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41 lines
685 B
C
41 lines
685 B
C
7 years ago
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/*
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* rpn.c: evalutor of RPN formulas
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*/
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#include <stdint.h>
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#include <syslog.h>
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#include <stdlib.h>
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#include "config.h"
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#include "rpn.h"
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#include "trie.h"
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// Growing stack implementation
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struct grow {
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struct trie_retval *arr;
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int64_t elems;
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int64_t alloc;
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}
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static struct grow *grow_init(void) {
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struct grow *g = malloc(sizeof(struct grow));
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if (g == NULL) {
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syslog(cfg_log_facility | LOG_ERR, "rpn: Could not initialize growing array: %m");
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return NULL;
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}
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g -> arr = NULL;
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g -> elems = 0;
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g -> alloc = 0;
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return g;
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}
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static bool grow_push (int64_t val, struct grow *stack) {
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if (stack -> alloc <= stack -> elems) {
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stack
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}
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}
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bool rpn_eval (char rpn[]) {
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}
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