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 - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30734-f1f26dedcb) Lines: 2553 2925 87.3 %
Date: 2026-03-07 09:24:37 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450129
Fl2_inv_pre 197449
Fl2_mul_pre 1955526
Fl2_norm_pre 127656
Fl2_pow_pre 672088
Fl2_sqr_pre 4917814
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76114
Fl_Flxq_log 35578
Fl_Xp1_powu 0
Fl_to_Flx 21964102
Flm_to_FlxV 2772
FlvV_polint_tree 2587767
Flv_Flm_polint 104561
Flv_inv 1744636
Flv_invVandermonde 153445
Flv_inv_i 1756648
Flv_inv_indir 52213
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21224047
Flv_inv_pre_inplace 19489446
Flv_polint 1485357
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745834
Flv_roots_to_pol 842213
Flv_to_Flx 25490785
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325148
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 26000
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81591
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116259
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 300352
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28987
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171863
FlxV_to_Flm_lg 12970303
FlxV_to_FlxX 397987
FlxV_to_ZXV 606013
FlxV_to_ZXV_inplace 3032002
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9842913
Flx_Fl_mul 7319228
Flx_Fl_mul_pre 18069020
Flx_Fl_mul_to_monic 11855261
Flx_Fl_sub 151690
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786138
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169242
Flx_Flxq_eval 791132
Flx_Flxq_eval_pre 2444034
Flx_Frobenius 86619
Flx_Frobenius_pre 13819507
Flx_Laplace 27494
Flx_Newton 54389
Flx_add 66023741
Flx_addmulmul 358990
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 528029
Flx_blocks_Flm 12970074
Flx_composedprod 0
Flx_composedsum 27699
Flx_convol 0
Flx_deflate 421262
Flx_deriv 22987553
Flx_diff1 14447
Flx_digits 0
Flx_div_by_X_x 36621641
Flx_divrem 30200638
Flx_divrem_Barrett 606270
Flx_divrem_Barrettspec 908032
Flx_divrem_basecase 61161004
Flx_divrem_pre 78355888
Flx_double 2299328
Flx_equal 28237546
Flx_eval 20455057
Flx_eval2BILspec 603267
Flx_eval_powers_pre 48619119
Flx_eval_pre 136215681
Flx_extgcd 856954
Flx_extgcd_basecase 6166452
Flx_extgcd_halfgcd 126072
Flx_extgcd_pre 6166451
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109549
Flx_gcd 35035014
Flx_gcd_basecase 85828645
Flx_gcd_pre 87493934
Flx_get_red 14510243
Flx_get_red_pre 98435662
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087440
Flx_halfgcd_all_pre 1087445
Flx_halfgcd_pre 872687
Flx_halfres_basecase 1094515
Flx_halfres_i 1114483
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161783
Flx_integ 0
Flx_integXn 423409
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134384
Flx_invBarrett_pre 158844
Flx_invLaplace 54667
Flx_is_l_pow 8207
Flx_is_smooth 74256
Flx_is_smooth_pre 119120
Flx_is_smooth_squarefree 127371
Flx_is_squarefree 9181462
Flx_lgrenormalizespec 2138089
Flx_matFrobenius 0
Flx_matFrobenius_pre 86558
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907726
Flx_mul 26561097
Flx_mul_pre 379914073
Flx_mulhigh_i 950727
Flx_mullimb 1185574642
Flx_mullimb_ok 3401093472
Flx_mulspec 385510459
Flx_mulspec_Kronecker 7338555
Flx_mulspec_basecase 347812980
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10134
Flx_mulspec_mulii_inflate 294032
Flx_mulspec_quartmulii 97174
Flx_neg 3264701
Flx_neg_inplace 1767867
Flx_negspec 3264696
Flx_normalize 64884556
Flx_powu 0
Flx_powu_pre 4011
Flx_recip 0
Flx_recipspec 7290312
Flx_red 1886912
Flx_rem 42230262
Flx_rem_basecase 802784030
Flx_rem_pre 926799682
Flx_renormalize 2149569526
Flx_rescale 1117
Flx_resultant 4732486
Flx_resultant_basecase_pre 14598994
Flx_resultant_pre 14600833
Flx_shift 27402985
Flx_shiftip 633902680
Flx_splitting 147591
Flx_sqr 354579
Flx_sqr_pre 277569975
Flx_sqrspec 277676356
Flx_sqrspec_Kronecker 677084
Flx_sqrspec_basecase 276847919
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136329678
Flx_subspec 900545
Flx_to_Flv 66655206
Flx_to_FlxX 71405
Flx_to_ZX 38073051
Flx_to_ZX_inplace 36281500
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204568
Flx_translate1 17107
Flx_translate1_basecase 29201
Flx_triple 983881
Flx_unscale 0
Flx_val 4474313
Flx_valrem 28528510
Flxn_div 56640
Flxn_div_pre 56650
Flxn_exp 0
Flxn_expint 109542
Flxn_inv 1037
Flxn_mul 75987
Flxn_mul_pre 5185217
Flxn_mulhigh 527977
Flxn_recip 218152
Flxn_red 6370610
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234855
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113169
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20696
Flxq_autpow_pre 69346
Flxq_autpow_sqr 47109
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779398
Flxq_auttrace_pre 959652
Flxq_auttrace_sqr 652162
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237513
Flxq_div_pre 2312647
Flxq_easylog 519451
Flxq_inv 320040
Flxq_inv_pre 4166361
Flxq_invsafe 670536
Flxq_invsafe_pre 5309510
Flxq_is2npower 0
Flxq_issquare 404459
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113169
Flxq_lroot_pre 24983
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170652
Flxq_minpoly 45867
Flxq_minpoly_pre 809331
Flxq_mul 13191063
Flxq_mul_pre 190661516
Flxq_norm 443041
Flxq_order 97322
Flxq_pow 932762
Flxq_pow_Frobenius 23690909
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24739058
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 231179
Flxq_powers_pre 22443879
Flxq_powu 488156
Flxq_powu_pre 24189166
Flxq_sqr 2762168
Flxq_sqr_pre 276632352
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37665
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4210352
Flxq_transmul_init 1745360
RgXV_to_FlxV 7
RgX_to_Flx 2193208
Rg_to_F2 1710501
Rg_to_Fl 72888641
Rg_to_Flxq 3586973
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3766266
ZXV_to_FlxV 0
ZX_to_Flx 169985025
Z_mod2BIL_Flx 305846
Z_mod2BIL_Flx_2 308776
Z_mod2BIL_Flx_3 0
Z_to_Flx 7576203
ZpX_invLaplace_init 497
_Fl2_mul 1926485
_Fl2_pow 672084
_Fl2_rand 113890
_Fl2_sqr 4917782
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11798576
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 149687679
_Flxq_neg 366572
_Flxq_one 22445987
_Flxq_pow 23683501
_Flxq_powu 68
_Flxq_powu_i 22937394
_Flxq_rand 6577
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268977738
bounded_order 394029
gener_Flxq 7201
get_Fl_threshold 2334651500
get_Flx_red 989703414
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12212
int_to_Flx_half 507058
int_to_Flx_quart 107396
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20947450
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5628428
kron_unpack_Flx_bits_wide 5669484
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8448401
mkF2 7333576
monomial_Flx 940775
random_Flx 2644964
set_Flxq 68922
set_Flxq_pre 70677169
translate_basecase 42366
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6420847

Generated by: LCOV version 1.16