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.
14 _PDCLIB_uintmax_t _PDCLIB_strtox_main( const char ** p, unsigned int base, uintmax_t error, uintmax_t limval, int limdigit, char * sign )
16 _PDCLIB_uintmax_t rc = 0;
19 while ( ( x = memchr( _PDCLIB_digits, tolower(**p), base ) ) != NULL )
21 digit = x - _PDCLIB_digits;
22 if ( ( rc < limval ) || ( ( rc == limval ) && ( digit <= limdigit ) ) )
24 rc = rc * base + (unsigned)digit;
30 /* TODO: Only if endptr != NULL - but do we really want *another* parameter? */
31 /* TODO: Earlier version was missing tolower() here but was not caught by tests */
32 while ( memchr( _PDCLIB_digits, tolower(**p), base ) != NULL ) ++(*p);
33 /* TODO: This is ugly, but keeps caller from negating the error value */
50 #include "_PDCLIB_test.h"
61 /* basic functionality */
64 TESTCASE( _PDCLIB_strtox_main( &p, 10u, (uintmax_t)999, (uintmax_t)12, 3, &sign ) == 123 );
65 TESTCASE( errno == 0 );
66 TESTCASE( p == &test[3] );
67 /* proper functioning to smaller base */
69 TESTCASE( _PDCLIB_strtox_main( &p, 8u, (uintmax_t)999, (uintmax_t)12, 3, &sign ) == 0123 );
70 TESTCASE( errno == 0 );
71 TESTCASE( p == &test[3] );
72 /* overflowing subject sequence must still return proper endptr */
74 TESTCASE( _PDCLIB_strtox_main( &p, 4u, (uintmax_t)999, (uintmax_t)1, 2, &sign ) == 999 );
75 TESTCASE( errno == ERANGE );
76 TESTCASE( p == &test[3] );
77 TESTCASE( sign == '+' );
78 /* testing conversion failure */
82 TESTCASE( _PDCLIB_strtox_main( &p, 10u, (uintmax_t)999, (uintmax_t)99, 8, &sign ) == 0 );
83 TESTCASE( p == NULL );