About ILE C/C++ Runtime Library Functions (SC41-5607)
Who should read this book
A note about examples
Prerequisite and related information
How to send your comments
Summary of Changes
Runtime Library Functions
Include Files
Machine Interface (MI) Include Files
Library Functions
The C/C++ Library
Error Handling
Searching and Sorting
Time Manipulation
Type Conversion
Record Input/Output
Stream Input/Output
Handling Argument Lists
Pseudorandom Numbers
Dynamic Memory Management
Memory Objects
Environment Interaction
String Operations
Character Testing
Multibyte Character Testing
Character Case Mapping
Multibyte Character Manipulation
Data Areas
Message Catalogs
Regular Expression
abort() — Stop a Program
abs() — Calculate Integer Absolute Value
acos() — Calculate Arccosine
asctime() — Convert Time to Character String
asctime_r() — Convert Time to Character String (Restartable)
asin() — Calculate Arcsine
assert() — Verify Condition
atan() – atan2() — Calculate Arctangent
atexit() — Record Program Ending Function
atof() — Convert Character String to Float
atoi() — Convert Character String to Integer
atol() — atoll() — Convert Character String to Long or Long Long Integer
Bessel Functions
bsearch() — Search Arrays
btowc() — Convert Single Byte to Wide Character
_C_Get_Ssn_Handle() — Handle to C Session
calloc() — Reserve and Initialize Storage
catclose() — Close Message Catalog
catgets() — Retrieve a Message from a Message Catalog
catopen() — Open Message Catalog
ceil() — Find Integer >=Argument
clearerr() — Reset Error Indicators
clock() — Determine Processor Time
cos() — Calculate Cosine
cosh() — Calculate Hyperbolic Cosine
_C_Quickpool_Debug() — Modify Quick Pool Memory Manager Characteristics
_C_Quickpool_Init() — Initialize Quick Pool Memory Manager
_C_Quickpool_Report() — Generate Quick Pool Memory Manager Report
ctime() — Convert Time to Character String
ctime64() — Convert Time to Character String
ctime_r() — Convert Time to Character String (Restartable)
ctime64_r() — Convert Time to Character String (Restartable)
_C_TS_malloc_debug() — Determine amount of teraspace memory used (with optional dumps and verification)
_C_TS_malloc_info() — Determine amount of teraspace memory used
difftime() — Compute Time Difference
difftime64() — Compute Time Difference
div() — Calculate Quotient and Remainder
erf() – erfc() — Calculate Error Functions
exit() — End Program
exp() — Calculate Exponential Function
fabs() — Calculate Floating-Point Absolute Value
fclose() — Close Stream
fdopen() — Associates Stream With File Descriptor
feof() — Test End-of-File Indicator
ferror() — Test for Read/Write Errors
fflush() — Write Buffer to File
fgetc() — Read a Character
fgetpos() — Get File Position
fgets() — Read a String
fgetwc() — Read Wide Character from Stream
fgetws() — Read Wide-Character String from Stream
fileno() — Determine File Handle
floor() —Find Integer <=Argument
fmod() — Calculate Floating-Point Remainder
fopen() — Open Files
fprintf() — Write Formatted Data to a Stream
fputc() — Write Character
_fputchar - Write Character
fputs() — Write String
fputwc() — Write Wide Character
fputws() — Write Wide-Character String
fread() — Read Items
free() — Release Storage Blocks
freopen() — Redirect Open Files
frexp() — Separate Floating-Point Value
fscanf() — Read Formatted Data
fseek() — fseeko() — Reposition File Position
fsetpos() — Set File Position
ftell() — ftello() — Get Current Position
fwide() — Determine Stream Orientation
fwprintf() — Format Data as Wide Characters and Write to a Stream
fwrite() — Write Items
fwscanf() — Read Data from Stream Using Wide Character
gamma() — Gamma Function
_gcvt - Convert Floating-Point to String
getc() – getchar() — Read a Character
getenv() — Search for Environment Variables
_GetExcData() — Get Exception Data
gets() — Read a Line
getwc() — Read Wide Character from Stream
getwchar() — Get Wide Character from stdin
gmtime() — Convert Time
gmtime64() — Convert Time
gmtime_r() — Convert Time (Restartable)
gmtime64_r() — Convert Time (Restartable)
hypot() — Calculate Hypotenuse
isalnum() - isxdigit() — Test Integer Value
isascii() — Test for Character Representable as ASCII Value
isblank() — Test for Blank or Tab Character
iswalnum() to iswxdigit() — Test Wide Integer Value
iswctype() — Test for Character Property
_itoa - Convert Integer to String
labs() — llabs() — Calculate Absolute Value of Long and Long Long Integer
ldexp() — Multiply by a Power of Two
ldiv() — lldiv() — Perform Long and Long Long Division
localeconv() — Retrieve Information from the Environment
localtime() — Convert Time
localtime64() — Convert Time
localtime_r() — Convert Time (Restartable)
localtime64_r() — Convert Time (Restartable)
log() — Calculate Natural Logarithm
log10() — Calculate Base 10 Logarithm
_ltoa - Convert Long Integer to String
longjmp() — Restore Stack Environment
malloc() — Reserve Storage Block
mblen() — Determine Length of a Multibyte Character
mbrlen() — Determine Length of a Multibyte Character (Restartable)
mbrtowc() — Convert a Multibyte Character to a Wide Character (Restartable)
mbsinit() — Test State Object for Initial State
mbsrtowcs() — Convert a Multibyte String to a Wide Character String (Restartable)
mbstowcs() — Convert a Multibyte String to a Wide Character String
mbtowc() — Convert Multibyte Character to a Wide Character
memchr() — Search Buffer
memcmp() — Compare Buffers
memcpy() — Copy Bytes
memicmp() - Compare Bytes
memmove() — Copy Bytes
memset() — Set Bytes to Value
mktime() — Convert Local Time
mktime64() — Convert Local Time
modf() — Separate Floating-Point Value
nextafter() — nextafterl()— nexttoward() — nexttowardl() — Calculate the Next Representable Floating-Point Value
nl_langinfo() —Retrieve Locale Information
perror() — Print Error Message
pow() — Compute Power
printf() — Print Formatted Characters
putc() – putchar() — Write a Character
putenv() — Change/Add Environment Variables
puts() — Write a String
putwc() — Write Wide Character
putwchar() — Write Wide Character to stdout
qsort() — Sort Array
QXXCHGDA() — Change Data Area
QXXDTOP() — Convert Double to Packed Decimal
QXXDTOZ() —Convert Double to Zoned Decimal
QXXITOP() — Convert Integer to Packed Decimal
QXXITOZ() — Convert Integer to Zoned Decimal
QXXPTOD() — Convert Packed Decimal to Double
QXXPTOI() — Convert Packed Decimal to Integer
QXXRTVDA() — Retrieve Data Area
QXXZTOD() — Convert Zoned Decimal to Double
QXXZTOI() — Convert Zoned Decimal to Integer
raise() — Send Signal
rand(), rand_r() — Generate Random Number
_Racquire() — Acquire a Program Device
_Rclose() — Close a File
_Rcommit() — Commit Current Record
_Rdelete() — Delete a Record
_Rdevatr() — Get Device Attributes
realloc() — Change Reserved Storage Block Size
regcomp() — Compile Regular Expression
regerror() — Return Error Message for Regular Expression
regexec() — Execute Compiled Regular Expression
regfree() — Free Memory for Regular Expression
remove() — Delete File
rename() — Rename File
rewind() — Adjust Current File Position
_Rfeod() — Force the End-of-Data
_Rfeov() — Force the End-of-File
_Rformat() — Set the Record Format Name
_Rindara() — Set Separate Indicator Area
_Riofbk() — Obtain I/O Feedback Information
_Rlocate() — Position a Record
_Ropen() — Open a Record File for I/O Operations
_Ropnfbk() — Obtain Open Feedback Information
_Rpgmdev() — Set Default Program Device
_Rreadd() — Read a Record by Relative Record Number
_Rreadf() — Read the First Record
_Rreadindv() — Read from an Invited Device
_Rreadk() — Read a Record by Key
_Rreadl() — Read the Last Record
_Rreadn() — Read the Next Record
_Rreadnc() — Read the Next Changed Record in a Subfile
_Rreadp() — Read the Previous Record
_Rreads() — Read the Same Record
_Rrelease() — Release a Program Device
_Rrlslck() — Release a Record Lock
_Rrollbck() — Roll Back Commitment Control Changes
_Rupdate() — Update a Record
_Rupfb() — Provide Information on Last I/O Operation
_Rwrite() — Write the Next Record
_Rwrited() — Write a Record Directly
_Rwriterd() — Write and Read a Record
_Rwrread() — Write and Read a Record (separate buffers)
scanf() — Read Data
setbuf() — Control Buffering
setjmp() — Preserve Environment
setlocale() — Set Locale
setvbuf() — Control Buffering
signal() — Handle Interrupt Signals
sin() — Calculate Sine
sinh() — Calculate Hyperbolic Sine
snprintf() — Print Formatted Data to Buffer
sprintf() — Print Formatted Data to Buffer
sqrt() — Calculate Square Root
srand() — Set Seed for rand() Function
sscanf() — Read Data
strcasecmp() — Compare Strings without Case Sensitivity
strcat() — Concatenate Strings
strchr() — Search for Character
strcmp() — Compare Strings
strcmpi() - Compare Strings Without Case Sensitivity
strcoll() — Compare Strings
strcpy() — Copy Strings
strcspn() — Find Offset of First Character Match
strdup - Duplicate String
strerror() — Set Pointer to Runtime Error Message
strfmon() — Convert Monetary Value to String
strftime() — Convert Date/Time to String
stricmp() - Compare Strings without Case Sensitivity
strlen() — Determine String Length
strncasecmp() — Compare Strings without Case Sensitivity
strncat() — Concatenate Strings
strncmp() — Compare Strings
strncpy() — Copy Strings
strnicmp - Compare Substrings Without Case Sensitivity
strnset - strset - Set Characters in String
strpbrk() — Find Characters in String
strptime()— Convert String to Date/Time
strrchr() — Locate Last Occurrence of Character in String
strspn() —Find Offset of First Non-matching Character
strstr() — Locate Substring
strtod() — strtof() — strtold — Convert Character String to Double, Float, and Long Double
strtod32() — strtod64() — strtod128() — Convert Character String to Decimal Floating-Point
strtok() — Tokenize String
strtok_r() — Tokenize String (Restartable)
strtol() — strtoll() — Convert Character String to Long and Long Long Integer
strtoul() — strtoull() — Convert Character String to Unsigned Long and Unsigned Long Long Integer
strxfrm() — Transform String
swprintf() — Format and Write Wide Characters to Buffer
swscanf() — Read Wide Character Data
system() — Execute a Command
tan() — Calculate Tangent
tanh() — Calculate Hyperbolic Tangent
time() — Determine Current Time
time64() — Determine Current Time
tmpfile() — Create Temporary File
tmpnam() — Produce Temporary File Name
toascii() — Convert Character to Character Representable by ASCII
tolower() – toupper() — Convert Character Case
towctrans() — Translate Wide Character
towlower() –towupper() — Convert Wide Character Case
_ultoa - Convert Unsigned Long Integer to String
ungetc() — Push Character onto Input Stream
ungetwc() — Push Wide Character onto Input Stream
va_arg() – va_end() – va_start() — Access Function Arguments
vfprintf() — Print Argument Data to Stream
vfscanf() — Read Formatted Data
vfwprintf() — Format Argument Data as Wide Characters and Write to a Stream
vfwscanf() — Read Formatted Wide Character Data
vprintf() — Print Argument Data
vscanf() — Read Formatted Data
vsnprintf() — Print Argument Data to Buffer
vsprintf() — Print Argument Data to Buffer
vsscanf() — Read Formatted Data
vswprintf() — Format and Write Wide Characters to Buffer
vswscanf() — Read Formatted Wide Character Data
vwprintf() — Format Argument Data as Wide Characters and Print
vwscanf() — Read Formatted Wide Character Data
wcrtomb() — Convert a Wide Character to a Multibyte Character (Restartable)
wcscat() — Concatenate Wide-Character Strings
wcschr() — Search for Wide Character
wcscmp() — Compare Wide-Character Strings
wcscoll() —Language Collation String Comparison
wcscpy() — Copy Wide-Character Strings
wcscspn() — Find Offset of First Wide-Character Match
wcsftime() — Convert to Formatted Date and Time
__wcsicmp() — Compare Wide Character Strings without Case Sensitivity
wcslen() — Calculate Length of Wide-Character String
wcslocaleconv() — Retrieve Wide Locale Information
wcsncat() — Concatenate Wide-Character Strings
wcsncmp() — Compare Wide-Character Strings
wcsncpy() — Copy Wide-Character Strings
__wcsnicmp() — Compare Wide Character Strings without Case Sensitivity
wcspbrk() — Locate Wide Characters in String
wcsptime()— Convert Wide Character String to Date/Time
wcsrchr() — Locate Last Occurrence of Wide Character in String
wcsrtombs() — Convert Wide Character String to Multibyte String (Restartable)
wcsspn() — Find Offset of First Non-matching Wide Character
wcsstr() — Locate Wide-Character Substring
wcstod() — Convert Wide-Character String to Double
wcstod32() — wcstod64() — wcstod128()— Convert Wide-Character String to Decimal Floating-Point
wcstok() — Tokenize Wide-Character String
wcstol() — wcstoll() — Convert Wide Character String to Long and Long Long Integer
wcstombs() — Convert Wide-Character String to Multibyte String
wcstoul() — wcstoull() — Convert Wide Character String to Unsigned Long and Unsigned Long Long Integer
wcswcs() — Locate Wide-Character Substring
wcswidth() — Determine the Display Width of a Wide Character String
wcsxfrm() — Transform a Wide-Character String
wctob() — Convert Wide Character to Byte
wctomb() — Convert Wide Character to Multibyte Character
wctrans() —Get Handle for Character Mapping
wctype() — Get Handle for Character Property Classification
wcwidth() — Determine the Display Width of a Wide Character
wfopen() —Open Files
wmemchr() —Locate Wide Character in Wide-Character Buffer
wmemcmp() —Compare Wide-Character Buffers
wmemcpy() —Copy Wide-Character Buffer
wmemmove() — Copy Wide-Character Buffer
wmemset() — Set Wide Character Buffer to a Value
wprintf() — Format Data as Wide Characters and Print
wscanf() — Read Data Using Wide-Character Format String
Runtime Considerations
errno Macros
errno Values for Integrated File System Enabled C Stream I/O
Record Input and Output Error Macro to Exception Mapping
Signal Handling Action Definitions
Signal to i5/OS Exception Mapping
Cancel Handler Reason Codes
Exception Classes
Data Type Compatibility
Runtime Character Set
Understanding CCSIDs and Locales
CCSIDs of Characters and Character Strings
Wide Characters
Asynchronous Signal Model
Unicode Support
Reasons to Use Unicode Support
Pseudo-CCSID Neutrality
Unicode from Other ILE Languages
Standard Files
Default File CCSID
Newline Character
Conversion Errors
Heap Memory
Heap Memory Overview
Heap Memory Manager
Default Memory Manager
Quick Pool Memory Manager
Debug Memory Manager
Environment Variables
Diagnosing C2M1211/C2M1212 Message Problems
Appendix A. Library Functions and Extensions
Standard C Library Functions Table, By Name
ILE C Library Extensions to C Library Functions Table
Appendix B. Notices
Programming interface information

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