Ok ive been at it for a day & im stuck again.
Im trying to take 3 int values convert them to char & then combine the 3 chars into one value.
I would have used string but i don't think you can use it in AVR chips.
int Hours = 1; int Minutes = 2; int Seconds = 3; //now convert 3 int to char //now store in one variable char TotalTime //Stored as 1:2:3
Can anyone supply the code to this?
Thanks
Warren
int Hours = 1; int Minutes = 2; int Seconds = 3; char TotalTime[9]; sprintf(TotalTime, "%d:%d:%d", Hours, Minutes, Seconds);
You might want to get yourself a good book on C to acquaint yourself with the standard C library functions. Saves re- inventing the wheel.
You might want to get yourself a good book on C to acquaint yourself with the standard C library functions. Saves re- inventing the wheel.
haha Yeah i probably should, how much do they help?
int Hours = 1; int Minutes = 2; int Seconds = 3; char TotalTime[9]; sprintf(TotalTime, (browser had a fit), Hours, Minutes, Seconds);
That looks really good but it doesn't save it to a variable for use later.
I have found something that works ok see below
char* TempTime;
void StoreTime (void)
{
//This section gets the current time & converts the int time to string like Hours:Minutes:Seconds
char cHours[3];
itoa(Hours,cHours,10);
char cMinutes[3];
itoa(Minutes,cMinutes,10);
char cSeconds[3];
itoa(Seconds,cSeconds,10);
int i = 0;
int x = 0;
int s = 0;
char Time[sizeof(cHours) + sizeof(cMinutes) + sizeof(cSeconds)];
while(cHours[i])
{
Time[i] = cHours[i];
++i;
}
Time[i] = ':'; //Puts the : time seprator in.
++i;
while(cMinutes[x])
{
Time[i] = cMinutes[x];
++i;
++x;
}
Time[i] = ':';
++i;
while(cSeconds[s])
{
Time[i] = cSeconds[s];
++i;
++s;
}
Time[i] = '\0'; // don't forget the null
TempTime = Time;
}
Quote:
You might want to get yourself a good book on C to acquaint yourself with the standard C library functions. Saves re- inventing the wheel.
haha Yeah i probably should, how much do they help?
The sprintf code stores the result into TotalTime. Your code works but for the grace of God as it returns a pointer to a temp variable that no longer exists when the function exits. Would a good C book help? How do you think most of us learned?
They really do help a lot. At least they help to avoid asking such dumb questions like yours.
lol fantastic.
I never came up with the code i found it on the net because i was beat in trying to work it out.
Ok so whats a friggen good one?
int Hours = 1; int Minutes = 2; int Seconds = 3; char TotalTime[9]; sprintf(TotalTime, (browser had a fit), Hours, Minutes, Seconds);That looks really good but it doesn't save it to a variable for use later.
Rubbish. Of-course it does.
Read the "c in 21 pages" in the imagecraft help file (comes with the eval compiler)
char Time[sizeof(cHours) + sizeof(cMinutes) + sizeof(cSeconds)];
This gives Time the room for the numbers and. the three ':'s that you are also putting into it, but not for the terminating '\0'.
I love you Mbedder
char Time[sizeof(cHours) + sizeof(cMinutes) + sizeof(cSeconds)];This gives Time the room for the numbers and. the three ':'s that you are also putting into it, but not for the terminating '\0'.
