http://www.wincli.com/?p=72
Many people used to classical C have hard time adopting the code to Windows types. The code below illustrates one of the frequent questions: how to use TCHAR arguments with good old code expecting char * in arguments with minimum blood?
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | #include "stdafx.h"
#include "stdio.h"
#include "stdlib.h"
int wstrlen(_TCHAR * wstr)
{
int l_idx = 0;
while (((char*)wstr)[l_idx]!=0) l_idx+=2;
return l_idx;
}
char * wstrdup(_TCHAR * wSrc)
{
int l_idx=0;
int l_len = wstrlen(wSrc);
char * l_nstr = (char*)malloc(l_len);
if (l_nstr) {
do {
l_nstr[l_idx] = (char)wSrc[l_idx];
l_idx++;
} while ((char)wSrc[l_idx]!=0);
}
nstr[l_idx] = 0;
return l_nstr;
}
char ** allocate_argn (int argc, _TCHAR* argv[])
{
char ** l_argn = (char **)malloc(argc * sizeof(char*));
for (int idx=0; idx<argc; idx++) {
l_argn[idx] = wstrdup(argv[idx]);
}
return l_argn;
}
void release_argn(int argc, char ** nargv)
{
for (int idx=0; idx<argc; idx++) {
free(nargv[idx]);
}
free(nargv);
}
int _tmain(int argc, _TCHAR* argv[])
{
char ** argn = allocate_argn(argc, argv);
if (argc>1) {
printf(“Arg 1 = ‘%s’\n”, argn[1]);
}
release_argn(argc, argn);
return 0;
}
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