/usr/share/doc/libplplot12/examples/c/ext-cairo-test.c is in libplplot-dev 5.10.0+dfsg2-0.1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 | #include <stdio.h>
#include <cairo.h>
#include <cairo-ps.h>
#include <plplot.h>
int main( int argc, const char *argv[] )
{
cairo_surface_t *cairoSurface;
cairo_t *cairoContext;
cairoSurface = cairo_ps_surface_create( "ext-cairo-test.ps", 720, 540 );
cairoContext = cairo_create( cairoSurface );
plparseopts( &argc, argv, PL_PARSE_FULL );
plsdev( "extcairo" );
plinit();
pl_cmd( PLESC_DEVINIT, cairoContext );
plenv( 0.0, 1.0, 0.0, 1.0, 1, 0 );
pllab( "x", "y", "title" );
plend();
cairo_destroy( cairoContext );
cairo_surface_destroy( cairoSurface );
exit( 0 );
}
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