llvm-capstone/clang/test/Analysis/enum-cast-out-of-range.c
Aaron Ballman 0dd49a5628 Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the eighth batch of tests being updated (there are a
significant number of other tests left to be updated).
2022-02-12 07:25:06 -05:00

35 lines
1.3 KiB
C

// RUN: %clang_analyze_cc1 \
// RUN: -analyzer-checker=core,alpha.cplusplus.EnumCastOutOfRange \
// RUN: -verify %s
enum En_t {
En_0 = -4,
En_1,
En_2 = 1,
En_3,
En_4 = 4
};
void unscopedUnspecifiedCStyle(void) {
enum En_t Below = (enum En_t)(-5); // expected-warning {{not in the valid range}}
enum En_t NegVal1 = (enum En_t)(-4); // OK.
enum En_t NegVal2 = (enum En_t)(-3); // OK.
enum En_t InRange1 = (enum En_t)(-2); // expected-warning {{not in the valid range}}
enum En_t InRange2 = (enum En_t)(-1); // expected-warning {{not in the valid range}}
enum En_t InRange3 = (enum En_t)(0); // expected-warning {{not in the valid range}}
enum En_t PosVal1 = (enum En_t)(1); // OK.
enum En_t PosVal2 = (enum En_t)(2); // OK.
enum En_t InRange4 = (enum En_t)(3); // expected-warning {{not in the valid range}}
enum En_t PosVal3 = (enum En_t)(4); // OK.
enum En_t Above = (enum En_t)(5); // expected-warning {{not in the valid range}}
}
enum En_t unused;
void unusedExpr(void) {
// Following line is not something that EnumCastOutOfRangeChecker should
// evaluate. Checker should either ignore this line or process it without
// producing any warnings. However, compilation will (and should) still
// generate a warning having nothing to do with this checker.
unused; // expected-warning {{expression result unused}}
}