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Diffstat (limited to 'man/man3/assert.3')
| -rw-r--r-- | man/man3/assert.3 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/man/man3/assert.3 b/man/man3/assert.3 new file mode 100644 index 00000000..135560f5 --- /dev/null +++ b/man/man3/assert.3 @@ -0,0 +1,25 @@ +.TH ASSERT 3 +.SH NAME +assert \- check program invariants +.SH SYNOPSIS +.B #include <u.h> +.br +.B #include <libc.h> +.PP +.B +#define assert if(cond);else _assert("cond") +.PP +.B +void _assert(int cond) +.SH DESCRIPTION +.I Assert +is a preprocessor macro that +(via +.IR _assert ) +prints a message and calls +.I abort +when +.I cond +is false. +.SH SOURCE +.B /sys/src/libc/port/_assert.c |