diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/format/ext-2.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/format/ext-2.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/format/ext-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/format/ext-2.c new file mode 100644 index 000000000..466991b59 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/format/ext-2.c @@ -0,0 +1,73 @@ +/* Test for format extensions beyond the C standard and X/Open standard. + Test for scanf formats. +*/ +/* Origin: Joseph Myers <jsm28@cam.ac.uk> */ +/* { dg-do compile } */ +/* { dg-options "-std=gnu99 -Wformat" } */ + +#include "format.h" + +void +foo (quad_t *qp, u_quad_t *uqp, quad_t *qn, long long int *llp, + unsigned long long int *ullp, float *fp, char *s, void **pp, wchar_t *ls, + int *ip, unsigned int *up) +{ + /* As an extension, GCC allows the BSD length "q" for integer formats. + This is largely obsoleted in C99 by %j, %ll and SCNd64. + */ + scanf ("%qd%qi%qo%qu%qx%qX%qn", qp, qp, uqp, uqp, uqp, uqp, qn); + scanf ("%qf", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qF", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qe", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qE", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qg", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qG", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qa", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qA", fp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qs", s); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%q[abc]", s); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qc", s); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qp", pp); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qC", ls); /* { dg-warning "length" "bad use of %q" } */ + scanf ("%qS", ls); /* { dg-warning "length" "bad use of %q" } */ + /* As an extension, GCC allows the length "L" on integer formats + (but not %n) as a synonym for "ll". + This should be considered deprecated. + */ + scanf ("%Ld%Li%Lo%Lu%Lx%LX", llp, llp, ullp, ullp, ullp, ullp); + /* glibc also supports flags ' and I on scanf formats. The ' flag applies + to all formats scanning decimal values; the I flag only to decimal integer + formats. + */ + scanf ("%'d%'i%'u%'a%'A%'e%'E%'f%'F%'g%'G", ip, ip, up, fp, fp, fp, fp, + fp, fp, fp, fp); + scanf ("%'o", up); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'x", up); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'X", up); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'n", ip); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'s", s); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'[abc]", s); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'c", s); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'p", pp); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'C", ls); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%'S", ls); /* { dg-warning "flag" "bad use of ' flag" } */ + scanf ("%Id%Ii%Iu", ip, ip, up); + scanf ("%Ia", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%IA", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%Ie", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%IE", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%If", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%IF", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%Ig", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%IG", fp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%Io", up); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%Ix", up); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%IX", up); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%In", ip); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%Is", s); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%I[abc]", s); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%Ic", s); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%Ip", pp); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%IC", ls); /* { dg-warning "flag" "bad use of I flag" } */ + scanf ("%IS", ls); /* { dg-warning "flag" "bad use of I flag" } */ +} |