gcc/testsuite/gcc.dg/assign-warn-2.c

   1 /* Test diagnostics for bad implicit type conversions.
   2    -pedantic-errors test.  */
   3 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
   4 /* { dg-do compile } */
   5 /* { dg-options "-pedantic-errors -ftrack-macro-expansion=0" } */
   6
   7 #define TESTARG(ID, TL, TR) void ID##F(TL); void ID##F2(TR x) { ID##F(x); } extern int dummy
   8 #define TESTARP(ID, TL, TR) struct { void (*x)(TL); } ID##Fp; void ID##F2(TR x) { ID##Fp.x(x); } extern int dummy
   9 #define TESTASS(ID, TL, TR) void ID##F(TR x) { TL y; y = x; } extern int dummy
  10 #define TESTINI(ID, TL, TR) void ID##F(TR x) { TL y = x; } extern int dummy
  11 #define TESTRET(ID, TL, TR) TR ID##V; TL ID##F(void) { return ID##V; } extern int dummy
  12
  13 typedef void (*fp)(void);
  14 typedef void (*nrfp)(void) __attribute__((noreturn));
  15
  16 TESTARG(fqa, nrfp, fp); /* { dg-error "passing argument 1 of 'fqaF' makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */
  17 TESTARP(fqb, nrfp, fp); /* { dg-error "passing argument 1 of 'fqbFp.x' makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */
  18 TESTASS(fqc, nrfp, fp); /* { dg-error "assignment makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */
  19 TESTINI(fqd, nrfp, fp); /* { dg-error "initialization makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */
  20 TESTRET(fqe, nrfp, fp); /* { dg-error "return makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */
  21
  22 TESTARG(ofqa, fp, nrfp);
  23 TESTARP(ofqb, fp, nrfp);
  24 TESTASS(ofqc, fp, nrfp);
  25 TESTINI(ofqd, fp, nrfp);
  26 TESTRET(ofqe, fp, nrfp);
  27
  28 TESTARG(qa, char *, const char *); /* { dg-error "passing argument 1 of 'qaF' discards 'const' qualifier from pointer target type" } */
  29 TESTARP(qb, char *, const char *); /* { dg-error "passing argument 1 of 'qbFp.x' discards 'const' qualifier from pointer target type" } */
  30 TESTASS(qc, char *, const char *); /* { dg-error "assignment discards 'const' qualifier from pointer target type" } */
  31 TESTINI(qd, char *, const char *); /* { dg-error "initialization discards 'const' qualifier from pointer target type" } */
  32 TESTRET(qe, char *, const char *); /* { dg-error "return discards 'const' qualifier from pointer target type" } */
  33
  34 TESTARG(oqa, const char *, char *);
  35 TESTARP(oqb, const char *, char *);
  36 TESTASS(oqc, const char *, char *);
  37 TESTINI(oqd, const char *, char *);
  38 TESTRET(oqe, const char *, char *);
  39
  40 TESTARG(fda, fp, void *); /* { dg-error "ISO C forbids passing argument 1 of 'fdaF' between function pointer and 'void \\*'" } */
  41 TESTARP(fdb, fp, void *); /* { dg-error "ISO C forbids passing argument 1 of 'fdbFp.x' between function pointer and 'void \\*'" } */
  42 TESTASS(fdc, fp, void *); /* { dg-error "ISO C forbids assignment between function pointer and 'void \\*'" } */
  43 TESTINI(fdd, fp, void *); /* { dg-error "ISO C forbids initialization between function pointer and 'void \\*'" } */
  44 TESTRET(fde, fp, void *); /* { dg-error "ISO C forbids return between function pointer and 'void \\*'" } */
  45
  46 TESTARG(dfa, void *, fp); /* { dg-error "ISO C forbids passing argument 1 of 'dfaF' between function pointer and 'void \\*'" } */
  47 TESTARP(dfb, void *, fp); /* { dg-error "ISO C forbids passing argument 1 of 'dfbFp.x' between function pointer and 'void \\*'" } */
  48 TESTASS(dfc, void *, fp); /* { dg-error "ISO C forbids assignment between function pointer and 'void \\*'" } */
  49 TESTINI(dfd, void *, fp); /* { dg-error "ISO C forbids initialization between function pointer and 'void \\*'" } */
  50 TESTRET(dfe, void *, fp); /* { dg-error "ISO C forbids return between function pointer and 'void \\*'" } */
  51
  52 TESTARG(sua, int *, unsigned int *); /* { dg-error "pointer targets in passing argument 1 of 'suaF' differ in signedness" } */
  53 TESTARP(sub, int *, unsigned int *); /* { dg-error "pointer targets in passing argument 1 of 'subFp.x' differ in signedness" } */
  54 TESTASS(suc, int *, unsigned int *); /* { dg-error "pointer targets in assignment differ in signedness" } */
  55 TESTINI(sud, int *, unsigned int *); /* { dg-error "pointer targets in initialization differ in signedness" } */
  56 TESTRET(sue, int *, unsigned int *); /* { dg-error "pointer targets in return differ in signedness" } */
  57
  58 TESTARG(usa, unsigned int *, int *); /* { dg-error "pointer targets in passing argument 1 of 'usaF' differ in signedness" } */
  59 TESTARP(usb, unsigned int *, int *); /* { dg-error "pointer targets in passing argument 1 of 'usbFp.x' differ in signedness" } */
  60 TESTASS(usc, unsigned int *, int *); /* { dg-error "pointer targets in assignment differ in signedness" } */
  61 TESTINI(usd, unsigned int *, int *); /* { dg-error "pointer targets in initialization differ in signedness" } */
  62 TESTRET(use, unsigned int *, int *); /* { dg-error "pointer targets in return differ in signedness" } */
  63
  64 TESTARG(cua, char *, unsigned char *); /* { dg-error "pointer targets in passing argument 1 of 'cuaF' differ in signedness" } */
  65 TESTARP(cub, char *, unsigned char *); /* { dg-error "pointer targets in passing argument 1 of 'cubFp.x' differ in signedness" } */
  66 TESTASS(cuc, char *, unsigned char *); /* { dg-error "pointer targets in assignment differ in signedness" } */
  67 TESTINI(cud, char *, unsigned char *); /* { dg-error "pointer targets in initialization differ in signedness" } */
  68 TESTRET(cue, char *, unsigned char *); /* { dg-error "pointer targets in return differ in signedness" } */
  69
  70 TESTARG(uca, unsigned char *, char *); /* { dg-error "pointer targets in passing argument 1 of 'ucaF' differ in signedness" } */
  71 TESTARP(ucb, unsigned char *, char *); /* { dg-error "pointer targets in passing argument 1 of 'ucbFp.x' differ in signedness" } */
  72 TESTASS(ucc, unsigned char *, char *); /* { dg-error "pointer targets in assignment differ in signedness" } */
  73 TESTINI(ucd, unsigned char *, char *); /* { dg-error "pointer targets in initialization differ in signedness" } */
  74 TESTRET(uce, unsigned char *, char *); /* { dg-error "pointer targets in return differ in signedness" } */
  75
  76 TESTARG(csa, char *, signed char *); /* { dg-error "pointer targets in passing argument 1 of 'csaF' differ in signedness" } */
  77 TESTARP(csb, char *, signed char *); /* { dg-error "pointer targets in passing argument 1 of 'csbFp.x' differ in signedness" } */
  78 TESTASS(csc, char *, signed char *); /* { dg-error "pointer targets in assignment differ in signedness" } */
  79 TESTINI(csd, char *, signed char *); /* { dg-error "pointer targets in initialization differ in signedness" } */
  80 TESTRET(cse, char *, signed char *); /* { dg-error "pointer targets in return differ in signedness" } */
  81
  82 TESTARG(sca, signed char *, char *); /* { dg-error "pointer targets in passing argument 1 of 'scaF' differ in signedness" } */
  83 TESTARP(scb, signed char *, char *); /* { dg-error "pointer targets in passing argument 1 of 'scbFp.x' differ in signedness" } */
  84 TESTASS(scc, signed char *, char *); /* { dg-error "pointer targets in assignment differ in signedness" } */
  85 TESTINI(scd, signed char *, char *); /* { dg-error "pointer targets in initialization differ in signedness" } */
  86 TESTRET(sce, signed char *, char *); /* { dg-error "pointer targets in return differ in signedness" } */
  87
  88 TESTARG(cia, char *, int *); /* { dg-error "passing argument 1 of 'ciaF' from incompatible pointer type" } */
  89 TESTARP(cib, char *, int *); /* { dg-error "passing argument 1 of 'cibFp.x' from incompatible pointer type" } */
  90 TESTASS(cic, char *, int *); /* { dg-error "assignment from incompatible pointer type" } */
  91 TESTINI(cid, char *, int *); /* { dg-error "initialization from incompatible pointer type" } */
  92 TESTRET(cie, char *, int *); /* { dg-error "return from incompatible pointer type" } */
  93
  94 TESTARG(ica, int *, char *); /* { dg-error "passing argument 1 of 'icaF' from incompatible pointer type" } */
  95 TESTARP(icb, int *, char *); /* { dg-error "passing argument 1 of 'icbFp.x' from incompatible pointer type" } */
  96 TESTASS(icc, int *, char *); /* { dg-error "assignment from incompatible pointer type" } */
  97 TESTINI(icd, int *, char *); /* { dg-error "initialization from incompatible pointer type" } */
  98 TESTRET(ice, int *, char *); /* { dg-error "return from incompatible pointer type" } */
  99
 100 TESTARG(ciia, char *, int); /* { dg-error "passing argument 1 of 'ciiaF' makes pointer from integer without a cast" } */
 101 TESTARP(ciib, char *, int); /* { dg-error "passing argument 1 of 'ciibFp.x' makes pointer from integer without a cast" } */
 102 TESTASS(ciic, char *, int); /* { dg-error "assignment makes pointer from integer without a cast" } */
 103 TESTINI(ciid, char *, int); /* { dg-error "initialization makes pointer from integer without a cast" } */
 104 TESTRET(ciie, char *, int); /* { dg-error "return makes pointer from integer without a cast" } */
 105
 106 TESTARG(iica, int, char *); /* { dg-error "passing argument 1 of 'iicaF' makes integer from pointer without a cast" } */
 107 TESTARP(iicb, int, char *); /* { dg-error "passing argument 1 of 'iicbFp.x' makes integer from pointer without a cast" } */
 108 TESTASS(iicc, int, char *); /* { dg-error "assignment makes integer from pointer without a cast" } */
 109 TESTINI(iicd, int, char *); /* { dg-error "initialization makes integer from pointer without a cast" } */
 110 TESTRET(iice, int, char *); /* { dg-error "return makes integer from pointer without a cast" } */
 111
 112 struct s { int a; };
 113
 114 TESTARG(stria, struct s, int); /* { dg-error "incompatible type for argument 1 of 'striaF'" } */
 115 TESTARP(strib, struct s, int); /* { dg-error "incompatible type for argument 1 of 'stribFp.x'" } */
 116 TESTASS(stric, struct s, int); /* { dg-error "incompatible types when assigning to type 'struct s' from type 'int'" } */
 117 TESTINI(strid, struct s, int); /* { dg-error "invalid initializer" } */
 118 TESTRET(strie, struct s, int); /* { dg-error "incompatible types when returning type 'int' but 'struct s' was expected" } */
 119
 120 TESTARG(istra, int, struct s); /* { dg-error "incompatible type for argument 1 of 'istraF'" } */
 121 TESTARP(istrb, int, struct s); /* { dg-error "incompatible type for argument 1 of 'istrbFp.x'" } */
 122 TESTASS(istrc, int, struct s); /* { dg-error "incompatible types when assigning to type 'int' from type 'struct s'" } */
 123 TESTINI(istrd, int, struct s); /* { dg-error "incompatible types when initializing type 'int' using type 'struct s'" } */
 124 TESTRET(istre, int, struct s); /* { dg-error "incompatible types when returning type 'struct s' but 'int' was expected" } */
 125 /* { dg-message "note: expected '\[^'\n\]*' but argument is of type '\[^'\n\]*'" "note: expected" { target *-*-* } 0 } */