Bernard

how can i insert a single char(could be any symbol) into a string.For example, Variable A stores the value of "D:\program files\common\test". Now, i would like to add a symbol "\" everytime it finds the symbol"\". The output i wanna get is "D:\\program files\\common\\test". Does anyone know how to do it..Thanks for your help..

Best Regards,
Bernard

L7Sqr

A 'string' is simply an array of characters.
Find the length of the string.
Allocate a guestimate of 1.5 times that size for a new array.
Start copying from the beginning of the first into the second, and every time you get to a '\' enter an extra in the second array.
Check before each character that you have not exceeded your 1.5 guestimate size.

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Bernard

Hi L7Sqr,
would you show me some examples for that..thanks for your quick reply

EverLearning

Does it have to be done in C or is it permissible to do in C++?

ps: if you have some code already started, that would help others help you.

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Bernard

i have to program it in C language..Thanks

Bernard

Anyone has a sample code with my case..please

OpenLoop

can you post any code where you defined the "string" so we can help you better.

Bernard

int main(int argc, char *argv[])
{
strcpy(writetofile, argv[3]);
strncpy (DirSpec, argv[1], strlen(argv[1])+1);
strcpy(filename, "\\");
strcat(filename, argv[2]);
strncat (DirSpec, filename, 18);
hFind = FindFirstFile(DirSpec, &FindFileData);
fout = fopen(writetofile, "w");
if (hFind == INVALID_HANDLE_VALUE)
{
printf ("Invalid file handle. Error is %u\n", GetLastError());
return (-1);
}
else
{
printf ("%s\n", &FindFileData.cFileName);
fprintf(fout, "%s \n", &FindFileData.cFileName);
while (FindNextFile(hFind, &FindFileData) != 0)
{
printf ("%s\n", &FindFileData.cFileName);
fprintf(fout, "%s \n", &FindFileData.cFileName);
}

dwError = GetLastError();
FindClose(hFind);
if (dwError != ERROR_NO_MORE_FILES)
{
printf ("Error of finding files. Error is %u\n", dwError);
return (-1);
}
}
fclose(fout);
fout = fopen(writetofile, "r");
while (fgets(record, MAX_REC_SIZE + 1, fout) != NULL)
{
strcpy(fileaddress, argv[1]);
strcat(fileaddress, "\\");
fputs(record, stdout);
printf("record is %s\n", record);
strcat(fileaddress, record);
printf("fileaddress is %s \n", fileaddress);
if (!stat(fileaddress , &buf))
{
strftime(timeStr, 100, "%d-%m-%Y %H:%M:%S", localtime( &buf.st_mtime));
printf("\nLast modified date and time = %s\n", timeStr);
}
else
{
printf("error getting atime or file does not exists.\n");
}
time(&now);
time_now = localtime(&now);
c = asctime(time_now);
set_day(&now);
month_add(&now, -24);
time_new = mktime(time_now);
tm_time_new = localtime(&time_new);
d = asctime(tm_time_new);
puts(d);
timediff = difftime(time_new ,buf.st_mtime);
printf("\nDiff between current and last modified time ( in seconds ) %f\n", timediff );
if (timediff < 0)
{
//remove(filename);
printf("file %s has been removed \n", filename);
}
else
{
printf("file not yet expired \n");
}
//fclose(fout);
}
/*
if (!stat(filename, &buf))
{
strftime(timeStr, 100, "%d-%m-%Y %H:%M:%S", localtime( &buf.st_mtime));
printf("\nLast modified date and time = %s\n", timeStr);
}
else
{
printf("error getting atime or file does not exists.\n");
}
time(&now);
time_now = localtime(&now);
c = asctime(time_now);
set_day(&now);
month_add(&now, -24);
//time_now->tm_mday = 1;
time_new = mktime(time_now);

tm_time_new = localtime(&time_new);
d = asctime(tm_time_new);
puts(d);
timediff = difftime(time_new ,buf.st_mtime);
printf("\nDiff between current and last modified time ( in seconds ) %f\n", timediff );
if (timediff < 0)
{
//remove(filename);
printf("file %s has been removed \n", filename);
}
else
{
printf("file not yet expired \n");
}
*/
fclose(fout);
return 0;
}

Bernard

any idea?

Bernard

this function is still missing something...i've been trying very hard but still couldnt come out with the correct output..please help me with that
my input would be
statement = d:\program files\common\internet
insert char = "\\"
i want my output to be like this d:\\program files\\common\\internet

void addchar(char* statement, char* insertchar)
{
char *temp = statement;
while(*statement !=0)
{
if (*statement == *insertchar)
{
*temp = *statement;
*temp++;
}
*statement++;
}
}
please help