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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [gcc.dg/] [cast-3.c] - Rev 12
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/* Test diagnostics for bad or doubtful casts. Test with -pedantic-errors. */ /* Origin: Joseph Myers <joseph@codesourcery.com> */ /* { dg-do compile } */ /* { dg-options "-std=gnu99 -pedantic-errors" } */ struct s { int a; } sv; union u { int a; } uv; int i; long l; char c; void *p; float fv; void f (void) { (int []) p; /* { dg-error "error: cast specifies array type" } */ (int ()) p; /* { dg-error "error: cast specifies function type" } */ (struct s) sv; /* { dg-error "error: ISO C forbids casting nonscalar to the same type" } */ (union u) uv; /* { dg-error "error: ISO C forbids casting nonscalar to the same type" } */ (struct s) i; /* { dg-error "error: conversion to non-scalar type requested" } */ (union u) i; /* { dg-error "error: ISO C forbids casts to union type" } */ (union u) l; /* { dg-error "error: cast to union type from type not present in union" } */ (int) sv; /* { dg-error "error: aggregate value used where an integer was expected" } */ (int) uv; /* { dg-error "error: aggregate value used where an integer was expected" } */ (float) sv; /* { dg-error "error: aggregate value used where a float was expected" } */ (float) uv; /* { dg-error "error: aggregate value used where a float was expected" } */ (_Complex double) sv; /* { dg-error "error: aggregate value used where a complex was expected" } */ (_Complex double) uv; /* { dg-error "error: aggregate value used where a complex was expected" } */ (void *) sv; /* { dg-error "error: cannot convert to a pointer type" } */ (void *) uv; /* { dg-error "error: cannot convert to a pointer type" } */ (_Bool) sv; /* { dg-error "error: used struct type value where scalar is required" } */ (_Bool) uv; /* { dg-error "error: used union type value where scalar is required" } */ (void) sv; (const void) uv; (void *) c; /* { dg-warning "warning: cast to pointer from integer of different size" } */ (void *) (char) 1; (char) p; /* { dg-warning "warning: cast from pointer to integer of different size" } */ (char) (void *) 1; }