case_diffb(3) Library Functions Manual case_diffb(3)NAME
case_diffb - compare strings case-insensitively
SYNTAX
#include <case.h>
int case_diffb(const void* a,size_t len,const void* b);
DESCRIPTION
case_diffb is similar to byte_diff. The difference is that for the comparison 'A' == 'a', 'B' == 'b', ..., 'Z' == 'z'.
SEE ALSO byte_diff(3)case_diffb(3)
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case(3) Library Functions Manual case(3)NAME
case - convert ASCII uppercase bytes to lowercase
SYNTAX
#include <case.h>
void case_lowers(s);
void case_lowerb(s,len);
int case_diffs(s,t);
int case_equals(s,t);
int case_starts(s,t);
int case_diffb(s,len,t);
int case_startb(s,len,t);
char *s;
char *t;
unsigned int len;
DESCRIPTION
case_lowers converts each uppercase byte in the string s to lowercase. s must be 0-terminated.
case_lowerb converts each uppercase byte in the buffer s, of length len, to lowercase.
case_diffs lexicographically compares lowercase versions of the strings s and t. It returns something positive, negative, or zero when the
first is larger than, smaller than, or equal to the second. s and t must be 0-terminated.
case_equals means !case_diffs.
case_starts returns 1 if a lowercase version of s starts with a lowercase version of t. s and t must be 0-terminated.
case_diffb lexicographically compares lowercase versions of the buffers s and t, each of length len. It returns something positive, nega-
tive, or zero when the first is larger than, smaller than, or equal to the second.
case_startb returns 1 if a lowercase version of the buffer s, of length len, starts with a lowercase version of the string t. t must be
0-terminated.
The case routines are ASCII-specific. They are suitable for programs that handle case-independent networking protocols.
All comparisons are performed on unsigned bytes.
SEE ALSO byte_diff(3), byte_equal(3), str_diff(3), str_equal(3), str_start(3)case(3)
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