From 654d7a33b25ec457d78b7e34773eb5fcad764a2d Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 9 Jan 2001 10:35:21 +0000 Subject: [PATCH] * gcc.dg/format/attr-2.c, gcc.dg/format/attr-3.c: New tests. From-SVN: r38824 --- gcc/testsuite/ChangeLog | 4 ++ gcc/testsuite/gcc.dg/format/attr-2.c | 67 ++++++++++++++++++++++++ gcc/testsuite/gcc.dg/format/attr-3.c | 78 ++++++++++++++++++++++++++++ 3 files changed, 149 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/format/attr-2.c create mode 100644 gcc/testsuite/gcc.dg/format/attr-3.c diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a7e985e533b..5eac7717f7e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2001-01-09 Joseph S. Myers + + * gcc.dg/format/attr-2.c, gcc.dg/format/attr-3.c: New tests. + 2000-01-08 Loren J. Rittle * gcc.c-torture/execute/ieee/mzero2.x: Adjust statement of diff --git a/gcc/testsuite/gcc.dg/format/attr-2.c b/gcc/testsuite/gcc.dg/format/attr-2.c new file mode 100644 index 00000000000..54d4655ef2c --- /dev/null +++ b/gcc/testsuite/gcc.dg/format/attr-2.c @@ -0,0 +1,67 @@ +/* Test for format attributes: test use of __attribute__. */ +/* Origin: Joseph Myers */ +/* { dg-do compile } */ +/* { dg-options "-std=gnu99 -Wformat" } */ + +#include "format.h" + +extern void tformatprintf (const char *, ...) __attribute__((format(printf, 1, 2))); +extern void tformat__printf__ (const char *, ...) __attribute__((format(__printf__, 1, 2))); +extern void tformatscanf (const char *, ...) __attribute__((format(scanf, 1, 2))); +extern void tformat__scanf__ (const char *, ...) __attribute__((format(__scanf__, 1, 2))); +extern void tformatstrftime (const char *) __attribute__((format(strftime, 1, 0))); +extern void tformat__strftime__ (const char *) __attribute__((format(__strftime__, 1, 0))); +extern void tformatstrfmon (const char *, ...) __attribute__((format(strfmon, 1, 2))); +extern void tformat__strfmon__ (const char *, ...) __attribute__((format(__strfmon__, 1, 2))); +extern void t__format__printf (const char *, ...) __attribute__((__format__(printf, 1, 2))); +extern void t__format____printf__ (const char *, ...) __attribute__((__format__(__printf__, 1, 2))); +extern void t__format__scanf (const char *, ...) __attribute__((__format__(scanf, 1, 2))); +extern void t__format____scanf__ (const char *, ...) __attribute__((__format__(__scanf__, 1, 2))); +extern void t__format__strftime (const char *) __attribute__((__format__(strftime, 1, 0))); +extern void t__format____strftime__ (const char *) __attribute__((__format__(__strftime__, 1, 0))); +extern void t__format__strfmon (const char *, ...) __attribute__((__format__(strfmon, 1, 2))); +extern void t__format____strfmon__ (const char *, ...) __attribute__((__format__(__strfmon__, 1, 2))); + +extern char *tformat_arg (const char *) __attribute__((format_arg(1))); +extern char *t__format_arg__ (const char *) __attribute__((__format_arg__(1))); + +void +foo (int i, int *ip, double d) +{ + tformatprintf ("%d", i); + tformatprintf ("%"); /* { dg-warning "format" "attribute format printf" } */ + tformat__printf__ ("%d", i); + tformat__printf__ ("%"); /* { dg-warning "format" "attribute format __printf__" } */ + tformatscanf ("%d", ip); + tformatscanf ("%"); /* { dg-warning "format" "attribute format scanf" } */ + tformat__scanf__ ("%d", ip); + tformat__scanf__ ("%"); /* { dg-warning "format" "attribute format __scanf__" } */ + tformatstrftime ("%a"); + tformatstrftime ("%"); /* { dg-warning "format" "attribute format strftime" } */ + tformat__strftime__ ("%a"); + tformat__strftime__ ("%"); /* { dg-warning "format" "attribute format __strftime__" } */ + tformatstrfmon ("%n", d); + tformatstrfmon ("%"); /* { dg-warning "format" "attribute format strfmon" } */ + tformat__strfmon__ ("%n", d); + tformat__strfmon__ ("%"); /* { dg-warning "format" "attribute format __strfmon__" } */ + t__format__printf ("%d", i); + t__format__printf ("%"); /* { dg-warning "format" "attribute __format__ printf" } */ + t__format____printf__ ("%d", i); + t__format____printf__ ("%"); /* { dg-warning "format" "attribute __format__ __printf__" } */ + t__format__scanf ("%d", ip); + t__format__scanf ("%"); /* { dg-warning "format" "attribute __format__ scanf" } */ + t__format____scanf__ ("%d", ip); + t__format____scanf__ ("%"); /* { dg-warning "format" "attribute __format__ __scanf__" } */ + t__format__strftime ("%a"); + t__format__strftime ("%"); /* { dg-warning "format" "attribute __format__ strftime" } */ + t__format____strftime__ ("%a"); + t__format____strftime__ ("%"); /* { dg-warning "format" "attribute __format__ __strftime__" } */ + t__format__strfmon ("%n", d); + t__format__strfmon ("%"); /* { dg-warning "format" "attribute __format__ strfmon" } */ + t__format____strfmon__ ("%n", d); + t__format____strfmon__ ("%"); /* { dg-warning "format" "attribute __format__ __strfmon__" } */ + tformatprintf (tformat_arg ("%d"), i); + tformatprintf (tformat_arg ("%")); /* { dg-warning "format" "attribute format_arg" } */ + tformatprintf (t__format_arg__ ("%d"), i); + tformatprintf (t__format_arg__ ("%")); /* { dg-warning "format" "attribute __format_arg__" } */ +} diff --git a/gcc/testsuite/gcc.dg/format/attr-3.c b/gcc/testsuite/gcc.dg/format/attr-3.c new file mode 100644 index 00000000000..2e3c6326a9b --- /dev/null +++ b/gcc/testsuite/gcc.dg/format/attr-3.c @@ -0,0 +1,78 @@ +/* Test for format attributes: test bad uses of __attribute__. */ +/* Origin: Joseph Myers */ +/* { dg-do compile } */ +/* { dg-options "-std=gnu99 -Wformat" } */ + +#include "format.h" + +/* Proper uses of the attributes. */ +extern void fa0 (const char *, ...) __attribute__((format(printf, 1, 2))); +extern void fa1 (char *, ...) __attribute__((format(printf, 1, 2))); +extern char *fa2 (const char *) __attribute__((format_arg(1))); +extern char *fa3 (char *) __attribute__((format_arg(1))); + +/* Uses with too few or too many arguments. */ +extern void fb0 (const char *, ...) __attribute__((format)); /* { dg-error "wrong number of arguments" "bad format" } */ +extern void fb1 (const char *, ...) __attribute__((format())); /* { dg-error "wrong number of arguments" "bad format" } */ +extern void fb2 (const char *, ...) __attribute__((format(printf))); /* { dg-error "wrong number of arguments" "bad format" } */ +extern void fb3 (const char *, ...) __attribute__((format(printf, 1))); /* { dg-error "wrong number of arguments" "bad format" } */ +extern void fb4 (const char *, ...) __attribute__((format(printf, 1, 2, 3))); /* { dg-error "wrong number of arguments" "bad format" } */ + +extern void fc1 (const char *) __attribute__((format_arg)); /* { dg-error "wrong number of arguments" "bad format_arg" } */ +extern void fc2 (const char *) __attribute__((format_arg())); /* { dg-error "wrong number of arguments" "bad format_arg" } */ +extern void fc3 (const char *) __attribute__((format_arg(1, 2))); /* { dg-error "wrong number of arguments" "bad format_arg" } */ + +/* These attributes presently only apply to declarations, not to types. + Eventually, they should be usable with declarators for function types + anywhere, but still not with structure/union/enum types. */ +struct s0 { int i; } __attribute__((format(printf, 1, 2))); /* { dg-error "does not apply" "format on struct" } */ +union u0 { int i; } __attribute__((format(printf, 1, 2))); /* { dg-error "does not apply" "format on union" } */ +enum e0 { E0V0 } __attribute__((format(printf, 1, 2))); /* { dg-error "does not apply" "format on enum" } */ + +struct s1 { int i; } __attribute__((format_arg(1))); /* { dg-error "does not apply" "format_arg on struct" } */ +union u1 { int i; } __attribute__((format_arg(1))); /* { dg-error "does not apply" "format_arg on union" } */ +enum e1 { E1V0 } __attribute__((format_arg(1))); /* { dg-error "does not apply" "format_arg on enum" } */ + +/* At present, only functions can be declared with these attributes. + Once they can be applied to function types in function pointers, etc., + these tests should be removed, and tests should be added (say in a new + testcase attr-.c) that such attributes work and calls through such + function pointers (etc.) get checked. */ +extern void (*fd0) (const char *, ...) __attribute__((format(printf, 1, 2))); /* { dg-error "non-function" "format on non-function" } */ +extern char *(*fd1) (const char *) __attribute__((format_arg(1))); /* { dg-error "non-function" "format on non-function" } */ + +/* The format type must be an identifier, one of those recognised. */ +extern void fe0 (const char *, ...) __attribute__((format(12345, 1, 2))); /* { dg-error "format specifier" "non-id format" } */ +extern void fe1 (const char *, ...) __attribute__((format(nosuch, 1, 2))); /* { dg-warning "format function type" "unknown format" } */ + +/* Both the numbers must be integer constant expressions. */ +extern void ff0 (const char *, ...) __attribute__((format(printf, 3-2, (long long)(10/5)))); +int foo; +extern void ff1 (const char *, ...) __attribute__((format(printf, foo, 10/5))); /* { dg-error "invalid operand" "bad number" } */ +extern void ff2 (const char *, ...) __attribute__((format(printf, 3-2, foo))); /* { dg-error "invalid operand" "bad number" } */ +extern char *ff3 (const char *) __attribute__((format_arg(3-2))); +extern char *ff4 (const char *) __attribute__((format_arg(foo))); /* { dg-error "invalid operand" "bad format_arg number" } */ + +/* The format string argument must precede the arguments to be formatted. + This includes if no parameter types are specified (which is not valid ISO + C for variadic functions). */ +extern void fg0 () __attribute__((format(printf, 1, 2))); +extern void fg1 () __attribute__((format(printf, 1, 0))); +extern void fg2 () __attribute__((format(printf, 1, 1))); /* { dg-error "follows" "bad number order" } */ +extern void fg3 () __attribute__((format(printf, 2, 1))); /* { dg-error "follows" "bad number order" } */ + +/* The format string argument must be a string type, and the arguments to + be formatted must be the "...". */ +extern void fh0 (int, ...) __attribute__((format(printf, 1, 2))); /* { dg-error "not a string" "format int string" } */ +extern void fh1 (signed char *, ...) __attribute__((format(printf, 1, 2))); /* { dg-error "not a string" "signed char string" } */ +extern void fh2 (unsigned char *, ...) __attribute__((format(printf, 1, 2))); /* { dg-error "not a string" "unsigned char string" } */ +extern void fh3 (const char *, ...) __attribute__((format(printf, 1, 3))); /* { dg-error "is not" "not ..." } */ +extern void fh4 (const char *, int, ...) __attribute__((format(printf, 1, 2))); /* { dg-error "is not" "not ..." } */ + +/* format_arg formats must take and return a string. */ +extern char *fi0 (int) __attribute__((format_arg(1))); /* { dg-error "not a string" "format_arg int string" } */ +extern char *fi1 (signed char *) __attribute__((format_arg(1))); /* { dg-error "not a string" "format_arg signed char string" } */ +extern char *fi2 (unsigned char *) __attribute__((format_arg(1))); /* { dg-error "not a string" "format_arg unsigned char string" } */ +extern int fi3 (const char *) __attribute__((format_arg(1))); /* { dg-error "not return string" "format_arg ret int string" } */ +extern signed char *fi4 (const char *) __attribute__((format_arg(1))); /* { dg-error "not return string" "format_arg ret signed char string" } */ +extern unsigned char *fi5 (const char *) __attribute__((format_arg(1))); /* { dg-error "not return string" "format_arg ret unsigned char string" } */ -- 2.30.2