36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* PR c++/34198 */
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/* { dg-do compile } */
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/* { dg-options "-O2 -Wconversion" } */
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signed char sc;
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unsigned char uc;
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short int ss;
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unsigned short int us;
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int si;
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unsigned int ui;
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void test1 (void)
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{
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int a = uc & 0xff;
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int b = sc & 0x7f;
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int c = 0xff & uc;
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int d = 0x7f & sc;
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int e = uc & sc;
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unsigned char f = (int) uc;
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signed char g = (int) sc;
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unsigned char h = (unsigned int) (short int) uc;
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signed char i = (int) (unsigned short int) sc; /* { dg-warning "may alter its value" "" { target { int32plus } } } */
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unsigned char j = (unsigned int) (short int) us; /* { dg-warning "may alter its value" } */
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signed char k = (int) (unsigned short int) ss; /* { dg-warning "may alter its value" } */
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}
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void test2 (void)
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{
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signed char a = (unsigned char) sc; /* { dg-warning "may change the sign" } */
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unsigned char b = (signed char) uc; /* { dg-warning "may change the sign" } */
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signed char c = (int) (unsigned char) sc; /* { dg-warning "may change the sign" } */
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unsigned char d = (int) (signed char) uc; /* { dg-warning "may change the sign" } */
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int e = (unsigned int) si; /* { dg-warning "may change the sign" } */
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unsigned int f = (int) ui; /* { dg-warning "may change the sign" } */
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}
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