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47 lines
1.4 KiB
Groff
47 lines
1.4 KiB
Groff
4 years ago
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.TH "<assert.h>: Diagnostics" 3 "24 Jun 2019" "Version 2.0.0" "avr-libc" \" -*- nroff -*-
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.ad l
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.nh
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.SH NAME
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<assert.h>: Diagnostics \-
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.SS "Defines"
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.in +1c
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.ti -1c
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.RI "#define \fBassert\fP(expression)"
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.br
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.in -1c
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.SH "Detailed Description"
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.PP
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.PP
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.nf
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#include <assert.h>
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.fi
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.PP
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.PP
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This header file defines a debugging aid.
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.PP
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As there is no standard error output stream available for many applications using this library, the generation of a printable error message is not enabled by default. These messages will only be generated if the application defines the macro
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.PP
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.PP
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.nf
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__ASSERT_USE_STDERR
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.fi
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.PP
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.PP
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before including the \fC<\fBassert.h\fP>\fP header file. By default, only \fBabort()\fP will be called to halt the application.
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.SH "Define Documentation"
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.PP
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.SS "#define assert(expression)"\fBParameters:\fP
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.RS 4
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\fIexpression\fP Expression to test for.
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.RE
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.PP
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The \fBassert()\fP macro tests the given expression and if it is false, the calling process is terminated. A diagnostic message is written to stderr and the function \fBabort()\fP is called, effectively terminating the program.
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.PP
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If expression is true, the \fBassert()\fP macro does nothing.
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.PP
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The \fBassert()\fP macro may be removed at compile time by defining NDEBUG as a macro (e.g., by using the compiler option -DNDEBUG).
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.SH "Author"
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.PP
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Generated automatically by Doxygen for avr-libc from the source code.
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