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jeremybenn |
/* Test for X/Open format extensions, as found in the
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Single Unix Specification and in Austin Group draft 7.
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*/
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/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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/* { dg-do compile } */
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/* { dg-options "-std=gnu99 -Wformat" } */
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#include "format.h"
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void
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foo (int i, unsigned int u, wint_t lc, wchar_t *ls, int *ip, double d,
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char *s, void *p, int *n, long int l, int i2, float *fp, long int *lp,
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va_list va)
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{
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/* The conversion specifiers C and S, for both printf and scanf,
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are X/Open extensions.
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*/
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printf ("%C", lc);
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printf ("%3C", lc);
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printf ("%.3C", lc); /* { dg-warning "precision" "precision with %C" } */
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printf ("%hC", lc); /* { dg-warning "length" "bad %hC" } */
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printf ("%hhC", lc); /* { dg-warning "length" "bad %hhC" } */
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printf ("%lC", lc); /* { dg-warning "length" "bad %lC" } */
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printf ("%llC", lc); /* { dg-warning "length" "bad %llC" } */
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printf ("%jC", lc); /* { dg-warning "length" "bad %jC" } */
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printf ("%zC", lc); /* { dg-warning "length" "bad %zC" } */
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printf ("%tC", lc); /* { dg-warning "length" "bad %tC" } */
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printf ("%LC", lc); /* { dg-warning "length" "bad %LC" } */
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printf ("%-C", lc);
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printf ("%+C", lc); /* { dg-warning "flag" "bad %+C" } */
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printf ("% C", lc); /* { dg-warning "flag" "bad % C" } */
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printf ("%#C", lc); /* { dg-warning "flag" "bad %#C" } */
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printf ("%0C", lc); /* { dg-warning "flag" "bad %0C" } */
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printf ("%'C", lc); /* { dg-warning "flag" "bad %'C" } */
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printf ("%S", ls);
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printf ("%3S", ls);
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printf ("%.3S", ls);
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printf ("%hS", ls); /* { dg-warning "length" "bad %hS" } */
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printf ("%hhS", ls); /* { dg-warning "length" "bad %hhS" } */
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printf ("%lS", ls); /* { dg-warning "length" "bad %lS" } */
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printf ("%llS", ls); /* { dg-warning "length" "bad %llS" } */
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printf ("%jS", ls); /* { dg-warning "length" "bad %jS" } */
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printf ("%zS", ls); /* { dg-warning "length" "bad %zS" } */
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printf ("%tS", ls); /* { dg-warning "length" "bad %tS" } */
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printf ("%LS", ls); /* { dg-warning "length" "bad %LS" } */
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printf ("%-S", ls);
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printf ("%+S", ls); /* { dg-warning "flag" "bad %+S" } */
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printf ("% S", ls); /* { dg-warning "flag" "bad % S" } */
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printf ("%#S", ls); /* { dg-warning "flag" "bad %#S" } */
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printf ("%0S", ls); /* { dg-warning "flag" "bad %0S" } */
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printf ("%'S", ls); /* { dg-warning "flag" "bad %'S" } */
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scanf ("%C", ls);
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scanf ("%S", ls);
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scanf ("%*C%*S");
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scanf ("%2C%3S", ls, ls);
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scanf ("%hC", ls); /* { dg-warning "length" "bad %hC" } */
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scanf ("%hhC", ls); /* { dg-warning "length" "bad %hhC" } */
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scanf ("%lC", ls); /* { dg-warning "length" "bad %lC" } */
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scanf ("%llC", ls); /* { dg-warning "length" "bad %llC" } */
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scanf ("%jC", ls); /* { dg-warning "length" "bad %jC" } */
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scanf ("%zC", ls); /* { dg-warning "length" "bad %zC" } */
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scanf ("%tC", ls); /* { dg-warning "length" "bad %tC" } */
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scanf ("%LC", ls); /* { dg-warning "length" "bad %LC" } */
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scanf ("%hS", ls); /* { dg-warning "length" "bad %hS" } */
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scanf ("%hhS", ls); /* { dg-warning "length" "bad %hhS" } */
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scanf ("%lS", ls); /* { dg-warning "length" "bad %lS" } */
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scanf ("%llS", ls); /* { dg-warning "length" "bad %llS" } */
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scanf ("%jS", ls); /* { dg-warning "length" "bad %jS" } */
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scanf ("%zS", ls); /* { dg-warning "length" "bad %zS" } */
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scanf ("%tS", ls); /* { dg-warning "length" "bad %tS" } */
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scanf ("%LS", ls); /* { dg-warning "length" "bad %LS" } */
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/* In C99 mode (even with extensions), %aS is a floating point
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format followed by an S.
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*/
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scanf ("%aS", fp);
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/* The printf flag character ' is an X/Open extension. */
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printf ("%'d%'i%'u%'f%'F%'g%'G", i, i, u, d, d, d, d);
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printf ("%'o", u); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'x", u); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'X", u); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'e", d); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'E", d); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'a", d); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'A", d); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'c", i); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'s", s); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'p", p); /* { dg-warning "flag" "bad use of ' flag" } */
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printf ("%'n", n); /* { dg-warning "flag" "bad use of ' flag" } */
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/* The use of operand number $ formats is an X/Open extension. */
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scanf ("%1$d", ip);
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printf ("%1$d", i);
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printf ("%1$d", l); /* { dg-warning "arg 2|argument 2" "mismatched args with $ format" } */
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printf ("%3$*2$.*1$ld", i2, i, l);
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printf ("%4$ld%7$ld%5$d%6$d%3$d%1$d%2$d", i, i, i, l, i, i, l);
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scanf ("%4$ld%7$ld%5$d%6$d%3$d%1$d%2$d", ip, ip, ip, lp, ip, ip, lp);
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printf ("%1$d%d", i, i); /* { dg-warning "missing" "mixing $ and non-$ formats" } */
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printf ("%%%1$d%%%2$d", i, i);
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printf ("%d%2$d", i); /* { dg-warning "used after format" "mixing $ and non-$ formats" } */
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printf ("%1$*d", i, i); /* { dg-warning "missing" "mixing $ and non-$ formats" } */
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printf ("%*1$d", i); /* { dg-warning "missing" "mixing $ and non-$ formats" } */
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scanf ("%1$d%d", ip, ip); /* { dg-warning "missing" "mixing $ and non-$ formats" } */
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scanf ("%*f%%%1$d%%%2$d", ip, ip);
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printf ("%2$d", i); /* { dg-warning "operand" "$ number too large" } */
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printf ("%0$d", i); /* { dg-warning "operand" "$ number too small" } */
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printf ("%3$d%1$d", i, i, i); /* { dg-warning "before used" "unused $ operand" } */
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printf ("%2$d%1$d", i, i, i); /* { dg-warning "unused" "unused $ operand" } */
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vprintf ("%3$d%1$d", va); /* { dg-warning "before used" "unused $ operand" } */
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/* With scanf formats, gaps in the used arguments are allowed only if the
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arguments are all pointers. In such a case, should only give the lesser
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warning about unused arguments rather than the more serious one about
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argument gaps. */
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scanf ("%3$d%1$d", ip, ip, ip); /* { dg-bogus "before used" "unused $ scanf pointer operand" } */
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/* { dg-warning "unused" "unused $ scanf pointer operand" { target *-*-* } 112 } */
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/* If there are non-pointer arguments unused at the end, this is also OK. */
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scanf ("%3$d%1$d", ip, ip, ip, i); /* { dg-bogus "before used" "unused $ scanf pointer operand" } */
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/* { dg-warning "unused" "unused $ scanf pointer operand" { target *-*-* } 115 } */
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scanf ("%3$d%1$d", ip, i, ip); /* { dg-warning "before used" "unused $ scanf non-pointer operand" } */
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/* Can't check the arguments in the vscanf case, so should suppose the
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lesser problem. */
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vscanf ("%3$d%1$d", va); /* { dg-bogus "before used" "unused $ scanf pointer operand" } */
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/* { dg-warning "unused" "unused $ scanf pointer operand" { target *-*-* } 120 } */
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scanf ("%2$*d%1$d", ip, ip); /* { dg-warning "operand" "operand number with suppression" } */
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printf ("%1$d%1$d", i);
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scanf ("%1$d%1$d", ip); /* { dg-warning "more than once" "multiple use of scanf argument" } */
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}
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