Viewing file:  pr103892.c (1.18 KB) -rw-r--r--
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/* { dg-additional-options "-O2" } */
extern void free (void *__ptr) __attribute__ ((__nothrow__ , __leaf__));
enum pipecmd_tag
{
PIPECMD_PROCESS,
PIPECMD_SEQUENCE
};
struct pipecmd {
enum pipecmd_tag tag;
union {
struct pipecmd_process {
int argc;
int argv_max;
char **argv;
} process;
struct pipecmd_sequence {
int ncommands;
int commands_max;
struct pipecmd **commands;
} sequence;
} u;
};
static char *argstr_get_word (const char **argstr)
{
while (**argstr) {
switch (**argstr) {
case ' ':
case '\t':
return (void *) 0;
}
}
return (void *) 0;
}
struct pipecmd *pipecmd_new_argstr (const char *argstr)
{
argstr_get_word (&argstr);
return (void *) 0;
}
void pipecmd_free (struct pipecmd *cmd)
{
int i;
if (!cmd)
return;
switch (cmd->tag) {
case PIPECMD_PROCESS: {
struct pipecmd_process *cmdp = &cmd->u.process;
for (i = 0; i < cmdp->argc; ++i)
free (cmdp->argv[i]);
free (cmdp->argv);
break;
}
case PIPECMD_SEQUENCE: {
struct pipecmd_sequence *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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