Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - eval.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30622-caa25a75db) Lines: 1305 1893 68.9 %
Date: 2026-01-22 09:18:00 Functions: 116 154 75.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
_bitprecision0 676
_prec 11290
_precision0 1246
bincopy_relink 0
bitprecision0 42
bitprecision00 718
break0 70358
change_compo 9701418
changelex 162345171
changevalue 29490118
check_array_index 107069179
checkprec 11197
checkvalue 123782649
checkvalueptr 23308353
closure_callgen0 7
closure_callgen0prec 168
closure_callgen1 9386463
closure_callgen1prec 76681
closure_callgen2 67073
closure_callgenall 12
closure_callgenvec 4960945
closure_callgenvecdef 336
closure_callgenvecdefprec 336
closure_callgenvecprec 0
closure_callvoid1 0
closure_castgen 93833693
closure_castlong 5873
closure_context 91
closure_disassemble 0
closure_err 12996
closure_eval 321269839
closure_evalbrk 175
closure_evalgen 34050750
closure_evalnobrk 76026531
closure_evalres 935672
closure_evalvoid 160287722
closure_func_err 13714
closure_relink 0
closure_return 50886785
closure_returnupto 14491396
closure_unlink 0
closure_varn 1139171
copybin_unlink 12
copylex 9790695
copyupto 74980143
copyvalue 746851
disassemble_cast 0
err_var 0
evalstate_clone 0
evalstate_get_trace 1036822
evalstate_reset 452
evalstate_restore 56398
evalstate_restore_err 43243
evalstate_save 1430291
evalstate_set_trace 18
freeep 36189
freelex 185897919
gen_relink 0
gen_unlink 16
get_and_reset_break 41660
get_arg_name 21
get_lex 106016669
get_localbitprec 22761153
get_localprec 22378972
get_next_label 248
getlocalbitprec 3416
getlocalprec 14
gp_call 112165
gp_call2 91
gp_callbool 872130
gp_callprec 23478
gp_callvoid 0
gp_eval 39690453
gp_evalbool 26165055
gp_evalprec 20734
gp_evalupto 2052517
gp_evalvoid 4146639
gp_evalvoid2 8436
hash_from_link 0
localbitprec 3359
localprec 7847
loop_break 153434916
lvar_make_safe 0
negcmp 0
new_ptr 58685610
new_val_cell 19295
next0 25850
opcode_need_relink 0
pareval 6
pareval_worker 12
parfor 346
parfor0 346
parfor_init 0
parfor_next 0
parfor_stop 0
parfor_worker 9600
parforeach 7
parforeach0 7
parforeach_init 0
parforeach_next 0
parforeach_stop 0
parforiter_init 0
parforiter_next 0
parforiter_stop 0
parforprime 13
parforprime0 13
parforprime_init 0
parforprime_next 0
parforprime_stop 0
parforprimestep 20
parforprimestep0 7
parforprimestep_init 0
parforstep 39
parforstep0 39
parforstep_init 0
parforstep_next 0
parforstep_stop 0
parforvec 39
parforvec0 39
parforvec_init 0
parforvec_next 0
parforvec_stop 0
pari_close_evaluator 352184
pari_init_evaluator 354772
pari_self 41
parsum 2062
parsum_slice_worker 7522
parvector 31
parvector_worker 628
pop_lex 5606014
pop_localprec 98990
pop_val 18844
pop_val_if_newer 424985
precision0 42
precision00 1288
ptr_proplock 9906322
push_lex 5773367
push_localbitprec 463069
push_localprec 99039
pushlex 63503956
pushvalue 42
reset_break 98510
restore_trace 5662412
restore_vars 321354128
return0 40892
safeel 0
safegcoeff 0
safegel 0
safelistel 0
set_lex 83675993
setreflex 503
st_alloc 3099576437
trace_push 326812616
zerovalue 14

Generated by: LCOV version 1.16