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Simple code snippet, which show how to convert binary number into decimal number very easily in C.
#include <stdio.h>
#include <stdlib.h>
int main(void)
const char binary[] = "11001";
int decimal = strtol(binary, NULL, 2);
printf("binary = \"%s\", decimal = %d = 0x%02X\n",
binary, decimal, decimal);
return 0;
/* my output
binary = "11001", decimal = 25 = 0x19
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