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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [Wconversion-integer.c] - Blame information for rev 327

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Line No. Rev Author Line
1 298 jeremybenn 
/* Test for diagnostics for implicit conversions between integer types
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   These tests come from gcc/testsuite/gcc.dg/overflow-warn-2.c  */
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/* { dg-do compile } */
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/* { dg-options "-std=c99 -fsigned-char -Wconversion" } */
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#include <limits.h>
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void fsc (signed char sc);
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void fuc (unsigned char uc);
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unsigned fui (unsigned int  ui);
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void fsi (signed int ui);
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void h (int x)
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{
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  unsigned int ui = 3;
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  int   si = 3;
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  unsigned char uc = 3;
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  signed char   sc = 3;
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  uc = ui; /* { dg-warning "conversion" } */
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  uc = si; /* { dg-warning "conversion" } */
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  sc = ui; /* { dg-warning "conversion" } */
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  sc = si; /* { dg-warning "conversion" } */
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  fuc (ui); /* { dg-warning "conversion" } */
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  fuc (si); /* { dg-warning "conversion" } */
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  fsc (ui); /* { dg-warning "conversion" } */
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  fsc (si); /* { dg-warning "conversion" } */
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  fsi (si);
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  fui (ui);
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  fsi (uc);
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  si = uc;
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  fui (uc);
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  ui = uc;
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  fui ('A');
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  ui = 'A';
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  fsi ('A');
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  si = 'A';
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  fuc ('A');
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  uc = 'A';
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  uc = x ? 1U : -1; /* { dg-warning "conversion" } */
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  /* { dg-warning "negative integer implicitly converted to unsigned type" "" { target *-*-* } 43 } */
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  uc = x ? SCHAR_MIN : 1U; /* { dg-warning "conversion" } */
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  /* { dg-warning "negative integer implicitly converted to unsigned type" "" { target *-*-* } 45 } */
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  uc = x ? 1 : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  uc = x ? SCHAR_MIN : 1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = x ? 1U : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = x ? INT_MIN : 1U; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = ui ? SCHAR_MIN : 1U; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = 1U * -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = ui + INT_MIN; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = x ? 1 : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = ui ? SCHAR_MIN : 1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  fuc (-1); /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  uc = -1;  /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  fui (-1); /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  fuc ('\xa0'); /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  uc = '\xa0'; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  fui ('\xa0');/* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  ui = '\xa0'; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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  fsi (0x80000000); /* { dg-warning "conversion" } */
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  si = 0x80000000;  /* { dg-warning "conversion" } */
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  fsi (UINT_MAX - 1);  /* { dg-warning "conversion" } */
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  si = UINT_MAX - 1;   /* { dg-warning "conversion" } */
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  fsi (UINT_MAX - 1U); /* { dg-warning "conversion" } */
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  si = UINT_MAX - 1U;  /* { dg-warning "conversion" } */
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  fsi (UINT_MAX/3U);
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  si = UINT_MAX/3U;
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  fsi (UINT_MAX/3);
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  si = UINT_MAX/3;
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  fui (UINT_MAX - 1);
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  ui = UINT_MAX - 1;
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  uc = (unsigned char) -1;
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  ui = -1 * (1 * -1);
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  ui = (unsigned) -1;
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  fsc (uc); /* { dg-warning "conversion" } */
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  sc = uc;  /* { dg-warning "conversion" } */
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  fuc (sc); /* { dg-warning "conversion" } */
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  uc = sc;  /* { dg-warning "conversion" } */
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  fsi (ui); /* { dg-warning "conversion" } */
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  si = ui;  /* { dg-warning "conversion" } */
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  fui (si); /* { dg-warning "conversion" } */
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  ui = si;  /* { dg-warning "conversion" } */
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  fui (sc); /* { dg-warning "conversion" } */
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  ui = sc;  /* { dg-warning "conversion" } */
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}
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unsigned fui (unsigned a) { return a + -1; } /* { dg-warning "negative integer implicitly converted to unsigned type" } */
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