1 /* Test diagnostics for bad implicit type conversions. */ 2 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */ 3 /* { dg-do compile } */ 4 /* { dg-options "-pedantic -ftrack-macro-expansion=0" } */ 5 6 #define TESTARG(ID, TL, TR) void ID##F(TL); void ID##F2(TR x) { ID##F(x); } extern int dummy 7 #define TESTARP(ID, TL, TR) struct { void (*x)(TL); } ID##Fp; void ID##F2(TR x) { ID##Fp.x(x); } extern int dummy 8 #define TESTASS(ID, TL, TR) void ID##F(TR x) { TL y; y = x; } extern int dummy 9 #define TESTINI(ID, TL, TR) void ID##F(TR x) { TL y = x; } extern int dummy 10 #define TESTRET(ID, TL, TR) TR ID##V; TL ID##F(void) { return ID##V; } extern int dummy 11 12 typedef void (*fp)(void); 13 typedef void (*nrfp)(void) __attribute__((noreturn)); 14 15 TESTARG(fqa, nrfp, fp); /* { dg-warning "passing argument 1 of 'fqaF' makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */ 16 TESTARP(fqb, nrfp, fp); /* { dg-warning "passing argument 1 of 'fqbFp.x' makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */ 17 TESTASS(fqc, nrfp, fp); /* { dg-warning "assignment makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */ 18 TESTINI(fqd, nrfp, fp); /* { dg-warning "initialization makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */ 19 TESTRET(fqe, nrfp, fp); /* { dg-warning "return makes '__attribute__..noreturn..' qualified function pointer from unqualified" } */ 20 21 TESTARG(ofqa, fp, nrfp); 22 TESTARP(ofqb, fp, nrfp); 23 TESTASS(ofqc, fp, nrfp); 24 TESTINI(ofqd, fp, nrfp); 25 TESTRET(ofqe, fp, nrfp); 26 27 TESTARG(qa, char *, const char *); /* { dg-warning "passing argument 1 of 'qaF' discards 'const' qualifier from pointer target type" } */ 28 TESTARP(qb, char *, const char *); /* { dg-warning "passing argument 1 of 'qbFp.x' discards 'const' qualifier from pointer target type" } */ 29 TESTASS(qc, char *, const char *); /* { dg-warning "assignment discards 'const' qualifier from pointer target type" } */ 30 TESTINI(qd, char *, const char *); /* { dg-warning "initialization discards 'const' qualifier from pointer target type" } */ 31 TESTRET(qe, char *, const char *); /* { dg-warning "return discards 'const' qualifier from pointer target type" } */ 32 33 TESTARG(oqa, const char *, char *); 34 TESTARP(oqb, const char *, char *); 35 TESTASS(oqc, const char *, char *); 36 TESTINI(oqd, const char *, char *); 37 TESTRET(oqe, const char *, char *); 38 39 TESTARG(fda, fp, void *); /* { dg-warning "ISO C forbids passing argument 1 of 'fdaF' between function pointer and 'void \\*'" } */ 40 TESTARP(fdb, fp, void *); /* { dg-warning "ISO C forbids passing argument 1 of 'fdbFp.x' between function pointer and 'void \\*'" } */ 41 TESTASS(fdc, fp, void *); /* { dg-warning "ISO C forbids assignment between function pointer and 'void \\*'" } */ 42 TESTINI(fdd, fp, void *); /* { dg-warning "ISO C forbids initialization between function pointer and 'void \\*'" } */ 43 TESTRET(fde, fp, void *); /* { dg-warning "ISO C forbids return between function pointer and 'void \\*'" } */ 44 45 TESTARG(dfa, void *, fp); /* { dg-warning "ISO C forbids passing argument 1 of 'dfaF' between function pointer and 'void \\*'" } */ 46 TESTARP(dfb, void *, fp); /* { dg-warning "ISO C forbids passing argument 1 of 'dfbFp.x' between function pointer and 'void \\*'" } */ 47 TESTASS(dfc, void *, fp); /* { dg-warning "ISO C forbids assignment between function pointer and 'void \\*'" } */ 48 TESTINI(dfd, void *, fp); /* { dg-warning "ISO C forbids initialization between function pointer and 'void \\*'" } */ 49 TESTRET(dfe, void *, fp); /* { dg-warning "ISO C forbids return between function pointer and 'void \\*'" } */ 50 51 TESTARG(sua, int *, unsigned int *); /* { dg-warning "pointer targets in passing argument 1 of 'suaF' differ in signedness" } */ 52 TESTARP(sub, int *, unsigned int *); /* { dg-warning "pointer targets in passing argument 1 of 'subFp.x' differ in signedness" } */ 53 TESTASS(suc, int *, unsigned int *); /* { dg-warning "pointer targets in assignment from 'unsigned int \\*' to 'int \\*' differ in signedness" } */ 54 TESTINI(sud, int *, unsigned int *); /* { dg-warning "pointer targets in initialization of 'int \\*' from 'unsigned int \\*' differ in signedness" } */ 55 TESTRET(sue, int *, unsigned int *); /* { dg-warning "pointer targets in returning 'unsigned int \\*' from a function with return type 'int \\*' differ in signedness" } */ 56 57 TESTARG(usa, unsigned int *, int *); /* { dg-warning "pointer targets in passing argument 1 of 'usaF' differ in signedness" } */ 58 TESTARP(usb, unsigned int *, int *); /* { dg-warning "pointer targets in passing argument 1 of 'usbFp.x' differ in signedness" } */ 59 TESTASS(usc, unsigned int *, int *); /* { dg-warning "pointer targets in assignment from 'int \\*' to 'unsigned int \\*' differ in signedness" } */ 60 TESTINI(usd, unsigned int *, int *); /* { dg-warning "pointer targets in initialization of 'unsigned int \\*' from 'int \\*' differ in signedness" } */ 61 TESTRET(use, unsigned int *, int *); /* { dg-warning "pointer targets in returning 'int \\*' from a function with return type 'unsigned int \\*' differ in signedness" } */ 62 63 TESTARG(cua, char *, unsigned char *); /* { dg-warning "pointer targets in passing argument 1 of 'cuaF' differ in signedness" } */ 64 TESTARP(cub, char *, unsigned char *); /* { dg-warning "pointer targets in passing argument 1 of 'cubFp.x' differ in signedness" } */ 65 TESTASS(cuc, char *, unsigned char *); /* { dg-warning "pointer targets in assignment from 'unsigned char \\*' to 'char \\*' differ in signedness" } */ 66 TESTINI(cud, char *, unsigned char *); /* { dg-warning "pointer targets in initialization of 'char \\*' from 'unsigned char \\*' differ in signedness" } */ 67 TESTRET(cue, char *, unsigned char *); /* { dg-warning "pointer targets in returning 'unsigned char \\*' from a function with return type 'char \\*' differ in signedness" } */ 68 69 TESTARG(uca, unsigned char *, char *); /* { dg-warning "pointer targets in passing argument 1 of 'ucaF' differ in signedness" } */ 70 TESTARP(ucb, unsigned char *, char *); /* { dg-warning "pointer targets in passing argument 1 of 'ucbFp.x' differ in signedness" } */ 71 TESTASS(ucc, unsigned char *, char *); /* { dg-warning "pointer targets in assignment from 'char \\*' to 'unsigned char \\*' differ in signedness" } */ 72 TESTINI(ucd, unsigned char *, char *); /* { dg-warning "pointer targets in initialization of 'unsigned char \\*' from 'char \\*' differ in signedness" } */ 73 TESTRET(uce, unsigned char *, char *); /* { dg-warning "pointer targets in returning 'char \\*' from a function with return type 'unsigned char \\*' differ in signedness" } */ 74 75 TESTARG(csa, char *, signed char *); /* { dg-warning "pointer targets in passing argument 1 of 'csaF' differ in signedness" } */ 76 TESTARP(csb, char *, signed char *); /* { dg-warning "pointer targets in passing argument 1 of 'csbFp.x' differ in signedness" } */ 77 TESTASS(csc, char *, signed char *); /* { dg-warning "pointer targets in assignment from 'signed char \\*' to 'char \\*' differ in signedness" } */ 78 TESTINI(csd, char *, signed char *); /* { dg-warning "pointer targets in initialization of 'char \\*' from 'signed char \\*' differ in signedness" } */ 79 TESTRET(cse, char *, signed char *); /* { dg-warning "pointer targets in returning 'signed char \\*' from a function with return type 'char \\*' differ in signedness" } */ 80 81 TESTARG(sca, signed char *, char *); /* { dg-warning "pointer targets in passing argument 1 of 'scaF' differ in signedness" } */ 82 TESTARP(scb, signed char *, char *); /* { dg-warning "pointer targets in passing argument 1 of 'scbFp.x' differ in signedness" } */ 83 TESTASS(scc, signed char *, char *); /* { dg-warning "pointer targets in assignment from 'char \\*' to 'signed char \\*' differ in signedness" } */ 84 TESTINI(scd, signed char *, char *); /* { dg-warning "pointer targets in initialization of 'signed char \\*' from 'char \\*' differ in signedness" } */ 85 TESTRET(sce, signed char *, char *); /* { dg-warning "pointer targets in returning 'char \\*' from a function with return type 'signed char \\*' differ in signedness" } */ 86 87 TESTARG(cia, char *, int *); /* { dg-warning "passing argument 1 of 'ciaF' from incompatible pointer type" } */ 88 TESTARP(cib, char *, int *); /* { dg-warning "passing argument 1 of 'cibFp.x' from incompatible pointer type" } */ 89 TESTASS(cic, char *, int *); /* { dg-warning "assignment to 'char \\*' from incompatible pointer type 'int \\*'" } */ 90 TESTINI(cid, char *, int *); /* { dg-warning "initialization of 'char \\*' from incompatible pointer type 'int \\*'" } */ 91 TESTRET(cie, char *, int *); /* { dg-warning "returning 'int \\*' from a function with incompatible return type 'char \\*'" } */ 92 93 TESTARG(ica, int *, char *); /* { dg-warning "passing argument 1 of 'icaF' from incompatible pointer type" } */ 94 TESTARP(icb, int *, char *); /* { dg-warning "passing argument 1 of 'icbFp.x' from incompatible pointer type" } */ 95 TESTASS(icc, int *, char *); /* { dg-warning "assignment to 'int \\*' from incompatible pointer type 'char \\*'" } */ 96 TESTINI(icd, int *, char *); /* { dg-warning "initialization of 'int \\*' from incompatible pointer type 'char \\*'" } */ 97 TESTRET(ice, int *, char *); /* { dg-warning "returning 'char \\*' from a function with incompatible return type 'int \\*'" } */ 98 99 TESTARG(ciia, char *, int); /* { dg-warning "passing argument 1 of 'ciiaF' makes pointer from integer without a cast" } */ 100 TESTARP(ciib, char *, int); /* { dg-warning "passing argument 1 of 'ciibFp.x' makes pointer from integer without a cast" } */ 101 TESTASS(ciic, char *, int); /* { dg-warning "assignment to 'char \\*' from 'int' makes pointer from integer without a cast" } */ 102 TESTINI(ciid, char *, int); /* { dg-warning "initialization of 'char \\*' from 'int' makes pointer from integer without a cast" } */ 103 TESTRET(ciie, char *, int); /* { dg-warning "returning 'int' from a function with return type 'char \\*' makes pointer from integer without a cast" } */ 104 105 TESTARG(iica, int, char *); /* { dg-warning "passing argument 1 of 'iicaF' makes integer from pointer without a cast" } */ 106 TESTARP(iicb, int, char *); /* { dg-warning "passing argument 1 of 'iicbFp.x' makes integer from pointer without a cast" } */ 107 TESTASS(iicc, int, char *); /* { dg-warning "assignment to 'int' from 'char \\*' makes integer from pointer without a cast" } */ 108 TESTINI(iicd, int, char *); /* { dg-warning "initialization of 'int' from 'char \\*' makes integer from pointer without a cast" } */ 109 TESTRET(iice, int, char *); /* { dg-warning "returning 'char \\*' from a function with return type 'int' makes integer from pointer without a cast" } */ 110 111 struct s { int a; }; 112 113 TESTARG(stria, struct s, int); /* { dg-error "incompatible type for argument 1 of 'striaF'" } */ 114 TESTARP(strib, struct s, int); /* { dg-error "incompatible type for argument 1 of 'stribFp.x'" } */ 115 TESTASS(stric, struct s, int); /* { dg-error "incompatible types when assigning to type 'struct s' from type 'int'" } */ 116 TESTINI(strid, struct s, int); /* { dg-error "invalid initializer" } */ 117 TESTRET(strie, struct s, int); /* { dg-error "incompatible types when returning type 'int' but 'struct s' was expected" } */ 118 119 TESTARG(istra, int, struct s); /* { dg-error "incompatible type for argument 1 of 'istraF'" } */ 120 121 TESTARP(istrb, int, struct s); /* { dg-error "incompatible type for argument 1 of 'istrbFp.x'" } */ 122 123 TESTASS(istrc, int, struct s); /* { dg-error "incompatible types when assigning to type 'int' from type 'struct s'" } */ 124 TESTINI(istrd, int, struct s); /* { dg-error "incompatible types when initializing type 'int' using type 'struct s'" } */ 125 TESTRET(istre, int, struct s); /* { dg-error "incompatible types when returning type 'struct s' but 'int' was expected" } */ 126 127 /* Match all extra informative notes. */ 128 /* { dg-message "note: expected '\[^\n'\]*' but argument is of type '\[^\n'\]*'" "note: expected" { target *-*-* } 0 } */ 129