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/*
C A L L R S S . C
*/
#include "iccomp.h"
void callrss(ESTRUC_ *e, FUNNR_ funnr, ...)
{
register E_TYPE_
type = e_reg | e_int; /* default return type: intreg */
register size_t
args = 1; /* most f()s having 1 argument */
va_list
marker;
va_start(marker, funnr);
gencode (e, op_call_rss, funnr); /* call the function */
switch (funnr)
{
/* 0 args, returning string */
case f_getch:
case f_gets:
args--;
type = e_str | e_reg;
break;
/* 0 args, returning int */
case f_getpid:
args--;
type = e_int | e_reg;
break;
/* 1 arg, returning string */
case f_strupr:
case f_strlwr:
case f_ascii_str:
case f_g_base:
case f_g_ext:
case f_g_path:
type = e_str | e_reg;
break;
case f_getenv: /* 1 arg, returning list */
case f_backtick:
type = e_list | e_reg;
break;
/* 2 arguments, returning int */
case f_strfind:
case f_system:
args++;
break;
/* 2 args, returning string */
case f_chdir:
case f_c_base:
case f_c_ext:
case f_c_path:
case f_str_el:
case f_element:
args++; /* two arguments */
type = e_str | e_reg; /* returning string */
break;
/* 3 args, returning string */
case f_substr:
args = 3; /* three arguments */
type = e_str | e_reg; /* returning string */
break;
/* 2 args, returning list */
case f_stat:
case f_fgets: /* list fgets(string, int) */
case f_fields: /* list fields(string, string) */
case f_makelist: /* list makelist(int, string) */
args++;
type = e_list | e_reg;
break;
/* # args passed as argument */
case f_execute:
case f_exec:
case f_fprintf:
case f_printf:
args = va_arg(marker, size_t);
break;
default:
/*
default is entered in the switch to prevent a long compiler
warning
default: functions having one arg returning an int
case f_ascii_int:
case f_putenv:
case f_arg_head:
case f_arg_tail:
case f_cmd_head:
case f_cmd_tail:
case f_echo:
case f_exists:
case f_sizeoflist:
case f_strlen:
*/
break;
}
if (args)
gencode (e, op_asp, args); /* add stack pointer */
set_type(e, type); /* type of resulting expression */
}
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