File: format-strings-non-iso.c

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (29 lines) | stat: -rw-r--r-- 1,960 bytes parent folder | download | duplicates (37)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
// RUN: %clang_cc1 -triple i686-linux-gnu -fsyntax-only -verify -std=c99 -Wformat-non-iso %s

int printf(const char *restrict, ...);
int scanf(const char * restrict, ...);

void f(void) {
  char *cp;

  // The 'q' length modifier.
  printf("%qd", (long long)42); // expected-warning{{'q' length modifier is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}
  scanf("%qd", (long long *)0); // expected-warning{{'q' length modifier is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}

  // The 'm' length modifier.
  scanf("%ms", &cp); // expected-warning{{'m' length modifier is not supported by ISO C}}

  // The 'S' and 'C' conversion specifiers.
  printf("%S", L"foo"); // expected-warning{{'S' conversion specifier is not supported by ISO C}}
  printf("%C", L'x'); // expected-warning{{'C' conversion specifier is not supported by ISO C}}

  // Combining 'L' with an integer conversion specifier.
  printf("%Li", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'i' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}
  printf("%Lo", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'o' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}
  printf("%Lu", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'u' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}
  printf("%Lx", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'x' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}
  printf("%LX", (long long)42); // expected-warning{{using length modifier 'L' with conversion specifier 'X' is not supported by ISO C}} expected-note{{did you mean to use 'll'?}}

  // Positional arguments.
  printf("%1$d", 42); // expected-warning{{positional arguments are not supported by ISO C}}
}