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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [nonnull-1.c] - Rev 149
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/* Test for the "nonnull" function attribute. */ /* Origin: Jason Thorpe <thorpej@wasabisystems.com> */ /* { dg-do compile } */ /* { dg-options "-Wnonnull" } */ #include <stddef.h> extern void func1 (char *, char *, int) __attribute__((nonnull)); extern void func2 (char *, char *) __attribute__((nonnull(1))); extern void func3 (char *, int, char *, int) __attribute__((nonnull(1,3))); extern void func4 (char *, char *) __attribute__((nonnull(1))) __attribute__((nonnull(2))); void foo (int i1, int i2, int i3, char *cp1, char *cp2, char *cp3) { func1(cp1, cp2, i1); func1(NULL, cp2, i1); /* { dg-warning "null" "null with argless nonnull 1" } */ func1(cp1, NULL, i1); /* { dg-warning "null" "null with argless nonnull 2" } */ func1(cp1, cp2, 0); func2(cp1, NULL); func2(NULL, cp1); /* { dg-warning "null" "null with single explicit nonnull" } */ func3(NULL, i2, cp3, i3); /* { dg-warning "null" "null with explicit nonnull 1" } */ func3(cp3, i2, NULL, i3); /* { dg-warning "null" "null with explicit nonnull 3" } */ func1(i1 ? cp1 : NULL, cp2, i3); /* { dg-warning "null" "null with cond expr rhs" } */ func1(i1 ? NULL : cp1, cp2, i3); /* { dg-warning "null" "null with cond expr lhs" } */ func1(i1 ? (i2 ? cp1 : NULL) : cp2, cp3, i3); /* { dg-warning "null" "null with nested cond expr" } */ func4(NULL, cp1); /* { dg-warning "null" "null with multiple attributes 1" } */ func4(cp1, NULL); /* { dg-warning "null" "null with multiple attributes 2" } */ }
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