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37faed97c1
Some of the magic functions take arguments of arbitrary type. However, for semantic correctness, the compiler still requires a declaration of these functions with the correct type. Since C does not have argument-type-overloaded function, this made those functions hard to use in C code. Improve this situation by allowing arbitrary suffixes in the affected magic functions' names, thus allowing the user to create different declarations for different types. A patch by Keno Fischer! Differential Revision: https://reviews.llvm.org/D30589 llvm-svn: 297325
26 lines
1.0 KiB
C
26 lines
1.0 KiB
C
// RUN: %clang_cc1 -triple i386-apple-darwin10 -analyze -analyzer-checker=core.builtin,debug.ExprInspection,unix.cstring -verify %s
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struct S {
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int z;
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};
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void clang_analyzer_explain_int(int);
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void clang_analyzer_explain_voidp(void *);
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void clang_analyzer_explain_S(struct S);
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int glob;
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void test_1(int param, void *ptr) {
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clang_analyzer_explain_voidp(&glob); // expected-warning-re{{{{^pointer to global variable 'glob'$}}}}
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clang_analyzer_explain_int(param); // expected-warning-re{{{{^argument 'param'$}}}}
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clang_analyzer_explain_voidp(ptr); // expected-warning-re{{{{^argument 'ptr'$}}}}
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if (param == 42)
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clang_analyzer_explain_int(param); // expected-warning-re{{{{^signed 32-bit integer '42'$}}}}
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}
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void test_2(struct S s) {
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clang_analyzer_explain_S(s); //expected-warning-re{{{{^lazily frozen compound value of parameter 's'$}}}}
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clang_analyzer_explain_voidp(&s); // expected-warning-re{{{{^pointer to parameter 's'$}}}}
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clang_analyzer_explain_int(s.z); // expected-warning-re{{{{^initial value of field 'z' of parameter 's'$}}}}
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}
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