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C166 User's Guide

C166 Introduction Compiling Programs Language Extensions Preprocessor Advanced Programming Error Messages Library Reference Library Files Source Code Standard Types jmp_buf ptrdiff_t size_t va_list wchar_t Macros HARRAY HVAR MARRAY MVAR XARRAY XVAR Routines By Category Buffer Manipulation Routines Character Routines Data Conversion Routines Intrinsic Routines Math Routines Memory Allocation Routines Stream I/O Routines String Routines Variable Length Argument Routines Miscellaneous Routines Include Files SFR Definitions absacc.h assert.h ctype.h float.h intrins.h limits.h math.h membox.h setjmp.h stdarg.h stddef.h stdio.h stdlib.h string.h Reference _alloc_boxf _alloc_boxh _alloc_boxn _atomic_ _bfld_ _calloc_boxf _calloc_boxh _calloc_boxn _chkdouble_ _chkfloat_ _crol_ _cror_ _diswdt_ _einit_ _endatomic_ _free_boxf _free_boxh _free_boxn _getkey _idle_ _init_boxf _init_boxh _init_boxn _irol_ _iror_ _lrol_ _lror_ _nop_ _pop_ _prior_ _priord_ _push_ _pwrdn_ _sof_ _srvwdt_ _testclear_ _testset_ _tolower _toupper _trap_ abs acos asin assert atan atan2 atof atoi atol calloc calloc_b ceil cos cosh exp fabs floor fmemccpy fmemchr fmemcmp fmemcpy fmemmove fmemset fmod free free_b fstrcat fstrchr fstrcmp fstrcpy fstrcspn fstrlen fstrncat fstrncmp fstrncpy fstrpbrk fstrpos fstrrchr fstrrpbrk fstrrpos fstrspn getchar gets hmemcmp hmemcpy hstrcmp hstrcpy init_mempool init_mempool_b isalnum isalpha iscntrl isdigit isgraph islower isprint ispunct isspace isupper isxdigit labs log log10 longjmp malloc malloc_b memccpy memchr memcmp memcpy memmove memset modf offsetof pow printf putchar puts rand realloc realloc_b scanf setjmp sin sinh sprintf sqrt srand sscanf strcat strchr strcmp strcpy strcspn strlen strncat strncmp strncpy strpbrk strpos strrchr strrpbrk strrpos strspn strstr strtod strtol strtoul tan tanh toascii toint tolower toupper ungetchar va_arg va_end va_start vprintf vsprintf xcalloc xfree xinit_mempool xmalloc xmemccpy xmemchr xmemcmp xmemcpy xmemmove xmemset xrealloc xstrcmp xstrcpy xstrlen xstrncpy Appendix

String Routines

Routine Attributes Description
strcat reentrant Concatenates two strings.
strchr reentrant Returns a pointer to the first occurrence of a specified character in a string.
strcmp reentrant Compares two strings.
strcpy reentrant Copies one string to another.
strcspn reentrant Returns the index of the first character in a string that matches any character in a second string.
strlen reentrant Returns the length of a string.
strncat reentrant Concatenates up to a specified number of characters from one string to another.
strncmp reentrant Compares two strings up to a specified number of characters.
strncpy reentrant Copies up to a specified number of characters from one string to another.
strpbrk reentrant Returns a pointer to the first character in a string that matches any character in a second string.
strpos reentrant Returns the index of the first occurrence of a specified character in a string.
strrchr reentrant Returns a pointer to the last occurrence of a specified character in a string.
strrpbrk reentrant Returns a pointer to the last character in a string that matches any character in a second string.
strrpos reentrant Returns the index of the last occurrence of a specified character in a string.
strspn reentrant Returns the index of the first character in a string that does not match any character in a second string.
strstr reentrant Returns a pointer in a string that is identical to a second sub-string.

The string routines are implemented as functions and are prototyped in the string.h include file. They perform the following operations:

  • Copying strings
  • Appending one string to the end of another
  • Comparing two strings
  • Locating one or more characters from a specified set in a string

All string functions operate on null-terminated character strings. Use the buffer manipulation routines to work on non-terminated strings.

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