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msg_341.c revision 1.3.2.1 
      1 /*	$NetBSD: msg_341.c,v 1.3.2.1 2025/08/02 05:58:18 perseant Exp $	*/
      2 # 3 "msg_341.c"
      3 
      4 // Test for message: argument to '%s' must be 'unsigned char' or EOF, not '%s' [341]
      5 
      6 /*
      7  * Ensure that the functions from <ctype.h> are called with the correct
      8  * argument.
      9  */
     10 
     11 /* lint1-extra-flags: -X 351 */
     12 
     13 /* NetBSD 9.99.81, <ctype.h> */
     14 extern const unsigned short *_ctype_tab_;
     15 extern const short *_tolower_tab_;
     16 extern const short *_toupper_tab_;
     17 int isspace(int);
     18 
     19 void sink(int);
     20 
     21 void
     22 function_call_char(char c)
     23 {
     24 
     25 	/* expect+1: warning: argument to 'isspace' must be 'unsigned char' or EOF, not 'char' [341] */
     26 	(isspace)(c);
     27 
     28 	/* This is the only allowed form. */
     29 	isspace((unsigned char)c);
     30 
     31 	/* The cast to 'int' is redundant, it doesn't hurt though. */
     32 	isspace((int)(unsigned char)c);
     33 
     34 	/* expect+1: warning: argument to 'isspace' must be cast to 'unsigned char', not to 'int' [342] */
     35 	isspace((int)c);
     36 
     37 	/* expect+1: warning: argument to 'isspace' must be cast to 'unsigned char', not to 'unsigned int' [342] */
     38 	isspace((unsigned int)c);
     39 }
     40 
     41 /*
     42  * If the expression starts with type 'unsigned char', it can be cast to any
     43  * other type.  Chances are low enough that the cast is to 'char', which would
     44  * be the only bad type.
     45  */
     46 void
     47 function_call_unsigned_char(unsigned char c)
     48 {
     49 
     50 	(isspace)(c);
     51 	isspace((unsigned char)c);
     52 	isspace((int)c);
     53 	isspace((unsigned int)c);
     54 }
     55 
     56 /* When used in a loop of fgetc, the type is already 'int'.  That's fine. */
     57 void
     58 function_call_int(int c)
     59 {
     60 
     61 	isspace(c);
     62 }
     63 
     64 void
     65 macro_invocation_NetBSD(char c, signed char sc)
     66 {
     67 
     68 	/* expect+1: warning: argument to 'function from <ctype.h>' must be 'unsigned char' or EOF, not 'char' [341] */
     69 	sink(((int)((_ctype_tab_ + 1)[(c)] & 0x0040)));
     70 
     71 	/* This is the only allowed form. */
     72 	sink(((int)((_ctype_tab_ + 1)[((unsigned char)c)] & 0x0040)));
     73 
     74 	/* expect+1: warning: argument to 'function from <ctype.h>' must be cast to 'unsigned char', not to 'int' [342] */
     75 	sink(((int)((_ctype_tab_ + 1)[((int)c)] & 0x0040)));
     76 
     77 	/* expect+1: warning: argument to 'function from <ctype.h>' must be cast to 'unsigned char', not to 'unsigned int' [342] */
     78 	sink(((int)((_ctype_tab_ + 1)[((unsigned int)c)] & 0x0040)));
     79 
     80 	// See platform_ilp32_int.c.
     81 	// See platform_ilp32_long.c.
     82 	// See platform_lp64.c.
     83 
     84 	/* expect+1: warning: argument to 'function from <ctype.h>' must be 'unsigned char' or EOF, not 'signed char' [341] */
     85 	sink(((int)((_ctype_tab_ + 1)[sc])));
     86 }
     87