我使用VS2012,在一个结合了C和C ++代码的项目上。在GCC中运行代码时不会发生此问题。
(见底部的截图)
当调用函数FeedForwardNetwork_new_from_string()
时,下面的C函数在堆栈溢出时失败,立即。在调用该函数之后,调试器会中断,但在执行任何该函数的代码之前。
FeedForwardNetwork *FeedForwardNetwork_new_from_file(const char *filePath) {
char *file_contents;
long input_file_size;
FILE *input_file = fopen(filePath, "rb");
FeedForwardNetwork *ffn;
if (input_file == NULL) {
return NULL;
}
fseek(input_file, 0, SEEK_END);
input_file_size = ftell(input_file);
rewind(input_file);
file_contents = (char*)malloc((input_file_size + 1) * (sizeof(char)));
fread(file_contents, sizeof(char), input_file_size, input_file);
file_contents[input_file_size] = '\0';
fclose(input_file);
ffn = FeedForwardNetwork_new_from_string(file_contents);
free(file_contents);
return ffn;
}
这是从main()
开始的函数流程:
int main(int argc, char **argv) {
VideoAnalyzerUtils::getNeuralNetwork();
return 0;
}
函数getNeuralNetwork()
,它调用有问题的函数:
FeedForwardNetwork *VideoAnalyzerUtils::getNeuralNetwork() {
if (VideoAnalyzerUtils::network_ == NULL) {
VideoAnalyzerUtils::network_ = FeedForwardNetwork_new_from_file("net.txt");
}
return VideoAnalyzerUtils::network_;
}
FeedForwardNetworkSettings_new_from_string()
的实施:
FeedForwardNetworkSettings *FeedForwardNetworkSettings_new_from_string(const char *settingsStr) {
char buffer[NEURON_STR_READ_BUFFER_SIZE];
int withBias;
double trainingRate ;
double outputLayerTrainingRate;
int hiddenLayerType;
int outputLayerType;
FeedForwardNetworkSettings *settings;
_Neuron_getValueFromString(settingsStr, "withBias=", buffer);
if (strcmp(buffer, "") == 0) {
return NULL;
}
withBias = atoi(buffer);
_Neuron_getValueFromString(settingsStr, "trainingRate=", buffer);
if (strcmp(buffer, "") == 0) {
return NULL;
}
trainingRate = atof(buffer);
_Neuron_getValueFromString(settingsStr, "outputLayerTrainingRate=", buffer);
if (strcmp(buffer, "") == 0) {
return NULL;
}
outputLayerTrainingRate = atof(buffer);
_Neuron_getValueFromString(settingsStr, "hiddenLayerType=", buffer);
if (strcmp(buffer, "") == 0) {
return NULL;
}
hiddenLayerType = atoi(buffer);
_Neuron_getValueFromString(settingsStr, "outputLayerType=", buffer);
if (strcmp(buffer, "") == 0) {
return NULL;
}
outputLayerType = atoi(buffer);
settings = (FeedForwardNetworkSettings*)malloc(sizeof(FeedForwardNetworkSettings));
settings->withBias_ = withBias;
settings->trainingRate_ = trainingRate;
settings->outputLayerTrainingRate_ = outputLayerTrainingRate;
settings->hiddenLayerType_ = (NeuronActivationFunction)hiddenLayerType;
settings->outputLayerType_ = (NeuronActivationFunction)outputLayerType;
return settings;
}
你能帮助我理解它为什么会发生以及如何解决它吗?
错误的屏幕截图(请使用浏览器放大以更好地查看):
答案 0 :(得分:1)
您达到了Visual Studio编译器的1 Mb默认堆栈大小。 gcc
具有8 Mb默认堆栈,这就是它与gcc
一起使用的原因。
您可以使用malloc
或calloc
动态分配缓冲区,也可以增加堆栈大小。
Visual Studio接受以下标志来设置堆栈大小:
/STACK:reserve[,commit]
或
/F stack-size-in-bytes