return Ctx.DoubleTy;
}
+ if (CS.getKind() == ConversionSpecifier::nArg) {
+ switch (LM.getKind()) {
+ case LengthModifier::None:
+ return ArgType::PtrTo(Ctx.IntTy);
+ case LengthModifier::AsChar:
+ return ArgType::PtrTo(Ctx.SignedCharTy);
+ case LengthModifier::AsShort:
+ return ArgType::PtrTo(Ctx.ShortTy);
+ case LengthModifier::AsLong:
+ return ArgType::PtrTo(Ctx.LongTy);
+ case LengthModifier::AsLongLong:
+ case LengthModifier::AsQuad:
+ return ArgType::PtrTo(Ctx.LongLongTy);
+ case LengthModifier::AsIntMax:
+ return ArgType::PtrTo(ArgType(Ctx.getIntMaxType(), "intmax_t"));
+ case LengthModifier::AsSizeT:
+ return ArgType(); // FIXME: ssize_t
+ case LengthModifier::AsPtrDiff:
+ return ArgType::PtrTo(ArgType(Ctx.getPointerDiffType(), "ptrdiff_t"));
+ case LengthModifier::AsLongDouble:
+ return ArgType(); // FIXME: Is this a known extension?
+ case LengthModifier::AsAllocate:
+ case LengthModifier::AsMAllocate:
+ return ArgType::Invalid();
+ }
+ }
+
switch (CS.getKind()) {
case ConversionSpecifier::sArg:
if (LM.getKind() == LengthModifier::AsWideChar) {
return ArgType(Ctx.WCharTy, "wchar_t");
case ConversionSpecifier::pArg:
return ArgType::CPointerTy;
- case ConversionSpecifier::nArg:
- return ArgType::PtrTo(Ctx.IntTy);
case ConversionSpecifier::ObjCObjArg:
return ArgType::ObjCPointerTy;
default:
// Write-back.
case ConversionSpecifier::nArg:
- return ArgType::PtrTo(Ctx.IntTy);
+ switch (LM.getKind()) {
+ case LengthModifier::None:
+ return ArgType::PtrTo(Ctx.IntTy);
+ case LengthModifier::AsChar:
+ return ArgType::PtrTo(Ctx.SignedCharTy);
+ case LengthModifier::AsShort:
+ return ArgType::PtrTo(Ctx.ShortTy);
+ case LengthModifier::AsLong:
+ return ArgType::PtrTo(Ctx.LongTy);
+ case LengthModifier::AsLongLong:
+ case LengthModifier::AsQuad:
+ return ArgType::PtrTo(Ctx.LongLongTy);
+ case LengthModifier::AsIntMax:
+ return ArgType::PtrTo(ArgType(Ctx.getIntMaxType(), "intmax_t"));
+ case LengthModifier::AsSizeT:
+ return ArgType(); // FIXME: ssize_t
+ case LengthModifier::AsPtrDiff:
+ return ArgType::PtrTo(ArgType(Ctx.getPointerDiffType(), "ptrdiff_t"));
+ case LengthModifier::AsLongDouble:
+ return ArgType(); // FIXME: Is this a known extension?
+ case LengthModifier::AsAllocate:
+ case LengthModifier::AsMAllocate:
+ return ArgType::Invalid();
+ }
default:
break;
void test_writeback(int *x) {
scanf("%n", (void*)0); // expected-warning{{format specifies type 'int *' but the argument has type 'void *'}}
scanf("%n %c", x, x); // expected-warning{{format specifies type 'char *' but the argument has type 'int *'}}
+
+ scanf("%hhn", (signed char*)0); // no-warning
+ scanf("%hhn", (char*)0); // no-warning
+ scanf("%hhn", (unsigned char*)0); // no-warning
+ scanf("%hhn", (int*)0); // expected-warning{{format specifies type 'signed char *' but the argument has type 'int *'}}
+
+ scanf("%hn", (short*)0); // no-warning
+ scanf("%hn", (unsigned short*)0); // no-warning
+ scanf("%hn", (int*)0); // expected-warning{{format specifies type 'short *' but the argument has type 'int *'}}
+
+ scanf("%n", (int*)0); // no-warning
+ scanf("%n", (unsigned int*)0); // no-warning
+ scanf("%n", (char*)0); // expected-warning{{format specifies type 'int *' but the argument has type 'char *'}}
+
+ scanf("%ln", (long*)0); // no-warning
+ scanf("%ln", (unsigned long*)0); // no-warning
+ scanf("%ln", (int*)0); // expected-warning{{format specifies type 'long *' but the argument has type 'int *'}}
+
+ scanf("%lln", (long long*)0); // no-warning
+ scanf("%lln", (unsigned long long*)0); // no-warning
+ scanf("%lln", (int*)0); // expected-warning{{format specifies type 'long long *' but the argument has type 'int *'}}
+
+ scanf("%qn", (long long*)0); // no-warning
+ scanf("%qn", (unsigned long long*)0); // no-warning
+ scanf("%qn", (int*)0); // expected-warning{{format specifies type 'long long *' but the argument has type 'int *'}}
+
}
void test_qualifiers(const int *cip, volatile int* vip,
// ptrdiff_t
printf("%td", (double)42); // expected-warning {{format specifies type 'ptrdiff_t' (aka 'long') but the argument has type 'double'}}
}
+
+void test_writeback(void) {
+ printf("%jn", (long*)0); // no-warning
+ printf("%jn", (unsigned long*)0); // no-warning
+ printf("%jn", (int*)0); // expected-warning{{format specifies type 'intmax_t *' (aka 'long *') but the argument has type 'int *'}}
+
+ printf("%zn", (long*)0); // no-warning
+ // FIXME: Warn about %zn with non-ssize_t argument.
+
+ printf("%tn", (long*)0); // no-warning
+ printf("%tn", (unsigned long*)0); // no-warning
+ printf("%tn", (int*)0); // expected-warning{{format specifies type 'ptrdiff_t *' (aka 'long *') but the argument has type 'int *'}}
+}
char *b;
printf("%n", b); // expected-warning{{format specifies type 'int *' but the argument has type 'char *'}}
printf("%n", &x); // no-warning
+
+ printf("%hhn", (signed char*)0); // no-warning
+ printf("%hhn", (char*)0); // no-warning
+ printf("%hhn", (unsigned char*)0); // no-warning
+ printf("%hhn", (int*)0); // expected-warning{{format specifies type 'signed char *' but the argument has type 'int *'}}
+
+ printf("%hn", (short*)0); // no-warning
+ printf("%hn", (unsigned short*)0); // no-warning
+ printf("%hn", (int*)0); // expected-warning{{format specifies type 'short *' but the argument has type 'int *'}}
+
+ printf("%n", (int*)0); // no-warning
+ printf("%n", (unsigned int*)0); // no-warning
+ printf("%n", (char*)0); // expected-warning{{format specifies type 'int *' but the argument has type 'char *'}}
+
+ printf("%ln", (long*)0); // no-warning
+ printf("%ln", (unsigned long*)0); // no-warning
+ printf("%ln", (int*)0); // expected-warning{{format specifies type 'long *' but the argument has type 'int *'}}
+
+ printf("%lln", (long long*)0); // no-warning
+ printf("%lln", (unsigned long long*)0); // no-warning
+ printf("%lln", (int*)0); // expected-warning{{format specifies type 'long long *' but the argument has type 'int *'}}
+
+ printf("%qn", (long long*)0); // no-warning
+ printf("%qn", (unsigned long long*)0); // no-warning
+ printf("%qn", (int*)0); // expected-warning{{format specifies type 'long long *' but the argument has type 'int *'}}
+
+ printf("%Ln", 0); // expected-warning{{length modifier 'L' results in undefined behavior or no effect with 'n' conversion specifier}}
}
void check_invalid_specifier(FILE* fp, char *buf)