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NULL Macro
Diagnostic Printed by the assert Function
Character Testing
Domain Errors
Underflow of Floating-Point Values
The fmod Function
The signal Function
Default Signals
Terminating Newline Characters
Blank Lines
Null Characters
File Position in Append Mode
Truncation of Text Files
File Buffering
Zero-Length Files
Filenames
File Access Limits
Deleting Open Files
Renaming with a Name That Exists
Reading Pointer Values
Reading Ranges
File Position Errors
Messages Generated by the perror Function
Allocating Zero Memory
The abort Function
The atexit Function
Environment Names
The system Function
The strerror Function
The Time Zone
The clock Function
Implementation-Defined Behavior