1 /* _PDCLIB_strtox_main( const char * *, int, _PDCLIB_uintmax_t, _PDCLIB_uintmax_t, int )
3 This file is part of the Public Domain C Library (PDCLib).
4 Permission is granted to use, modify, and / or redistribute at will.
7 #include <_PDCLIB_int.h>
13 _PDCLIB_uintmax_t _PDCLIB_strtox_main( const char ** p, unsigned int base, uintmax_t error, uintmax_t limval, int limdigit, char * sign )
15 _PDCLIB_uintmax_t rc = 0;
18 while ( ( x = memchr( _PDCLIB_digits, tolower(**p), base ) ) != NULL )
20 digit = x - _PDCLIB_digits;
21 if ( ( rc < limval ) || ( ( rc == limval ) && ( digit <= limdigit ) ) )
23 rc = rc * base + (unsigned)digit;
29 /* TODO: Only if endptr != NULL - but do we really want *another* parameter? */
30 /* TODO: Earlier version was missing tolower() here but was not caught by tests */
31 while ( memchr( _PDCLIB_digits, tolower(**p), base ) != NULL ) ++(*p);
32 /* TODO: This is ugly, but keeps caller from negating the error value */
46 #include <_PDCLIB_test.h>
55 /* basic functionality */
58 TESTCASE( _PDCLIB_strtox_main( &p, 10u, (uintmax_t)999, (uintmax_t)12, 3, &sign ) == 123 );
59 TESTCASE( errno == 0 );
60 TESTCASE( p == &test[3] );
61 /* proper functioning to smaller base */
63 TESTCASE( _PDCLIB_strtox_main( &p, 8u, (uintmax_t)999, (uintmax_t)12, 3, &sign ) == 0123 );
64 TESTCASE( errno == 0 );
65 TESTCASE( p == &test[3] );
66 /* overflowing subject sequence must still return proper endptr */
68 TESTCASE( _PDCLIB_strtox_main( &p, 4u, (uintmax_t)999, (uintmax_t)1, 2, &sign ) == 999 );
69 TESTCASE( errno == ERANGE );
70 TESTCASE( p == &test[3] );
71 TESTCASE( sign == '+' );
72 /* testing conversion failure */
76 TESTCASE( _PDCLIB_strtox_main( &p, 10u, (uintmax_t)999, (uintmax_t)99, 8, &sign ) == 0 );
77 TESTCASE( p == NULL );