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 - kernel/none - mp_indep.c (source / functions) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 94.3 % 562 530
Test Date: 2026-08-15 17:02:54 Functions: 96.2 % 52 50
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
addmulii 191161913
addmulii_gen 99908920
addmulii_inplace 1632938230
addmulii_lg3 496926429
affrr 1422901358
dblexpo 27751995
dblmantissa 0
dbltor 13604312
div0r 0
divir 3278537
divrs 20390064
divru 1165687088
divsi 175
divsr 798
divur 2456241
int2n 111047343
int2u 25996442
int2um1 8807
invmod2BIL 61396747
invr 64289342
invr_basecase 64289342
mantissa_real 56100732
modii 3154992904
mul0r 481863
mulii 22012268687
mulir 1024507837
mulrr 4208069571
mulrrz_3 666746333
mulrrz_3end 789782646
mulrrz_end 3786792312
mulrrz_i 3957455305
mulrrz_int 54818641
mulsi 621479854
mulsr 132686652
mulss 201188879
mului 1167949688
mulur 970955529
mulur_2 757877803
muluu 4811731306
rtodbl 312566389
shifti 2325298894
sqri 1963769350
sqrr 602906758
sqrs 742871
sqru 648499301
sqrz_i 568881113
truedvmdii 143827470
truedvmdis 139241389
truedvmdsi 6202318
trunc2nr 62903974
usqrt 258627582
vals 2386786913

Generated by: LCOV version 2.0-1