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) Coverage Total Hit
Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 69.3 % 1920 1330
Test Date: 2026-07-23 17:04:59 Functions: 75.6 % 156 118
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
_bitprecision0 676
_prec 11304
_precision0 1246
bincopy_relink 0
bitprecision0 42
bitprecision00 718
break0 70358
change_compo 9701769
changelex 162422356
changevalue 29491317
check_array_index 107083370
checkprec 11211
checkvalue 123986539
checkvalueptr 23308355
closure_callgen0 7
closure_callgen0prec 421
closure_callgen1 9598962
closure_callgen1prec 76681
closure_callgen2 67118
closure_callgenall 12
closure_callgenvec 5254236
closure_callgenvecdef 336
closure_callgenvecdefprec 336
closure_callgenvecprec 0
closure_callvoid1 0
closure_castgen 93847314
closure_castlong 5873
closure_context 91
closure_disassemble 0
closure_err 13004
closure_eval 282665609
closure_evalbrk 175
closure_evalgen 34052505
closure_evalnobrk 76030935
closure_evalres 937237
closure_evalvoid 121137479
closure_func_err 13876
closure_relink 0
closure_return 51444515
closure_returnupto 14997766
closure_unlink 0
closure_varn 1162606
copybin_unlink 12
copylex 9791047
copyupto 75496521
copyvalue 746851
disassemble_cast 0
err_var 0
evalstate_clone 0
evalstate_get_trace 1040570
evalstate_reset 452
evalstate_restore 56415
evalstate_restore_err 43250
evalstate_save 1432294
evalstate_set_trace 18
freeep 36708
freelex 186782142
gen_relink 0
gen_unlink 16
get_and_reset_break 41666
get_arg_name 21
get_lex 66868257
get_localbitprec 22788861
get_localprec 22381982
get_next_label 245
getlocalbitprec 3556
getlocalprec 14
gp_call 114479
gp_call2 91
gp_callbool 872130
gp_callprec 23478
gp_callvoid 0
gp_eval 39693078
gp_evalbool 26166301
gp_evalprec 20734
gp_evalupto 2053896
gp_evalvoid 4146639
gp_evalvoid2 8471
hash_from_link 0
localbitprec 3373
localprec 7847
loop_break 114261028
lvar_make_safe 0
negcmp 0
new_ptr 58686154
new_val_cell 19464
next0 25853
opcode_need_relink 0
pareval 6
pareval_worker 12
parfor 340
parfor0 340
parfor_init 0
parfor_next 0
parfor_stop 0
parfor_worker 9563
parforeach 14
parforeach0 14
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 378540
pari_init_evaluator 378548
pari_self 41
parmatrix 13
parmatrix_worker 87
parsum 2062
parsum_slice_worker 7545
parvector 31
parvector_worker 643
pop_lex 5607054
pop_localprec 99229
pop_val 19016
pop_val_if_newer 426373
precision0 42
precision00 1288
ptr_proplock 9906673
push_lex 5774747
push_localbitprec 487116
push_localprec 99278
pushlex 63698660
pushvalue 42
reset_break 98533
restore_trace 5663469
restore_vars 282652914
return0 40898
safeel 0
safegcoeff 0
safegel 0
safelistel 0
set_lex 83681554
setreflex 504
st_alloc 3010850683
trace_push 288272970
zerovalue 14

Generated by: LCOV version 2.0-1