fmtmsg.h - message display structures
The <fmtmsg.h> header defines the following macros, which expand to constant integral expressions:
- Source of the condition is hardware.
- Source of the condition is software.
- Source of the condition is firmware.
- Condition detected by application.
- Condition detected by utility.
- Condition detected by operating system.
- Recoverable error.
- Non-recoverable error.
- Error causing application to halt.
- Application has encountered a non-fatal fault.
- Application has detected unusual non-error condition.
- Informative message.
- No severity level provided for the message.
- Display message on standard error.
- Display message on system console.
The table below indicates the null values and identifiers for fmtmsg() arguments. The <fmtmsg.h> header defines the macros in the Identifier column, which expand to constant expressions that expand to expressions of the type indicated in the Type column:
Argument Type Null-Value Identifier label char* (char*)0 MM_NULLLBL severity int 0 MM_NULLSEV class long int 0L MM_NULLMC text char* (char*)0 MM_NULLTXT action char* (char*)0 MM_NULLACT tag char* (char*)0 MM_NULLTAG
The <fmtmsg.h> header also defines the following macros for use as return values for fmtmsg():
- The function succeeded.
- The function failed completely.
- The function was unable to generate a message on standard error, but otherwise succeeded.
- The function was unable to generate a console message, but otherwise succeeded.
The following is declared as a function and may also be defined as a macro. A function prototype must be provided for use with an ISO C compiler.
int fmtmsg(long, const char*, int, const char*, const char*, const char*);