strnlen_s.c File Reference
#include "safeclib_private.h"#include "safe_str_constraint.h"#include "safe_str_lib.h"
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Functions | |
| rsize_t | strnlen_s (const char *dest, rsize_t dmax) |
| The strnlen_s function computes the length of the string pointed to by dest. More... | |
Function Documentation
◆ strnlen_s()
| rsize_t strnlen_s | ( | const char * | dest, |
| rsize_t | dmax | ||
| ) |
The strnlen_s function computes the length of the string pointed to by dest.
- Remarks
- SPECIFIED IN ISO/IEC TR 24731-1, Programming languages, environments and system software interfaces, Extensions to the C Library, Part I: Bounds-checking interfaces
- Parameters
-
dest pointer to string dmax maximum length of string
- Precondition
- dest shall not be a null pointer.
- dmax shall not equal zero.
- dmax shall not be greater than RSIZE_MAX_STR.
- Returns
- The function returns the string length, excluding the terminating null character. If dest is NULL, then strnlen_s returns 0.
Otherwise, the strnlen_s function returns the number of characters that precede the terminating null character. If there is no null character in the first dmax characters of dest then strnlen_s returns dmax. At most the first dmax characters of dest are accessed by strnlen_s.
- See also
- strnterminate_s()
Definition at line 67 of file strnlen_s.c.