blob: e022b6d8fd57d8adfea3b31962ffb67e03105653 [file] [log] [blame]
// RUN: clang -fsyntax-only -verify %s
void f() {
int *ptr = malloc(sizeof(int) * 10); // expected-warning{{implicitly declaring C library function 'malloc' with type}} \
// expected-note{{please include the header <stdlib.h> or explicitly provide a declaration for 'malloc'}} \
// expected-note{{'malloc' is a builtin with type 'void *}}
}
void *alloca(__SIZE_TYPE__); // redeclaration okay
int *calloc(__SIZE_TYPE__, __SIZE_TYPE__); // expected-warning{{incompatible redeclaration of library function 'calloc'}} \
// expected-note{{'calloc' is a builtin with type 'void *}}
void g(int malloc) { // okay: these aren't functions
int calloc = 1;
}
void h() {
int malloc(int); // expected-warning{{incompatible redeclaration of library function 'malloc'}}
int strcpy(int); // expected-warning{{incompatible redeclaration of library function 'strcpy'}} \
// expected-note{{'strcpy' is a builtin with type 'char *(char *, char const *)'}}
}
void f2() {
fprintf(0, "foo"); // expected-error{{implicit declaration of 'fprintf' requires inclusion of the header <stdio.h>}}
}
// PR2892
void __builtin_object_size(); // expected-error{{conflicting types}} \
// expected-note{{'__builtin_object_size' is a builtin with type}}
int a[10];
int f0() {
return __builtin_object_size(&a); // expected-error {{too few arguments to function}}
}
void * realloc(void *p, int size) { // expected-warning{{incompatible redeclaration of library function 'realloc'}} \
// expected-note{{'realloc' is a builtin with type 'void *(void *,}}
return p;
}
// PR3855
void snprintf(); // expected-warning{{incompatible redeclaration of library function 'snprintf'}} \
// expected-note{{'snprintf' is a builtin}}
int
main(int argc, char *argv[])
{
snprintf();
}
void snprintf() { }