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 - basemath - FpX.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30724-b49b12e983) Lines: 1978 2156 91.7 %
Date: 2026-03-02 09:24:58 Functions: 213 228 93.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
FpV_FpM_polint 0
FpX_FpV_multieval 0
FpX_FpXV_multirem 0
FpX_Fp_add_shallow 0
FpX_chinese_coprime 0
FpX_integ 0
FpXn_exp 0
FpXn_sqr 0
FqV_inv 0
Rg_is_FpXk 0
_FpXQ_add 0
_FpX_one 0
_FpX_red 0
_FpX_zero 0
get_FpX_algebra 0
FpXQ_conjvec 8
matJ2_FpXM 8
FpVV_polint_tree 15
FpXQ_charpoly 15
FpV_polint 22
FpX_extresultant_basecase 24
matid2_FpXM 24
FpXQ_autpow_msqr 42
FpX_disc 42
Fq_ispower 70
FpXQM_autsum 77
FpXQM_autsum_sqr 77
FpX_extresultant 77
FpXM_FpXQV_eval 105
FpXQM_autsum_mul 105
FpX_halfres 106
FpXXk_divexact_i 182
FpX_invLaplace 186
FpXXk_FpX_div_i 245
FpXQ_auttrace_sqr 317
FpXQ_auttrace_mul 360
FpXQ_auttrace 434
_FpXQ_easylog 469
FpXk_gcd 518
FpXQ_sqrtl_spec 543
FpXC_FpXQ_eval 588
FpXV_chinese 588
FpXV_chinese_tree 588
FpXV_chinesetree 588
FpXV_invdivexact 588
FpXV_producttree 588
FpXV_sqr 588
FpX_FpXV_multirem_tree 588
gc_chinese 588
FpX_Laplace 590
FpXXk_FpX_div 602
_FpXQ_rand 679
FpX_gcd_check 814
FpXQ_sqrtn_spec 858
FpX_halfgcd 977
FpX_convol 994
FpXXkX_FpXXk_divexact 1015
Fp_neg_FpX 1025
FpXC_FpXQV_eval 1050
FpXQ_sumautsum_msqr 1123
FpXXkX_FpXXk_divexact_s 1183
FpXQ_sqrtn 1222
FpXQ_sumautsum 1266
FpXk_mul 1372
FpX_invBarrett_Newton 1502
FpXQ_transmul_init 1660
FpXXk_primpart_FpX 1680
FpXXk_rec 1680
FpXQ_autpowers 1736
FpXQ_order 1814
Z_to_FpX 1866
FpXQ_sumautsum_sqr 2264
FpXQ_autsum 2784
get_FpXQ_star 2807
FpXQ_autsum_sqr 2910
FpXXk_divides 3052
FpXQ_autsum_mul 3070
FpXXk_content 3276
_FpXQ_zero 3360
FpX_halfres_update 3749
FpX_invBarrett_basecase 3939
FpX_resultant_basecase 3969
bounded_order 4324
FpXQ_autpow 4453
FpXQ_autpow_sqr 4547
FpXV_FpX_fromdigits 4564
FpXXk_divides_i 4725
FpXXk_content_FpX 5222
FpX_invBarrett 5494
FpXXk_divexact_s 5621
RgXXk_modXn 6125
RgXXk_shift 6125
FpXn_div 6412
FpXn_inv 6412
gener_FpXQ 7030
FpXQ_transmul 7175
FpXT_sqr 7602
FpX_divu 8610
get_FpXQ_algebra 10199
FpXXkX_FpXXk_divides_s 10395
RgXk_var_lowest 11095
FpX_Fp_sub_shallow 11146
FpX_fromNewton 11348
FpX_digits 11403
FpXXk_gcd_i 12985
FpX_extgcd_halfgcd 13757
FpXQ_minpoly 14027
FpX_halfgcd_all_i 16550
FpX_halfgcd_all 16690
FpX_FpXM_qmul 17162
FpXM_mul2 17253
FpXn_expint 17263
FpX_halfres_split 18960
Fp2_norm 18961
Fp2_sqrt 19392
_FpX_add 20062
FpXQ_trace 21001
Fp_red_FpX 21247
FpXV_factorback 23258
Fp_FpX_sub 25643
FpX_matFrobenius 31493
FpV_invVandermonde 31836
FpV_producttree 31850
FpX_FpV_multieval_tree 31850
FpXV_producttree_dbl 32438
FpX_FpXV_multirem_dbl_tree 32438
FpX_halfres_basecase 33802
FpV_inv 34280
_FpX_pow 35493
FpXM_FpX_mul2 36106
FpX_halfres_i 52762
_FpXQ_sub 52941
FpX_gcd_basecase 53064
FpX_integXn 55575
_FpXQ_red 59395
FpXn_mulhigh 59480
FpXk_renormalize 60802
FpX_dotproduct 61210
Rg_to_FpXk 65933
FpXQ_matrix_pow 66289
FpXQ_sqrt 78673
gener_FpXQ_local 84112
gener_FpXQ_i 84148
_FpX_sqr 86660
FpX_addmulmul 87863
FpX_halve 92694
FpV_roots_to_pol 93397
FpX_mulhigh_i 115055
_FpX_divrem 134778
FpXXk_divides_s 137368
FpX_Fp_mul_to_monic 138339
FpX_div_by_X_x 166417
FpX_rescale 178964
FpXn_red 204530
_FpXQ_one 218978
FpX_valrem 254680
random_FpX 258003
FpXV_prod 311888
FpX_center 314091
FpX_powu 318342
FpXQ_norm 363815
_FpX_mul 373028
FpXQ_powers 389047
FpXQ_issquare 401219
FpXV_red 403253
RgXV_to_RgM_lg 415677
RgX_blocks_RgM 415686
FpX_FpXQV_eval 416214
FpX_resultant 416991
FpX_Frobenius 462134
FpX_neg 467276
FpX_Newton 523618
FpXQ_div 530976
FpXn_recip 534474
Fp_FpXQ_log 544095
FpX_Fp_sub 547698
FpX_extgcd_basecase 583992
FpXQ_powu 608117
FpX_Fp_div 611490
FpXQ_log 707979
FpX_is_squarefree 716090
FpX_FpXQ_eval 795997
FpX_divrem_Barrett 815491
FpX_divrem_Barrettspec 816238
_FpXQ_pow 826923
FpXQ_pow_Frobenius 842021
FpX_Fp_add 892376
FpX_eval 967193
FpX_shift 985352
FpX_gcd 1037357
FpX_mulu 1059689
FpXQ_inv 1097052
FpXQ_invsafe 1097052
Fp_issquare 1335844
FpX_extgcd 1440650
FpXQ_pow 1565278
FpXT_red 1580606
FpX_get_red 1622716
Fq_issquare 1630801
FpX_deriv 1632470
FpX_recipspec 1638353
ZX_lgrenormalizespec 1663124
FpX_normalize 1852325
to_Flxq 2135167
FpX_center_i 2246808
Fq_log 2478432
FpXn_mul 2564804
_FpXQ_mul 2712461
FpXk_sub 3718568
FpXk_red 4514503
FpX_Fp_mul 5698719
FpX_Fp_mulspec 5713287
_FpXQ_sqr 5836585
FpXQ_sqr 6747967
FpX_sqr 6940765
FpX_mulspec 9201606
FpXQ_mul 12028949
FpX_divrem 14456668
FpX_sub 14564613
FpX_subspec 15380864
FpX_add 16370313
FpXQ_red 17783994
FpX_mul 27285168
to_Flx 44324598
FpX_divrem_basecase 67109124
FpX_rem 72412119
get_FpX_red 86876975
FpX_red 95963210

Generated by: LCOV version 1.16