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/* { dg-additional-options "-O2 -Wno-analyzer-too-complex -Wno-analyzer-symbol-too-complex" } */
/* C only: C++ FE optimizes argstr_get_word completely away
and therefore the number of SN diminishes compared to C,
making the analysis bails out early. */
extern void free (void *__ptr) __attribute__ ((__nothrow__ , __leaf__));
enum pipecmd_tag
{
PIPECMD_PROCESS,
PIPECMD_SEQUENCE
};
struct pipecmd {
enum pipecmd_tag tag;
union pipecmd_union_t {
struct pipecmd_process {
int argc;
int argv_max;
char **argv;
} process;
struct pipecmd_sequence {
int ncommands;
int commands_max;
struct pipecmd **commands;
} sequence;
} u;
};
#ifdef __cplusplus
typedef pipecmd::pipecmd_union_t::pipecmd_process pipecmd_process_t;
typedef pipecmd::pipecmd_union_t::pipecmd_sequence pipecmd_sequence_t;
#else
typedef struct pipecmd_process pipecmd_process_t;
typedef struct pipecmd_sequence pipecmd_sequence_t;
#endif
static char *argstr_get_word (const char **argstr)
{
while (**argstr) { /* { dg-warning "infinite loop" } */
switch (**argstr) {
case ' ':
case '\t':
return (char *) ((void *) 0);
}
}
return (char *) ((void *) 0);
}
struct pipecmd *pipecmd_new_argstr (const char *argstr)
{
argstr_get_word (&argstr);
return (struct pipecmd *) ((void *) 0);
}
void pipecmd_free (struct pipecmd *cmd)
{
int i;
if (!cmd)
return;
switch (cmd->tag) {
case PIPECMD_PROCESS: {
pipecmd_process_t *cmdp = &cmd->u.process;
for (i = 0; i < cmdp->argc; ++i)
free (cmdp->argv[i]);
free (cmdp->argv);
break;
}
case PIPECMD_SEQUENCE: {
pipecmd_sequence_t *cmds = &cmd->u.sequence;
for (i = 0; i < cmds->ncommands; ++i)
pipecmd_free (cmds->commands[i]);
free (cmds->commands);
break;
}
}
free (cmd);
}
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