c++ “Run-Time Check Failure #2 - Stack around the variable was corrupted” error while reading values from...
1
I am trying to read values from a ppm image file and i get "Run-Time Check Failure #2 - Stack around the variable 'numbers' was corrupted" error. I am new to c++ and programming in general and i dont understand what is the problem, can someone help?
I dont know if it is important, but the code i have written in main i will later transfer in a method that will perform this task( i will do all the necessery adjustments), is a similar error going to occur inside the method?
(the code is written in visual studio in debug mode)
int main(int argc, char *argv) {
ifstream imagefile(argv[1], ios::binary);
if (!imagefile.is_open()) {
printf("error opening");
return 0;
}
string values[4];
int x;
for (int i = 0; i < 4; i++) {
string str;
char c = imagefile.get();
while (!isspace(static_cast<unsigned char>(c))) {
str = str + c;
c = imagefile.get();
if (str.size() > 10000) {
cout << "wrong" << endl; //for testing
goto stop;
}
}
x=i;
cout << x << endl; //for testing
values[i] = str;
cout << str << endl; //for testing
}
stop:
if (!values[0].compare("P6") == 0 || x!=3) {
cout << "wrong format" << endl;
system("pause");
return 0;
}
int numbers[3];
for (int i= 1; i <4; i++) {
stringstream str; //to convert string to integer
str << values[i];
int number;
str >> number;
numbers[i] = number;
cout << numbers[i] +1<< endl; //for testing
}
int start = imagefile.tellg();
imagefile.seekg(0, ios::end);
int end = imagefile.tellg();
int size = end - start;
imagefile.seekg(start, ios::beg);
float *pixels = new float[size];
for (int i = 0; i < size; i++) {
int c = imagefile.get();
float f = c / 255.0;
pixels[i] = f;
}
system("pause");
return 0;
}
c++ binary istream ppm
asked Nov 20 '18 at 15:16
JDoeJDoe
74
|
show 1 more comment
1
I am trying to read values from a ppm image file and i get "Run-Time Check Failure #2 - Stack around the variable 'numbers' was corrupted" error. I am new to c++ and programming in general and i dont understand what is the problem, can someone help?
I dont know if it is important, but the code i have written in main i will later transfer in a method that will perform this task( i will do all the necessery adjustments), is a similar error going to occur inside the method?
(the code is written in visual studio in debug mode)
int main(int argc, char *argv) {
ifstream imagefile(argv[1], ios::binary);
if (!imagefile.is_open()) {
printf("error opening");
return 0;
}
string values[4];
int x;
for (int i = 0; i < 4; i++) {
string str;
char c = imagefile.get();
while (!isspace(static_cast<unsigned char>(c))) {
str = str + c;
c = imagefile.get();
if (str.size() > 10000) {
cout << "wrong" << endl; //for testing
goto stop;
}
}
x=i;
cout << x << endl; //for testing
values[i] = str;
cout << str << endl; //for testing
}
stop:
if (!values[0].compare("P6") == 0 || x!=3) {
cout << "wrong format" << endl;
system("pause");
return 0;
}
int numbers[3];
for (int i= 1; i <4; i++) {
stringstream str; //to convert string to integer
str << values[i];
int number;
str >> number;
numbers[i] = number;
cout << numbers[i] +1<< endl; //for testing
}
int start = imagefile.tellg();
imagefile.seekg(0, ios::end);
int end = imagefile.tellg();
int size = end - start;
imagefile.seekg(start, ios::beg);
float *pixels = new float[size];
for (int i = 0; i < size; i++) {
int c = imagefile.get();
float f = c / 255.0;
pixels[i] = f;
}
system("pause");
return 0;
}
c++ binary istream ppm
asked Nov 20 '18 at 15:16
JDoeJDoe
74
int numbers[3];thenfor (int i= 1; i <4; i++) { }is a bug. since you access numbers[3]. Note that the valid array indices are 0 to 2 not 1 to 3.
– drescherjm
Nov 20 '18 at 15:17
Thankfully your run time tells you exactly where to look.
– drescherjm
Nov 20 '18 at 15:20
@drescherjm don't you mean "array indices are from 0 to 2 not from 1 to 3"?
– Yastanub
Nov 20 '18 at 15:21
Yes sorry fixed.
– drescherjm
Nov 20 '18 at 15:21
thank you very much! i found the way to fix it
– JDoe
Nov 20 '18 at 15:26
|
show 1 more comment
1
1
1
I am trying to read values from a ppm image file and i get "Run-Time Check Failure #2 - Stack around the variable 'numbers' was corrupted" error. I am new to c++ and programming in general and i dont understand what is the problem, can someone help?
I dont know if it is important, but the code i have written in main i will later transfer in a method that will perform this task( i will do all the necessery adjustments), is a similar error going to occur inside the method?
(the code is written in visual studio in debug mode)
int main(int argc, char *argv) {
ifstream imagefile(argv[1], ios::binary);
if (!imagefile.is_open()) {
printf("error opening");
return 0;
}
string values[4];
int x;
for (int i = 0; i < 4; i++) {
string str;
char c = imagefile.get();
while (!isspace(static_cast<unsigned char>(c))) {
str = str + c;
c = imagefile.get();
if (str.size() > 10000) {
cout << "wrong" << endl; //for testing
goto stop;
}
}
x=i;
cout << x << endl; //for testing
values[i] = str;
cout << str << endl; //for testing
}
stop:
if (!values[0].compare("P6") == 0 || x!=3) {
cout << "wrong format" << endl;
system("pause");
return 0;
}
int numbers[3];
for (int i= 1; i <4; i++) {
stringstream str; //to convert string to integer
str << values[i];
int number;
str >> number;
numbers[i] = number;
cout << numbers[i] +1<< endl; //for testing
}
int start = imagefile.tellg();
imagefile.seekg(0, ios::end);
int end = imagefile.tellg();
int size = end - start;
imagefile.seekg(start, ios::beg);
float *pixels = new float[size];
for (int i = 0; i < size; i++) {
int c = imagefile.get();
float f = c / 255.0;
pixels[i] = f;
}
system("pause");
return 0;
}
c++ binary istream ppm
asked Nov 20 '18 at 15:16
JDoeJDoe
74
I am trying to read values from a ppm image file and i get "Run-Time Check Failure #2 - Stack around the variable 'numbers' was corrupted" error. I am new to c++ and programming in general and i dont understand what is the problem, can someone help?
I dont know if it is important, but the code i have written in main i will later transfer in a method that will perform this task( i will do all the necessery adjustments), is a similar error going to occur inside the method?
(the code is written in visual studio in debug mode)
int main(int argc, char *argv) {
ifstream imagefile(argv[1], ios::binary);
if (!imagefile.is_open()) {
printf("error opening");
return 0;
}
string values[4];
int x;
for (int i = 0; i < 4; i++) {
string str;
char c = imagefile.get();
while (!isspace(static_cast<unsigned char>(c))) {
str = str + c;
c = imagefile.get();
if (str.size() > 10000) {
cout << "wrong" << endl; //for testing
goto stop;
}
}
x=i;
cout << x << endl; //for testing
values[i] = str;
cout << str << endl; //for testing
}
stop:
if (!values[0].compare("P6") == 0 || x!=3) {
cout << "wrong format" << endl;
system("pause");
return 0;
}
int numbers[3];
for (int i= 1; i <4; i++) {
stringstream str; //to convert string to integer
str << values[i];
int number;
str >> number;
numbers[i] = number;
cout << numbers[i] +1<< endl; //for testing
}
int start = imagefile.tellg();
imagefile.seekg(0, ios::end);
int end = imagefile.tellg();
int size = end - start;
imagefile.seekg(start, ios::beg);
float *pixels = new float[size];
for (int i = 0; i < size; i++) {
int c = imagefile.get();
float f = c / 255.0;
pixels[i] = f;
}
system("pause");
return 0;
}
c++ binary istream ppm
c++ binary istream ppm
asked Nov 20 '18 at 15:16
JDoeJDoe
74
asked Nov 20 '18 at 15:16
JDoeJDoe
74
asked Nov 20 '18 at 15:16
JDoeJDoe
74
asked Nov 20 '18 at 15:16
JDoeJDoe
74
asked Nov 20 '18 at 15:16
JDoeJDoe
74
74
int numbers[3];thenfor (int i= 1; i <4; i++) { }is a bug. since you access numbers[3]. Note that the valid array indices are 0 to 2 not 1 to 3.
– drescherjm
Nov 20 '18 at 15:17
Thankfully your run time tells you exactly where to look.
– drescherjm
Nov 20 '18 at 15:20
@drescherjm don't you mean "array indices are from 0 to 2 not from 1 to 3"?
– Yastanub
Nov 20 '18 at 15:21
Yes sorry fixed.
– drescherjm
Nov 20 '18 at 15:21
thank you very much! i found the way to fix it
– JDoe
Nov 20 '18 at 15:26
|
show 1 more comment
int numbers[3];thenfor (int i= 1; i <4; i++) { }is a bug. since you access numbers[3]. Note that the valid array indices are 0 to 2 not 1 to 3.
– drescherjm
Nov 20 '18 at 15:17
Thankfully your run time tells you exactly where to look.
– drescherjm
Nov 20 '18 at 15:20
@drescherjm don't you mean "array indices are from 0 to 2 not from 1 to 3"?
– Yastanub
Nov 20 '18 at 15:21
Yes sorry fixed.
– drescherjm
Nov 20 '18 at 15:21
thank you very much! i found the way to fix it
– JDoe
Nov 20 '18 at 15:26
int numbers[3]; then for (int i= 1; i <4; i++) { } is a bug. since you access numbers[3]. Note that the valid array indices are 0 to 2 not 1 to 3.– drescherjm
Nov 20 '18 at 15:17
int numbers[3]; then for (int i= 1; i <4; i++) { } is a bug. since you access numbers[3]. Note that the valid array indices are 0 to 2 not 1 to 3.– drescherjm
Nov 20 '18 at 15:17
Thankfully your run time tells you exactly where to look.
– drescherjm
Nov 20 '18 at 15:20
Thankfully your run time tells you exactly where to look.
– drescherjm
Nov 20 '18 at 15:20
@drescherjm don't you mean "array indices are from 0 to 2 not from 1 to 3"?
– Yastanub
Nov 20 '18 at 15:21
@drescherjm don't you mean "array indices are from 0 to 2 not from 1 to 3"?
– Yastanub
Nov 20 '18 at 15:21
Yes sorry fixed.
– drescherjm
Nov 20 '18 at 15:21
Yes sorry fixed.
– drescherjm
Nov 20 '18 at 15:21
thank you very much! i found the way to fix it
– JDoe
Nov 20 '18 at 15:26
thank you very much! i found the way to fix it
– JDoe
Nov 20 '18 at 15:26
|
show 1 more comment
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int numbers[3];thenfor (int i= 1; i <4; i++) { }is a bug. since you access numbers[3]. Note that the valid array indices are 0 to 2 not 1 to 3.– drescherjm
Nov 20 '18 at 15:17
Thankfully your run time tells you exactly where to look.
– drescherjm
Nov 20 '18 at 15:20
@drescherjm don't you mean "array indices are from 0 to 2 not from 1 to 3"?
– Yastanub
Nov 20 '18 at 15:21
Yes sorry fixed.
– drescherjm
Nov 20 '18 at 15:21
thank you very much! i found the way to fix it
– JDoe
Nov 20 '18 at 15:26