# C++ example of converting a hexadecimal string to an int plastic value

• 2020-06-12 10:14:19
• OfStack

Base 106 (hex or subscript 16) is a kind of carry system in mathematics for every hexadecimal 1. 1 is generally represented by the Numbers 0 to 9 and the letters A to F (or a~f), where A~F represents 10 to 15, and these are called base 106 Numbers.

In the development, it is often necessary to convert hexadecimal string into plastic. I have written a code for your reference:

``````
#include <stdio.h>
#include <string.h>
// Character conversion to plastic
int hex2int(char c)
{
if ((c >= 'A') && (c <= 'Z'))
{
return c - 'A' + 10;
}
else if ((c >= 'a') && (c <= 'z'))
{
return c - 'a' + 10;
}
else if ((c >= '0') && (c <= '9'))
{
return c - '0';
}
}
int main()
{
//106 Converts a base string to an int
const char* hexStr = "EFA0";
int data[32] = {0};
int count = 0;
for (int i=0; i<strlen(hexStr); i+=2)
{
int high = hex2int(hexStr[i]);  // high 4 position
int low = hex2int(hexStr[i+1]); // low 4 position
data[count++] = (high<<4) + low;
}
// A printout
for (int i=0; i<strlen(hexStr)/2; i++)
{
printf("%d ", data[i]);
}
return 1;
}``````

conclusion

Related articles: