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