derek.holloway
7502bf64a4
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156 lines
8.2 KiB
C
156 lines
8.2 KiB
C
// RUN: %clang_cc1 -x c -std=c2x -fsyntax-only -verify -Wno-string-plus-int -Wno-unused-value %s
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// RUN: %clang_cc1 -x c -std=c2x -fsyntax-only -verify -Wno-string-plus-int -Wno-unused-value %s -fexperimental-new-constant-interpreter
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// RUN: %clang_cc1 -x c++ -std=c++23 -fsyntax-only -verify -Wno-string-plus-int -Wno-unused-value %s
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// RUN: %clang_cc1 -x c++ -std=c++23 -fsyntax-only -verify -Wno-string-plus-int -Wno-unused-value %s -fexperimental-new-constant-interpreter
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void test(void) {
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char buffer[10];
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__builtin_sprintf(buffer, "%%d%d%d"+0, 1);
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// expected-warning@-1 {{more '%' conversions than data arguments}}
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__builtin_sprintf(buffer, "%%d%d%d"+1, 1);
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// expected-warning@-1 {{more '%' conversions than data arguments}}
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__builtin_sprintf(buffer, "%%d%d%d"+2, 1);
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// expected-warning@-1 {{more '%' conversions than data arguments}}
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__builtin_sprintf(buffer, "%%d%d%d"+3, 1);
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// expected-warning@-1 {{more '%' conversions than data arguments}}
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__builtin_sprintf(buffer, "%%d%d%d"+4, 1);
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__builtin_sprintf(buffer, "%%d%d%d"+5, 1);
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__builtin_sprintf(buffer, "%%d%d%d"+6, 1);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+7, 1);
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// expected-warning@-1 {{format string is empty}}
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__builtin_sprintf(buffer, "%%d%d%d"+8, 1);
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// TODO: we should probably warning about the format string being out of bounds
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__builtin_sprintf(buffer, "%%d%d%d"+0, 1, 2);
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__builtin_sprintf(buffer, "%%d%d%d"+1, 1, 2);
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// expected-warning@-1 {{more '%' conversions than data arguments}}
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__builtin_sprintf(buffer, "%%d%d%d"+2, 1, 2);
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__builtin_sprintf(buffer, "%%d%d%d"+3, 1, 2);
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__builtin_sprintf(buffer, "%%d%d%d"+4, 1, 2);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+5, 1, 2);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+6, 1, 2);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+7, 1, 2);
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// expected-warning@-1 {{format string is empty}}
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__builtin_sprintf(buffer, "%%d%d%d"+8, 1, 2);
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__builtin_sprintf(buffer, "%%d%d%d"+9, 1, 2);
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__builtin_sprintf(buffer, "%%d%d%d"+0, 1, 2, 3);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+1, 1, 2, 3);
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__builtin_sprintf(buffer, "%%d%d%d"+2, 1, 2, 3);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+3, 1, 2, 3);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+4, 1, 2, 3);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+5, 1, 2, 3);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+6, 1, 2, 3);
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// expected-warning@-1 {{data argument not used by format string}}
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__builtin_sprintf(buffer, "%%d%d%d"+7, 1, 2, 3);
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// expected-warning@-1 {{format string is empty}}
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__builtin_sprintf(buffer, "%%d%d%d"+8, 1, 2, 3);
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__builtin_sprintf(buffer, "%%d%d%d"+9, 1, 2, 3);
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static const char format_string[] = {'%', '%', 'd', '%', 'd', '%', 'd'};
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__builtin_sprintf(buffer, format_string+0, 1);
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__builtin_sprintf(buffer, format_string+1, 1);
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__builtin_sprintf(buffer, format_string+2, 1);
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__builtin_sprintf(buffer, format_string+3, 1);
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__builtin_sprintf(buffer, format_string+4, 1);
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__builtin_sprintf(buffer, format_string+5, 1);
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__builtin_sprintf(buffer, format_string+6, 1);
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__builtin_sprintf(buffer, format_string+7, 1);
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#ifdef __cplusplus
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static constexpr char ce_format_string[] = {'%', '%', 'd', '%', 'd', '%', 'd'};
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__builtin_sprintf(buffer, ce_format_string+0, 1);
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__builtin_sprintf(buffer, ce_format_string+1, 1);
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__builtin_sprintf(buffer, ce_format_string+2, 1);
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__builtin_sprintf(buffer, ce_format_string+3, 1);
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__builtin_sprintf(buffer, ce_format_string+4, 1);
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__builtin_sprintf(buffer, ce_format_string+5, 1);
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__builtin_sprintf(buffer, ce_format_string+6, 1);
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__builtin_sprintf(buffer, ce_format_string+7, 1);
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#endif
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}
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#ifdef __cplusplus
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template <class FormatStringSource> bool test_template() {
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char buffer[10];
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__builtin_sprintf(buffer, FormatStringSource::format(0), 1); // #template_test1
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__builtin_sprintf(buffer, FormatStringSource::format(1), 1); // #template_test2
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__builtin_sprintf(buffer, FormatStringSource::format(2), 1); // #template_test3
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__builtin_sprintf(buffer, FormatStringSource::format(3), 1); // #template_test4
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__builtin_sprintf(buffer, FormatStringSource::format(4), 1); // #template_test5
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__builtin_sprintf(buffer, FormatStringSource::format(5), 1); // #template_test6
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__builtin_sprintf(buffer, FormatStringSource::format(6), 1); // #template_test7
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__builtin_sprintf(buffer, FormatStringSource::format(7), 1); // #template_test8
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__builtin_sprintf(buffer, FormatStringSource::format(8), 1); // #template_test9
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return true;
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}
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struct LiteralFormatStr {
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static consteval const char *format(int N) {
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return "%%d%d%d" + N; // #LiteralFormatStrLiteral
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}
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};
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struct ConstLiteralFormatStr {
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static constexpr const char *formatStr = "%%d%d%d"; // #ConstLiteralFormatStrLiteral
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static consteval const char *format(int N) {
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return formatStr + N;
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}
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};
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struct NullTerminatedArrayFormatStr {
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static constexpr char formatStr[] = {'%', '%', 'd', '%', 'd', '%', 'd', 0};
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static consteval const char *format(int N) {
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return formatStr + N;
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}
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};
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struct NoNullTerminatedArrayFormatStr {
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static constexpr char formatStr[] = {'%', '%', 'd', '%', 'd', '%', 'd'};
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static consteval const char *format(int N) {
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return formatStr + N; // #NoNullTerminatedArrayFormatStr_format
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}
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};
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void test_templates() {
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test_template<LiteralFormatStr>();
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// expected-note@-1 {{in instantiation of function template specialization 'test_template<LiteralFormatStr>' requested here}}
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// expected-warning@#template_test1 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test2 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test3 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test4 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test5 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test6 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test7 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test8 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test9 {{more '%' conversions than data arguments}}
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// expected-note@#LiteralFormatStrLiteral 9 {{format string is defined here}}
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test_template<ConstLiteralFormatStr>();
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// expected-note@-1 {{in instantiation of function template specialization 'test_template<ConstLiteralFormatStr>' requested here}}
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// expected-warning@#template_test1 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test2 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test3 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test4 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test5 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test6 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test7 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test8 {{more '%' conversions than data arguments}}
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// expected-warning@#template_test9 {{more '%' conversions than data arguments}}
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// expected-note@#ConstLiteralFormatStrLiteral 9 {{format string is defined here}}
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test_template<NullTerminatedArrayFormatStr>();
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test_template<NoNullTerminatedArrayFormatStr>();
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// expected-note@-1 {{in instantiation of function template specialization 'test_template<NoNullTerminatedArrayFormatStr>' requested here}}
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// expected-note@#NoNullTerminatedArrayFormatStr_format {{cannot refer to element 8 of array of 7 elements in a constant expression}}
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// expected-error@#template_test9 {{call to consteval function 'NoNullTerminatedArrayFormatStr::format' is not a constant expression}}
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// expected-note@#template_test9 {{in call to 'format(8)'}}
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}
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#endif
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