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它崩潰與調試錯誤,並說棧周圍的變量「代碼」已損壞。這是我正在做的漢明碼實驗的代碼。輸入文件在同一行上只是一堆1和0。它爲什麼會崩潰?堆棧周圍變量損壞
void processFile(FILE* read, char* InMessage) {
int i = 0, count = 0;
for (i = 0; !feof(read); i++) {
InMessage[i] = fgetc(read);
count++;
}
InMessage[count] = '\0';
}
void hammingCode(char* InMessage) {
int len = strlen(InMessage), i = 0, j = 0;
char code[12], temp[1000];
temp[0] = '\0';
for (i = 0, j = 0; i < len; i++, j++) {
code[j] = InMessage[i];
if (j == 10) {
j = 0;
decode(code);
code[11] = '\0';
strcat_s(temp, sizeof(char)*1000, code);
}
}
strcpy_s(InMessage, sizeof(char)*1000, temp);
}
void decode(char* codeWord) {
int i = 0, j = 0, parity[4] = {0}, diffParity[4] = {0}, twoPower = 0, readNSkip = 0, bitSum = 0;
for (i = 0; i < 4; i++) {
twoPower = (int)pow((double)2, i);
for (j = twoPower; j <= 12; j++) {
if (readNSkip <= twoPower) {
if (j != twoPower) {
parity[i] += codeWord[j-2] - 48;
}
readNSkip++;
}
else {
if (readNSkip == twoPower*2)
readNSkip = 0;
readNSkip++;
}
}
if (parity[i] % 2 == 0)
parity[i] = 0;
else
parity[i] = 1;
if ((codeWord[twoPower-1] - 48) != parity[i])
diffParity[i] = 1;
}
for (i = 0; i < 4; i++) {
twoPower = (int)pow((double)2, i);
bitSum += diffParity[i]*twoPower;
}
codeWord[bitSum] = !codeWord[bitSum];
}
在調試器中運行代碼時會發生什麼? –
嘗試gdb ./a.out,然後輸入r並按回車,看看它爲什麼崩潰..並修復它! – lithiumhead