string */
wchar_t ch; /* character from fmt */
@@ -524,6 +598,11 @@
int nseps; /* number of group separators with ' */
int nrepeats; /* number of repeats of the last group */
#endif
+#ifdef ALTIVEC
+ union arg vval; /* Vector argument. */
+ wchar_t *pct; /* Pointer to '%' at beginning of specifier. */
+ wchar_t vsep; /* Vector separator character. */
+#endif
u_long ulval; /* integer arguments %[diouxX] */
uintmax_t ujval; /* %j, %ll, %q, %t, %z integers */
int base; /* base for [diouxX] conversion */
@@ -560,7 +639,7 @@
*/
#define PRINT(ptr, len) do { \
for (n3 = 0; n3 < (len); n3++) \
- __xfputwc((ptr)[n3], fp); \
+ __xfputwc((ptr)[n3], fp, loc); \
} while (0)
#define PAD(howmany, with) do { \
if ((n = (howmany)) > 0) { \
@@ -581,15 +660,6 @@
} while(0)
/*
- * Get the argument indexed by nextarg. If the argument table is
- * built, use it to get the argument. If its not, get the next
- * argument (and arguments must be gotten sequentially).
- */
-#define GETARG(type) \
- ((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : \
- (nextarg++, va_arg(ap, type)))
-
- /*
* To extend shorts properly, we need both signed and unsigned
* argument extraction methods.
*/
@@ -640,21 +710,22 @@
val = GETARG (int); \
}
-
thousands_sep = '\0';
grouping = NULL;
#ifndef NO_FLOATING_POINT
- decimal_point = localeconv()->decimal_point;
+ decimal_point = localeconv_l(loc)->decimal_point;
#endif
convbuf = NULL;
/* sorry, fwprintf(read_only_file, L"") returns WEOF, not 0 */
- if (prepwrite(fp) != 0)
+ if (prepwrite(fp) != 0) {
+ errno = EBADF;
return (EOF);
+ }
/* optimise fprintf(stderr) (and other unbuffered Unix files) */
if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
fp->_file >= 0)
- return (__sbprintf(fp, fmt0, ap));
+ return (__sbprintf(fp, loc, fmt0, ap));
fmt = (wchar_t *)fmt0;
argtable = NULL;
@@ -678,6 +749,9 @@
}
if (ch == '\0')
goto done;
+#ifdef ALTIVEC
+ pct = fmt;
+#endif /* ALTIVEC */
fmt++; /* skip over '%' */
flags = 0;
@@ -686,6 +760,9 @@
prec = -1;
sign = '\0';
ox[1] = '\0';
+#ifdef ALTIVEC
+ vsep = 'X'; /* Illegal value, changed to defaults later. */
+#endif /* ALTIVEC */
rflag: ch = *fmt++;
reswitch: switch (ch) {
@@ -701,6 +778,11 @@
case '#':
flags |= ALT;
goto rflag;
+#ifdef ALTIVEC
+ case ',': case ';': case ':': case '_':
+ vsep = ch;
+ goto rflag;
+#endif /* ALTIVEC */
case '*':
/*-
* ``A negative field width argument is taken as a
@@ -721,8 +803,8 @@
goto rflag;
case '\'':
flags |= GROUPING;
- thousands_sep = *(localeconv()->thousands_sep);
- grouping = localeconv()->grouping;
+ thousands_sep = *(localeconv_l(loc)->thousands_sep);
+ grouping = localeconv_l(loc)->grouping;
goto rflag;
case '.':
if ((ch = *fmt++) == '*') {
@@ -796,10 +878,16 @@
flags |= LONGINT;
/*FALLTHROUGH*/
case 'c':
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
if (flags & LONGINT)
*(cp = buf) = (wchar_t)GETARG(wint_t);
else
- *(cp = buf) = (wchar_t)btowc(GETARG(int));
+ *(cp = buf) = (wchar_t)btowc_l(GETARG(int), loc);
size = 1;
sign = '\0';
break;
@@ -808,6 +896,12 @@
/*FALLTHROUGH*/
case 'd':
case 'i':
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
if (flags & INTMAX_SIZE) {
ujval = SJARG();
if ((intmax_t)ujval < 0) {
@@ -837,6 +931,12 @@
}
if (prec >= 0)
prec++;
+#ifdef LDBL_COMPAT
+ fparg.dbl = GETARG(double);
+ dtoaresult =
+ __hdtoa(fparg.dbl, xdigs, prec,
+ &expt, &signflag, &dtoaend);
+#else /* !LDBL_COMPAT */
if (flags & LONGDBL) {
fparg.ldbl = GETARG(long double);
dtoaresult =
@@ -848,6 +948,7 @@
__hdtoa(fparg.dbl, xdigs, prec,
&expt, &signflag, &dtoaend);
}
+#endif /* LDBL_COMPAT */
if (prec < 0)
prec = dtoaend - dtoaresult;
if (expt == INT_MAX)
@@ -855,7 +956,7 @@
if (convbuf != NULL)
free(convbuf);
ndig = dtoaend - dtoaresult;
- cp = convbuf = __mbsconv(dtoaresult, -1);
+ cp = convbuf = __mbsconv(dtoaresult, -1, loc);
freedtoa(dtoaresult);
goto fp_common;
case 'e':
@@ -868,10 +969,24 @@
goto fp_begin;
case 'f':
case 'F':
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ flags |= FPT;
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
expchar = '\0';
goto fp_begin;
case 'g':
case 'G':
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ flags |= FPT;
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
expchar = ch - ('g' - 'e');
if (prec == 0)
prec = 1;
@@ -880,6 +995,14 @@
prec = DEFPREC;
if (convbuf != NULL)
free(convbuf);
+#ifdef LDBL_COMPAT
+ fparg.dbl = GETARG(double);
+ dtoaresult =
+ dtoa(fparg.dbl, expchar ? 2 : 3, prec,
+ &expt, &signflag, &dtoaend);
+ if (expt == 9999)
+ expt = INT_MAX;
+#else /* !LDBL_COMPAT */
if (flags & LONGDBL) {
fparg.ldbl = GETARG(long double);
dtoaresult =
@@ -893,8 +1016,9 @@
if (expt == 9999)
expt = INT_MAX;
}
+#endif /* LDBL_COMPAT */
ndig = dtoaend - dtoaresult;
- cp = convbuf = __mbsconv(dtoaresult, -1);
+ cp = convbuf = __mbsconv(dtoaresult, -1, loc);
freedtoa(dtoaresult);
fp_common:
if (signflag)
@@ -989,6 +1113,12 @@
flags |= LONGINT;
/*FALLTHROUGH*/
case 'o':
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
if (flags & INTMAX_SIZE)
ujval = UJARG();
else
@@ -1003,6 +1133,12 @@
* defined manner.''
* -- ANSI X3J11
*/
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
ujval = (uintmax_t)(uintptr_t)GETARG(void *);
base = 16;
xdigs = xdigs_lower;
@@ -1024,7 +1160,7 @@
if ((mbp = GETARG(char *)) == NULL)
cp = L"(null)";
else {
- convbuf = __mbsconv(mbp, prec);
+ convbuf = __mbsconv(mbp, prec, loc);
if (convbuf == NULL) {
fp->_flags |= __SERR;
goto error;
@@ -1055,6 +1191,12 @@
flags |= LONGINT;
/*FALLTHROUGH*/
case 'u':
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
if (flags & INTMAX_SIZE)
ujval = UJARG();
else
@@ -1067,6 +1209,12 @@
case 'x':
xdigs = xdigs_lower;
hex:
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ SETVEC(vval);
+ break;
+ }
+#endif /* ALTIVEC */
if (flags & INTMAX_SIZE)
ujval = UJARG();
else
@@ -1111,6 +1259,14 @@
if (size > BUF) /* should never happen */
abort();
break;
+#ifdef ALTIVEC
+ case 'v':
+ if (hasAltivec) {
+ flags |= VECTOR;
+ goto rflag;
+ }
+ /* drop through */
+#endif /* ALTIVEC */
default: /* "%?" prints ?, unless ? is NUL */
if (ch == '\0')
goto done;
@@ -1122,6 +1278,183 @@
break;
}
+#ifdef ALTIVEC
+ if (flags & VECTOR) {
+ /*
+ * Do the minimum amount of work necessary to construct
+ * a format specifier that can be used to recursively
+ * call vfprintf() for each element in the vector.
+ */
+ int i, j; /* Counter. */
+ int vcnt; /* Number of elements in vector. */
+ char *vfmt; /* Pointer to format specifier. */
+ char vfmt_buf[32]; /* Static buffer for format spec. */
+ int vwidth = 0; /* Width specified via '*'. */
+ int vprec = 0; /* Precision specified via '*'. */
+ union { /* Element. */
+ int i;
+ float f;
+ } velm;
+ char *vstr; /* Used for asprintf(). */
+ int vlen; /* Length returned by asprintf(). */
+
+ /*
+ * Set vfmt. If vfmt_buf may not be big enough,
+ * malloc() space, taking care to free it later.
+ */
+ if (&fmt[-1] - pct < sizeof(vfmt_buf))
+ vfmt = vfmt_buf;
+ else
+ vfmt = (char *)malloc(&fmt[-1] - pct + 1);
+
+ /* Set the separator character, if not specified. */
+ if (vsep == 'X') {
+ if (ch == 'c')
+ vsep = '\0';
+ else
+ vsep = ' ';
+ }
+
+ /* Create the format specifier. */
+ for (i = j = 0; i < &fmt[-1] - pct; i++) {
+ switch (pct[i]) {
+ case ',': case ';': case ':': case '_':
+ case 'v': case 'h': case 'l':
+ /* Ignore. */
+ break;
+ case '*':
+ if (pct[i - 1] != '.')
+ vwidth = 1;
+ else
+ vprec = 1;
+ /* FALLTHROUGH */
+ default:
+ vfmt[j++] = pct[i];
+ }
+ }
+
+ /*
+ * Determine the number of elements in the vector and
+ * finish up the format specifier.
+ */
+ if (flags & SHORTINT) {
+ if (ch != 'c')
+ vfmt[j++] = 'h';
+ vcnt = 8;
+ } else if (flags & LONGINT) {
+ if (ch != 'c')
+ vfmt[j++] = 'l';
+ vcnt = 4;
+ } else {
+ switch (ch) {
+ case 'a':
+ case 'A':
+ case 'e':
+ case 'E':
+ case 'f':
+ case 'g':
+ case 'G':
+ vcnt = 4;
+ break;
+ default:
+ /*
+ * The default case should never
+ * happen.
+ */
+ case 'c':
+ case 'd':
+ case 'i':
+ case 'u':
+ case 'o':
+ case 'p':
+ case 'x':
+ case 'X':
+ vcnt = 16;
+ }
+ }
+ vfmt[j++] = ch;
+ vfmt[j++] = '\0';
+
+/* Get a vector element. */
+#define VPRINT(cnt, ind, args...) do { \
+ if (flags & FPT) { \
+ velm.f = vval.vfloatarg[ind]; \
+ vlen = asprintf_l(&vstr, loc, vfmt , ## args, velm.f); \
+ } else { \
+ switch (cnt) { \
+ default: \
+ /* The default case should never happen. */ \
+ case 4: \
+ velm.i = (unsigned)vval.vintarg[ind]; \
+ break; \
+ case 8: \
+ velm.i = (unsigned short)vval.vshortarg[ind]; \
+ break; \
+ case 16: \
+ velm.i = (unsigned char)vval.vchararg[ind]; \
+ break; \
+ } \
+ vlen = asprintf_l(&vstr, loc, vfmt , ## args, velm.i); \
+ } \
+ ret += vlen; \
+ PRINT(vstr, vlen); \
+ free(vstr); \
+} while (0)
+
+ /* Actually print. */
+ if (vwidth == 0) {
+ if (vprec == 0) {
+ /* First element. */
+ VPRINT(vcnt, 0);
+ for (i = 1; i < vcnt; i++) {
+ /* Separator. */
+ PRINT(&vsep, 1);
+
+ /* Element. */
+ VPRINT(vcnt, i);
+ }
+ } else {
+ /* First element. */
+ VPRINT(vcnt, 0, prec);
+ for (i = 1; i < vcnt; i++) {
+ /* Separator. */
+ PRINT(&vsep, 1);
+
+ /* Element. */
+ VPRINT(vcnt, i, prec);
+ }
+ }
+ } else {
+ if (vprec == 0) {
+ /* First element. */
+ VPRINT(vcnt, 0, width);
+ for (i = 1; i < vcnt; i++) {
+ /* Separator. */
+ PRINT(&vsep, 1);
+
+ /* Element. */
+ VPRINT(vcnt, i, width);
+ }
+ } else {
+ /* First element. */
+ VPRINT(vcnt, 0, width, prec);
+ for (i = 1; i < vcnt; i++) {
+ /* Separator. */
+ PRINT(&vsep, 1);
+
+ /* Element. */
+ VPRINT(vcnt, i, width, prec);
+ }
+ }
+ }
+#undef VPRINT
+
+ if (vfmt != vfmt_buf)
+ free(vfmt);
+
+ continue;
+ }
+#endif /* ALTIVEC */
/*
* All reasonable formats wind up here. At this point, `cp'
* points to a string which (if not flags&LADJUST) should be
@@ -1401,6 +1734,11 @@
if (flags & LONGINT)
ADDTYPE(T_WINT);
else
+#ifdef ALTIVEC
+ if (flags & VECTOR)
+ ADDTYPE(T_VECTOR);
+ else
+#endif /* ALTIVEC */
ADDTYPE(T_INT);
break;
case 'D':
@@ -1418,6 +1756,11 @@
case 'f':
case 'g':
case 'G':
+#ifdef ALTIVEC
+ if (flags & VECTOR)
+ ADDTYPE(T_VECTOR);
+ else
+#endif /* ALTIVEC */
if (flags & LONGDBL)
ADDTYPE(T_LONG_DOUBLE);
else
@@ -1446,9 +1789,19 @@
flags |= LONGINT;
/*FALLTHROUGH*/
case 'o':
+#ifdef ALTIVEC
+ if (flags & VECTOR)
+ ADDTYPE(T_VECTOR);
+ else
+#endif /* ALTIVEC */
ADDUARG();
break;
case 'p':
+#ifdef ALTIVEC
+ if (flags & VECTOR)
+ ADDTYPE(T_VECTOR);
+ else
+#endif /* ALTIVEC */
ADDTYPE(TP_VOID);
break;
case 'S':
@@ -1466,6 +1819,11 @@
case 'u':
case 'X':
case 'x':
+#ifdef ALTIVEC
+ if (flags & VECTOR)
+ ADDTYPE(T_VECTOR);
+ else
+#endif /* ALTIVEC */
ADDUARG();
break;
default: /* "%?" prints ?, unless ? is NUL */
@@ -1532,7 +1890,7 @@
(*argtable) [n].sizearg = va_arg (ap, size_t);
break;
case TP_SIZET:
- (*argtable) [n].psizearg = va_arg (ap, ssize_t *);
+ (*argtable) [n].psizearg = va_arg (ap, size_t *);
break;
case T_INTMAXT:
(*argtable) [n].intmaxarg = va_arg (ap, intmax_t);
@@ -1551,6 +1909,12 @@
(*argtable) [n].longdoublearg = va_arg (ap, long double);
break;
#endif
+#ifdef ALTIVEC
+ case T_VECTOR:
+ if (hasAltivec)
+ ap = getvec( &((*argtable) [n]), NULL, 0, ap );
+ break;
+#endif /* ALTIVEC */
case TP_CHAR:
(*argtable) [n].pchararg = va_arg (ap, char *);
break;