Universal C runtime routines by category

This section lists Universal C runtime (UCRT) library routines by category. For reference convenience, some routines are listed in more than one category. Multibyte-character routines and wide-character routines are grouped with single-byte character counterparts, where they exist.

UCRT library routine categories

The main categories of UCRT library routines are:

Argument Access
Buffer Manipulation
Byte Classification
Character Classification
Complex math support
Data Alignment
Data Conversion
Debug Routines
Directory Control
Error Handling
Exception Handling Routines
File Handling

Floating-Point Support
Input and Output
Internationalization
Memory Allocation
Process and Environment Control
Robustness
Run-Time Error Checking
Searching and Sorting
String Manipulation
System Calls
Time Management

See also

C Run-Time Library Reference