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conversions.c: Add conversions for largest max sized integer

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Added a conversion for umax (largest maximum sized integer allowed). Adjusted
the other current conversion functions (uint and ulong) to be derivatives of
the umax conversion since they are simply subsets of umax.

Also made the negative check move the pointer on spaces since strtoumax does it
anyways.

Change-Id: I56c2ef2629d49b524c8df58af12951c181f81f08
This commit is contained in:
Kevin Harwell
2019-05-06 16:26:46 -05:00
parent 8357ab7e9a
commit edc3e0df1a
3 changed files with 95 additions and 14 deletions
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20
include/asterisk/conversions.h
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@@ -23,6 +23,8 @@
#ifndef _ASTERISK_CONVERSIONS_H
#define _ASTERISK_CONVERSIONS_H
#include <stdint.h>
/*!
* \brief Convert the given string to an unsigned integer
*
@@ -59,4 +61,22 @@ int ast_str_to_uint(const char *str, unsigned int *res);
*/
int ast_str_to_ulong(const char *str, unsigned long *res);
/*!
* \brief Convert the given string to an unsigned max size integer
*
* This function will return failure for the following reasons:
*
* The given string to convert is NULL
* The given string to convert is empty.
* The given string to convert is negative (starts with a '-')
* The given string to convert contains non numeric values
* Once converted the number is out of range (greater than UINTMAX_MAX)
*
* \param str The string to convert
* \param res [out] The converted value
*
* \returns -1 if it fails to convert, 0 on success
*/
int ast_str_to_umax(const char *str, uintmax_t *res);
#endif /* _ASTERISK_CONVERSIONS_H */