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Use stdint.h for integer types #4

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Use stdint.h for integer types #4

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10 changes: 6 additions & 4 deletions crc16.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,8 @@
extern "C" {
#endif

#include <stdint.h>

#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
Expand All @@ -17,7 +19,7 @@ extern "C" {
#define luaL_Reg luaL_reg
#endif

unsigned int crc_table[256] = {
uint16_t crc_table[256] = {
0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
Expand Down Expand Up @@ -55,15 +57,15 @@ unsigned int crc_table[256] = {

static int compute(lua_State *L)
{
const char *data;
const uint8_t *data;
size_t len = 0;
unsigned short r, crc = 0;
uint16_t r, crc = 0;

data = luaL_checklstring(L, 1, &len);

for ( ; len > 0; len--)
{
r = (unsigned short)(crc >> 8);
r = (uint16_t)(crc >> 8);
crc <<= 8;
crc ^= crc_table[r ^ *data];
data ++;
Expand Down