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111
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1 /* PR c++/34198 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -Wconversion" } */
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4
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5 signed char sc;
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6 unsigned char uc;
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7 short int ss;
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8 unsigned short int us;
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9 int si;
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10 unsigned int ui;
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11
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12 void test1 (void)
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13 {
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14 int a = uc & 0xff;
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15 int b = sc & 0x7f;
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16 int c = 0xff & uc;
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17 int d = 0x7f & sc;
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18 int e = uc & sc;
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19 unsigned char f = (int) uc;
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20 signed char g = (int) sc;
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21 unsigned char h = (unsigned int) (short int) uc;
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22 signed char i = (int) (unsigned short int) sc; /* { dg-warning "conversion from .int. to .signed char. may change value" "" { target { int32plus } } } */
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23 unsigned char j = (unsigned int) (short int) us; /* { dg-warning "may change value" } */
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24 signed char k = (int) (unsigned short int) ss; /* { dg-warning "may change value" } */
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25 }
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26
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27 void test2 (void)
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28 {
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29 signed char a = (unsigned char) sc; /* { dg-warning "may change the sign" } */
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30 unsigned char b = (signed char) uc; /* { dg-warning "may change the sign" } */
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31 signed char c = (int) (unsigned char) sc; /* { dg-warning "may change the sign" } */
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32 unsigned char d = (int) (signed char) uc; /* { dg-warning "may change the sign" } */
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33 int e = (unsigned int) si; /* { dg-warning "may change the sign" } */
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34 unsigned int f = (int) ui; /* { dg-warning "may change the sign" } */
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35 }
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