File reading trouble - c++

Question

#Jason Ball this is the whole function:
std::ifstream InFile(filename);
if (!InFile)
return E_FAIL;
std::vector<Layer>Layers;
std::vector<PatternSet>Patterns;
std::vector<Mood>Moods;
Layer layer;
PatternSet ps;
Mood mood;
Theme theme;
layer.fileInfo.padding = layer.fileInfo.data = nullptr;
layer.fileInfo.len = 0;
std::string cmd;
while (true)
{
InFile >> cmd;
if (!InFile)
break;
if (cmd == "f")
{
InFile >> layer.fileInfo.filename;
}
else if (cmd == "fp")
{
int data, n; InFile >> n;
for (int a = 0; a < n; a++)
{
InFile >> data;
layer.fadePoints.push_back(data);
}
}
else if (cmd == "sp")
{
int data, n; InFile >> n;
for (int a = 0; a < n; a++)
{
InFile >> data;
layer.syncPoints.push_back(data);
}
}
else if (cmd == "v")
{
InFile >> layer.volume;
}
else if (cmd == "#layerend")
{
Layers.push_back(layer);
}
else if (cmd == "#patternset")
{
int Index;
for (int a = 0; a < 5; a++)
{
InFile >> Index;
if (Index != -1)
ps.pattern[a] = std::move(Layers[Index]);
}
Patterns.push_back(ps);
memset(ps.pattern, 0, sizeof(Layer)* 5);
}
else if (cmd == "#mood")
{
InFile >> mood.name;
int Index, n; InFile >> n;
for (int a = 0; a < n; a++)
{
InFile >> Index;
mood.data.push_back(Patterns[Index]);
}
Moods.push_back(mood);
mood.data.clear();
}
else if (cmd == "#theme")
{
InFile >> theme.name;
int Index, n; InFile >> n;
for (int a = 0; a < n; a++)
{
InFile >> Index;
theme.data.push_back(Moods[Index]);
}
m_vTheme.push_back(theme);
theme.data.clear();
}
else
{
}
}
return S_OK;
and here is a file:
#layer
f filename
fp 4 0 1998 1245 1003482
sp 3 500 1200 9500
v 0.95
#layerend
#layer
f filename2
fp 4 0 1998 1245 1003482
sp 3 500 1200 9500
v 0.75
#layerend
#patternset -1 0 -1 -1 -1
#patternset -1 1 -1 -1 -1
#mood name n 0 1
#theme name n 0
#Jason Ball here you have those structures as well:
struct node
{
union{
struct{
std::string filename;
void *padding;
};
struct{
void *data;
unsigned int len;
};
};
};
struct Theme;
struct Mood;
struct PatternSet;
struct Layer
{
node fileInfo;
std::vector<int> fadePoints;
std::vector<int> syncPoints;
float volume;
PatternSet *pUp;
};
struct PatternSet
{
union{
struct{
Layer pattern[5];
};
struct{
Layer start;
Layer main;
Layer end;
Layer rhytmic;
Layer incidental;
};
};
Mood *pUp;
};
struct Mood
{
std::vector<PatternSet> data;
std::string name;
Theme *pUp;
};
struct Theme
{
std::vector<Mood> data;
std::string name;
};
When I set breakpoints everywhere, it shows that after first if block it jumps to return line even when the file contains more than 5 000 lines.
I had the same problem a few months ago, but it somehow got to work. Any ideas what can cause this problem?

Answer 1

try this. Hope it helps.
{
ifstream InFile("text.txt");
if (!InFile) return 0;
string cmd;
while (InFile >> cmd)
{
cout << "\ncmd " << cmd;
if (cmd == "f")
{
string name;
if (InFile >> name) {
layer.fileInfo.filename = name;
cout << "\nfilename: " << layer.fileInfo.filename;
}
}
else if (cmd == "fp")
{
int data, n;
if (InFile >> n) {
for (int a = 0; a < n; a++)
{
if (InFile >> data) {
cout << "\nAdding " << data;
layer.fadePoints.push_back(data);
}
}
}
}
else if (cmd == "sp")
{
int data, n;
if (InFile >> n) {
for (int a = 0; a < n; a++)
{
if (InFile >> data) {
layer.syncPoints.push_back(data);
}
}
}
}
else if (cmd == "v")
{
float vol;
if (InFile >> vol) {
layer.volume = vol;
}
}
else if (cmd == "#layerend")
{
Layers.push_back(layer);
}
else if (cmd == "#patternset")
{
int Index;
for (int a = 0; a < 5; a++)
{
if (InFile >> Index) {
if (Index != -1) {
ps.pattern[a] = std::move(Layers[Index]);
}
}
}
Patterns.push_back(ps);
memset(ps.pattern, 0, sizeof(Layer)* 5);
}
else if (cmd == "#mood")
{
if (InFile >> mood.name) {
cout << "\nmood.name " << mood.name;
int Index, n;
if (InFile >> n) {
for (int a = 0; a < n; a++)
{
if (InFile >> Index) {
cout << "\nmood.data.push_back( " << Index << " )";
mood.data.push_back(Patterns[Index]);
}
}
Moods.push_back(mood);
}
}
}
else if (cmd == "#theme")
{
if (InFile >> theme.name) {
cout << "\ntheme.name " << theme.name;
int Index, n;
if (InFile >> n) {
for (int a = 0; a < n; a++)
{
if (InFile >> Index) {
cout << "\ntheme.data.push_back( " << Index << " )";
theme.data.push_back(Moods[Index]);
}
}
m_vTheme.push_back(theme);
}
}
}
else
{
//
}
}
return 1;
}