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C++ Reference: strtoul()
strtoul()
Declaration
unsigned long strtoul(const char* kcpString,
char** cppEndPointer,
int iNumberBase);
Description
Converts a string of numerical characters to an unsigned long value. The argument "kcpString" is a pointer to the string, "cppEndPointer" is a pointer to the terminating character, and "iNumberBase" is the number base of the string that is being converted.
Example
#include <iostream>
#include <cstdlib>
int main() {
using namespace std;
// Convert string of binary digits to an unsigned long
const int kiBinary = 2;
char caString[] = "1001";
unsigned long ulNumber = strtoul(caString, NULL, kiBinary);
cout << caString << " converts to " << ulNumber << " in binary." << endl;
return 0;
}
Output:
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