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numbers.c
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numbers.c
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#include "main.h"
/**
* _isdigit - checks if character is digit
* @c: the character to check
*
* Return: 1 if digit, 0 otherwise
*/
int _isdigit(int c)
{
return (c >= '0' && c <= '9');
}
/**
* _strlen - returns the length of a string
* @s: the string whose length to check
*
* Return: integer length of string
*/
int _strlen(char *s)
{
int i = 0;
while (*s++)
i++;
return (i);
}
/**
* print_number - prints a number with options
* @str: the base number as a string
* @params: the parameter struct
*
* Return: chars printed
*/
int print_number(char *str, params_t *params)
{
unsigned int i = _strlen(str);
int neg = (!params->unsign && *str == '-');
if (!params->precision && *str == '0' && !str[1])
str = "";
if (neg)
{
str++;
i--;
}
if (params->precision != UINT_MAX)
while (i++ < params->precision)
*--str = '0';
if (neg)
*--str = '-';
if (!params->minus_flag)
return (print_number_right_shift(str, params));
else
return (print_number_left_shift(str, params));
}
/**
* print_number_right_shift - prints a number with options
* @str: the base number as a string
* @params: the parameter struct
*
* Return: chars printed
*/
int print_number_right_shift(char *str, params_t *params)
{
unsigned int n = 0, neg, neg2, i = _strlen(str);
char pad_char = ' ';
if (params->zero_flag && !params->minus_flag)
pad_char = '0';
neg = neg2 = (!params->unsign && *str == '-');
if (neg && i < params->width && pad_char == '0' && !params->minus_flag)
str++;
else
neg = 0;
if ((params->plus_flag && !neg2) ||
(!params->plus_flag && params->space_flag && !neg2))
i++;
if (neg && pad_char == '0')
n += _putchar('-');
if (params->plus_flag && !neg2 && pad_char == '0' && !params->unsign)
n += _putchar('+');
else if (!params->plus_flag && params->space_flag && !neg2 &&
!params->unsign && params->zero_flag)
n += _putchar(' ');
while (i++ < params->width)
n += _putchar(pad_char);
if (neg && pad_char == ' ')
n += _putchar('-');
if (params->plus_flag && !neg2 && pad_char == ' ' && !params->unsign)
n += _putchar('+');
else if (!params->plus_flag && params->space_flag && !neg2 &&
!params->unsign && !params->zero_flag)
n += _putchar(' ');
n += _puts(str);
return (n);
}
/**
* print_number_left_shift - prints a number with options
* @str: the base number as a string
* @params: the parameter struct
*
* Return: chars printed
*/
int print_number_left_shift(char *str, params_t *params)
{
unsigned int n = 0, neg, neg2, i = _strlen(str);
char pad_char = ' ';
if (params->zero_flag && !params->minus_flag)
pad_char = '0';
neg = neg2 = (!params->unsign && *str == '-');
if (neg && i < params->width && pad_char == '0' && !params->minus_flag)
str++;
else
neg = 0;
if (params->plus_flag && !neg2 && !params->unsign)
n += _putchar('+'), i++;
else if (params->space_flag && !neg2 && !params->unsign)
n += _putchar(' '), i++;
n += _puts(str);
while (i++ < params->width)
n += _putchar(pad_char);
return (n);
}