I have a function which sometime takes more than 24 hours to run. So I want a code which will check the time and exit the function if the function executin is not successful and return to main function.
View 9 RepliesBasically, I'm moving a VC project from my Windows 7 build machine to a new build machine that's running Windows 8.1. One of the pre-build steps (for a particular project) runs a script which needs to call the M4 macro processor (which is installed on my C: drive). I've been pretty careful to set everything up the same on both machines (including my PATH) but when I try to build the project on my Windows 8 box, MSVC's IDE shows me this error output when running the script:-
m4 failed with exit code 255
I'm not sure what I'm missing. It is supposed to input and display player's name and score, calculate the average score, and display the players who scored below average.
It simply doesn't work. All I get is a black screen. Debug spits out an exit code of 1073741510 (0xc000013a).
Code:
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
const int arSize = 100;
int inputPlayerData (string playerName [], int playerScore [], int &numPlayers);
[Code] ....
I am looking for a function or any example that shows elapsed time in seconds and minutes. I didn't find any solution for both OS Win and Linux. I am looking for example that works for both - win and linux.
View 14 Replies View RelatedI am working on a project with rf2500 radio sensors and a state machine handles the whole fucntion of the sensor.. I have this while statement
Code:
while(state!=STATE_STATENINETYFIVE){
__bis_SR_register(LPM3_bits + GIE);
__no_operation();
}
which stop the sleep mode of the CPU every time the STATE_STATENINETYFIVE comes up. I want to make it like this
Code:
while((state!=STATE_ABRRECEIVE)||(state!=STATE_STATENINETYFIVE)){
__bis_SR_register(LPM3_bits + GIE);
__no_operation();
}
So if STATE_ABRRECEIVE or STATE_STATENINETYFIVE comes up exit the while too.
I read some previous post about and I thought to change the logical OR || with AND && but din't work for me... state is type of u_int8_t. Is it a logical error???
Say I have a dll that performs some mathematical parsing and calculations. The calling function is only a single C -linkage wrapper function in the dll. I can anticipate likely errors and program the dll methods to do several things when an anticipated error is encountered. (For now, let's not worry about unanticipated errors).
1 - send an error message to the user application using WM_COPYDATA
2 - throw an exception (assuming the calling app has used the try catch scenario)
3 - try to gracefully recover from the error within the dll and keep on going (jump to some safe place - but how ??)
4 - don't throw an exception from within the dll but halt the program (not very nice - the user won't know what happened)
Previous discussions on the matter have predominantly expressed the opinion that it is bad to throw exceptions from within a dll.
Long ago there was in use setjmp.h and something like
Code: if(setjmp(e_buf)) return -1;
But I believe this was only for old C applications - I'm not really sure. But at least someone back then recognized the need for getting back to a safe place in a process.
I am reading up on the clock() function: URL....It states: "On a 32bit system where CLOCKS_PER_SEC equals 1000000 this function will return the same value approximately every 72 minutes."
How could this return the same value, if clock is the number of clock ticks elapsed since program execution. Wouldn't the number of clock ticks continue to grow, and as such, when we divide by 1000000, the return value should continue to grow. So how does this function return same value every 72 minutes?
I am currently working on a lab for my intro to programming class and the lab is asking for a long distance call calculator. Based on the times that you start your rate will change. If the call starts from 00:00 to 07:59, Rate = $0.07. If the call starts from 08:00 to 18.59, Rate = $0.12. Lastly if the call starts from 19:00 to 23:59, your rate is $0.28.
Then on the output you must show the start time, end time, rate, and total cost of the call.
My confusion is on the end part of the code (the output).
I know you have to use the % operator to convert minutes to hours, but I don't completely understand it which is why I am here. How does the modulus do that? And how will it go over to the next hour if the call starts at 1:35 and ends after 30 minutes (2:05)?
Here is what I have so far.
#include <iostream>
#include <string>
using namespace std;
int main() {
float callStart, minutes;
double cost;
char choice('Y');
string rate;
[Code] ....
Understanding Fork() calls. I have to write a C program in UNIX machine, and make two Fork Calls Inside it and have these two instances run every five minutes all round the clock. How to achieve this.
View 1 Replies View RelatedI want to add a count down timer to my testing software 1hr and 30min
Its a 32bit console application, I want the countdown timer outputted above each question on the right side, timer only needs to output the time left at the top of each question so a live outputted timer is not important.
Questions are not random generated.
Also how to output "out of time" if the timer reaches 0 and for the test to end, I think branching is involved not too sure.
I already have, std::srand( std::time(0) ) ; at the start of the test to randomly generate the answer order.
I have to write a program for class in which users will be inputting:
start time = startTime
number of minutes = callDuration
so first off, teacher wants us to input time as a floating point number such as 09.00
How do I validate the time so that users cant input i.e. 09.61 for every hour? In other words, so the user cant input minutes 60-99 for every hour.
then, when calculating:
endTime = startTime + callDuration
how would I make endTime display a correct time in such a situation: endTime = 09.45 + 00.30
so that it displays 10.15 not 09.75
Design, implement, and test a class that represents an amount of time in minutes and seconds. The class should provide a constructor that sets the time to a specified number of minutes and seconds. The default constructor should create an object for a time of zero minutes and zero seconds. The class should provide observers that return the minutes and the seconds separately, and an observer that returns the total time in seconds (minutes x 60 + seconds). Boolean comparison observers should be provided that test whether two times are equal, one time is greater than the other, or one time is less than the other. (You may use RelationType and function ComparedTo if you choose). A function should be provided that adds one time to another, and another function that subtracts one time from another. The class should not allow negative times (subtraction of more time than is currently stored should result in a time of 0:00). This class should be immutable.
this is one of my main errors: Error1error C2653: 'Time' : is not a class or namespace namec:userskdesktop
oane statecisp 1610visual studioschapter 12 assignmentchapter 12 assignmentchapter 12 assignment.cpp131Chapter 12 Assignment
//The implementation file ImplFileTimeClassAsgnt.cpp:
#include "Time.h"
#include <iostream>
using namespace std;
Time::Time() {
mins = 0;
secs = 0;
[Code] ....
The problem is that I need to figure out the user's birthday in months, days, hours, and minutes from today's date.
Here's what I have so far.
#include<iostream>
#include<cmath>
#include<ctime>
using namespace std;
int main() {
int todayDay, todayMonth, todayYear;
int birthDay, birthMonth, birthYear;
[Code] ....
I haven't initialized all the variables, yet. And it's very unfinished. I need to figure out how to convert years from the age into months only. And I need to figure out how to calculate the hours, seconds, and minutes.
this is my code i want to put the part where i have it do multiplication and addition into functions. and then call them so that it can run the addition and multiplication. Heres my code
# include <iostream>
using namespace std;
int main(){
[Code].....
I have a function that needs to return a "uint8_t" value. However before doing the processing I need to perform a test on the argument to check if it's between expected boundaries. Although this function works it gives (a logical) warning that not always a value is returned although expected. What is the normal way for functions like these where I normally should return e.g. -1 in case the test doesn't succeed and otherwise the uint8_t (t) value?
Code:
uint8_t myFunc(int a) {
if (a >= 0 && a <= 100) {
// Perform actions
uint8_t = ...
return t;
}
}
Not sure what am doing wrong on this program, trying to use atoi to hit 'Z' to exit from the console:
<
#include "stdafx.h"
#include <iostream>
using namespace std;
#include <cstring>
#include <cstdlib>
int _tmain(int argc, _TCHAR* argv[])//main program begins here.
[Code] .....
I start working on CodeBlocks and stuck in a situation. The situation is that I want to clear my output screen every time the main function calls some other functions. To do that I use clrscr() function but its not working. After spending some times on web, I found that its a non-standard function so this extension is not used by the new compiler's. Another thing I find to use < cstdlib > library. But unfortunately it do works only for C. It works for C++.
View 2 Replies View RelatedI'm unable to use the function random(num); in Code::Blocks. It shows the error : error: 'random' was not declared in this scope while the same code works fine in Borland's Turbo C++. How do I rectify this?
View 6 Replies View RelatedI've been reading my code for the past 3 days and I cannot get 0 to exit the program.
#include <iostream>
#include <cctype>
#include <cstring>
#include <cstdlib>
#include <fstream>
using namespace std;
size_t dub_count = 0;
size_t op_count = 0;
[Code] .....
I want to implement some "debugger like" tool (very limited one, just identify at running time the current stack trace, and print messages from the user) on some code that the user wrote. what I get from the user is a function name (in the beginning of it's declaration), and when the user want to print some message he uses some print macro I should implement.
My target is printing the stack call, and all the messages that the user wrote, in the right place on the running place.
By what c++ feature can know on running time that a specific function code has ended??
Its easy to push a function to some vector when it called (since I get its name from the user), but when it ends and return to the function called it...
I am currently working on a c++ project that will input students and process their grades. I encountered a problem and my code stops executing after the getScores function. Im not sure what the problem is, but im guessing its something within the function and the loops.
//Name: getScores
//Description: Will get scores for student
//Parameters: None
//Return: testScore
double getScores()
[code]....
This: "The compiler may not always be able to insert the code for a function inline (such as with recursive functions or functions for which you have obtained an address), but generally, it will work."
For a function inline why wont it work for a recursive function or a function for which you have obtained an address?
Why cant the compiler still insert the inline?
for starters i hope this question wasn't posted yet.i want to write a small program that askes the user what he wants to do , and then executes the comand in system . But for some reason it doesn't quit on the key word this is the code:
Code:
#include <stdio.h>
/*a simple interaction programme that schow the system options*/
#define systemt "x1b[32m" /*changes the color to green for system output*/
#define user "x1b[0m" /*changes the color to white for user input*/
int main() {
[Code]...
Is there something wrong white the code or does the system bock me from reusing the choise string. i'll inculde the original c file as well
Code:
#include <iostream>
#include <windows.h>
#include <iomanip>
using namespace std;
[Code] .....
I'm trying to implement Morse code program. However, I cannot find any codes which make a time gap between the letters. How the time gap code?
I'm trying to make a very simple reaction game where a random number flickers on the screen for a fraction of a second and the user has to then enter the number before another comes on the screen after a random amount of time. However I dont know how i would make it so that the user cannot enter anything after a certain amount of time has passed, below is my code?
Also FYI, clock_start is at 5100 because by the time the program actually gets to scanning in the first number the time is at an absolute minimum of 5050 milliseconds however obviously this is an impossible number to reach due to processing, my machine clocks in at 5080.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <windows.h>
int main(void){
[Code]...
I was writing a program and it started crashing on exit (segment fault), after the 'return 0' in main(). I figure it's an std destructor.
I started with the program I was writing and just stripped out as much as I could, while making sure the crash persisted. If I remove any of the remaining code the crash disappears, even the seemly unrelated or scoped code.
#include <iostream>
#include <fstream>
#include <condition_variable>
#include <mutex>
#include <thread>
/* Call stack results:
[Code] ....