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fdc18d307a
* check that _Generic don't match unsigned char * with char * this case is usefull as with -funsigned-char, 'char *' are unsigned * change VT_LONG so it's now a qualifier VT_LONG are never use for code generation, but only durring parsing state, in _Generic we need to be able to make diference between 'long' and 'long long' So VT_LONG is now use as a type qualifier, it's old behaviour is still here, but we can keep trace of what was a long and what wasn't * add TOK_CLONG and TOK_CULONG tcc was directly converting value like '7171L' into TOK_CLLONG or TOK_CINT depending of the machine architecture. because of that, we was unable to make diference between a long and a long long, which doesn't work with _Generic. So now 7171L is a TOK_CLONG, and we can handle _Generic properly * check that _Generic can make diference between long and long long * uncomment "type match twice" as it should now pass tests on any platforms * add inside_generic global the point of this variable is to use VT_LONG in comparaison only when we are evaluating a _Generic. problem is with my lastest patchs tcc can now make the diference between a 'long long' and a 'long', but in 64 bit stddef.h typedef uint64_t as typedef signed long long int int64_t and stdint.h as unsigned long int, so tcc break when stdint.h and stddef.h are include together. Another solution woud be to modifie include/stddef.h so it define uint64_t as unsigned long int when processor is 64 bit, but this could break some legacy code, so for now, VT_LONG are use only inside generc. * check that _Generic parse first argument correctly * check that _Generic evaluate correctly exresion like "f() / 2"
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
#include <stdio.h>
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const int a = 0;
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struct a {
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int a;
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};
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struct b {
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int a;
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};
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int a_f()
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{
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return 20;
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}
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int b_f()
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{
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return 10;
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}
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typedef int int_type1;
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#define gen_sw(a) _Generic(a, const char *: 1, default: 8, int: 123);
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int main()
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{
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int i = 0;
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struct b titi;
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const int * const ptr;
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const char *ti;
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int_type1 i2;
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i = _Generic(a, int: a_f, const int: b_f)();
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printf("%d\n", i);
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i = _Generic(a, int: a_f() / 2, const int: b_f() / 2);
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printf("%d\n", i);
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i = _Generic(ptr, int *:1, int * const:2, default:20);
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printf("%d\n", i);
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i = gen_sw(a);
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printf("%d\n", i);
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i = _Generic(titi, struct a:1, struct b:2, default:20);
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printf("%d\n", i);
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i = _Generic(i2, char: 1, int : 0);
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printf("%d\n", i);
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i = _Generic(a, char:1, int[4]:2, default:5);
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printf("%d\n", i);
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i = _Generic(17, int :1, int **:2);
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printf("%d\n", i);
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i = _Generic(17L, int :1, long :2, long long : 3);
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printf("%d\n", i);
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i = _Generic("17, io", char *: 3, const char *: 1);
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printf("%d\n", i);
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i = _Generic(ti, const unsigned char *:1, const char *:4, char *:3,
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const signed char *:2);
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printf("%d\n", i);
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printf("%s\n", _Generic(i + 2L, long: "long", int: "int",
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long long: "long long"));
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return 0;
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}
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