char *floattobinfloat(long double value, char *buffer) {
/* Convert an float value in an binary string stored in the given pointer;
************************************************************************/
if (buffer == NULL) {
/** Given an NULL pointer as argument **/
buffer=calloc(128,sizeof(char)) ;
}
#ifdef HAVE_MALLOC_USABLE_SIZE
if (malloc_usable_size(buffer) < 128) {
if ( realloc(buffer,128) == NULL) {
errno=EINVAL ;
return NULL ;
}
}
#endif
long double int_part=0.0 ;
long double float_part=0.0 ;
float_part=modfl(value,&int_part) ; /** modulo float */
/** variables for splitting in integer and float part */
char *int_part_str_bin=malloc(128) ;
char *float_part_str_bin=malloc(128) ;
memset(int_part_str_bin,'\0',128) ;
memset(float_part_str_bin,'\0',128) ;
/** Perform splitting in integer and float part */
inttobin((long long) int_part,int_part_str_bin) ;
__inttobinfloatpart(float_part,float_part_str_bin,128) ;
/** result binary string variable (pointer given as argument) */
memset(buffer,'\0',128) ;
if ( ( value < 0) && (int_part_str_bin[0] != '-') ) {
/** Case value to convert in binfloat string is negativ */
strcpy(buffer,"-") ;
}
/** Assemble final binary string */
strcat(buffer,int_part_str_bin) ;
strcat(buffer,".") ;
strcat(buffer,float_part_str_bin) ;
buffer[127]='\0' ;
return buffer ;
}
main(){
int n, count;
//array of small letters
char sletter[27] = "abcdefghijklmnopqrstuvwxyz";
//array of big letters
char bletter[27] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
//check the int value of small letters from a to z
for(count = 0; count<26; count++){
n=sletter[count]; //get int value of a characters
printf("%c = %d = ",sletter[count],n ); //print a character and its integer value
inttobin(n);//calls function to convert integer value to binary and prints it
printf("\n");
}
printf("\nThe Big Letters\n\n");
//check the int value of BIG letters from A to Z
for(count = 0; count<26; count++){
n=bletter[count];//get int value of a characters
printf("%c = %d = ",bletter[count],n );//print a character and its integer value
inttobin(n);//calls function to convert integer value to binary and prints it
printf("\n");
}
getch(); //i don't know, it's my practice so the program won't terminate immediately after running.
return 0;
}
