This is a collection of functions for the manipulation of pointers, bits, and bytes.

Functions

void getBytes(unsigned char dest[], int bytes, void *src, int reverse)
    Copy "bytes" number of bytes from the src address to the unsigned char array dest.
    If reverse is 1, flip the copy order (little endian vs big endian).
    
void getBits(char dest[], int bytes, void *src, int start, int end)
    Retrieve bits in range "start" to "end". Bytes is the total number of bytes in the src.
    Convert the bits to characters and output to char array dest.
    
unsigned long long bits2ull(char *bits)
    Converts binary written in string form to an unsigned long long
    
long long bits2ll(char *bits)
    Converts binary written in string form to a signed long long
    
void spff(char *sign, char *exponent, char *significand, float *src)
    Converts a float into 3 strings; exponent, sign, and significand
    
void dpff(char *sign, char *exponent, char *significand, double *src)
    Converts a double into 3 strings; exponent, sign, and significand

Files

bandb.c
    Contains all the functions in the library.
    
bandb.h
    Contains all the function declarations for the functions in bandb.c
    
test_getbytes.c
    Contains a main function for testing the getbytes function
    
test_getbits.c
    Contains a main function for testing the getbits function
    
test_bits2ull.c
    Contains a main function for testing the bits2ull function
    
test_bits2ll.c
    Contains a main function for testing the bits2ll function
    
test_spff.c
    Contains a main function for testing the spff function
    
test_dpff.c
    Contains a main function for testing the dpff function

Usage (make)

all
    Compiles all the functions for the library and creates test executables
    
bandb.o
    Compliles bandb.c as an object file called bandb.o
    
test_getbytes.o
    Creates object file test_getbytes.o
    
test_getbits.o
    Creates object file test_getbits.o
    
test_bits2ull.o
    Creates object file test_bits2ull.o
    
test_bits2ll.o
    Creates object file test_bits2ll.o
    
test_spff.o
    Creates object file test_spff.o
    
test_dpff.o
    Creates object file test_dpff.o
    
test_getbytes
    Creates executable test_getbytes
    
test_getbits
    Creates executable test_getbits
    
test_bits2ull
    Creates executable test_bits2ull
    
test_bits2ll
    Creates executable test_bits2ll
    
test_spff
    Creates executable test_spff
    
test_dpff
    Creates executable test_dpff
    
clean
    Deletes all compiled executables and object files