/* Test for warnings for extra format arguments being disabled by
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/* Test for warnings for extra format arguments being disabled by
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-Wno-format-extra-args. Test which warnings still apply with $
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-Wno-format-extra-args. Test which warnings still apply with $
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operand numbers. */
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operand numbers. */
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/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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/* { dg-do compile } */
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/* { dg-do compile } */
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/* { dg-options "-std=gnu99 -Wformat -Wno-format-extra-args" } */
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/* { dg-options "-std=gnu99 -Wformat -Wno-format-extra-args" } */
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#include "format.h"
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#include "format.h"
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void
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void
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foo (int i, int *ip, va_list va)
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foo (int i, int *ip, va_list va)
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{
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{
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printf ("%3$d%1$d", i, i, i); /* { dg-warning "before used" "unused $ operand" } */
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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);
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printf ("%2$d%1$d", i, i, i);
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vprintf ("%3$d%1$d", va); /* { dg-warning "before used" "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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/* 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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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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warning about unused arguments rather than the more serious one about
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argument gaps. */
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argument gaps. */
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scanf ("%3$d%1$d", ip, ip, ip);
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scanf ("%3$d%1$d", ip, ip, ip);
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/* If there are non-pointer arguments unused at the end, this is also OK. */
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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);
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scanf ("%3$d%1$d", ip, ip, ip, i);
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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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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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/* Can't check the arguments in the vscanf case, so should suppose the
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lesser problem. */
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lesser problem. */
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vscanf ("%3$d%1$d", va);
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vscanf ("%3$d%1$d", va);
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}
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}
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