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 30813-28f64e5615) Lines: 2553 2925 87.3 %
Date: 2026-04-14 09:26:12 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449733
Fl2_inv_pre 197252
Fl2_mul_pre 17092088
Fl2_norm_pre 97118610
Fl2_pow_pre 671503
Fl2_sqr_pre 4908542
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76071
Fl_Flxq_log 35570
Fl_Xp1_powu 0
Fl_to_Flx 21933886
Flm_to_FlxV 2772
FlvV_polint_tree 2587805
Flv_Flm_polint 104562
Flv_inv 1744756
Flv_invVandermonde 153445
Flv_inv_i 1756770
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9644
Flv_inv_pre_indir 21083743
Flv_inv_pre_inplace 19359053
Flv_polint 1485473
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745958
Flv_roots_to_pol 842095
Flv_to_Flx 25490935
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 325153
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 292614
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28979
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171856
FlxV_to_Flm_lg 12971316
FlxV_to_FlxX 397987
FlxV_to_ZXV 609482
FlxV_to_ZXV_inplace 3032553
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9845606
Flx_Fl_mul 9422770
Flx_Fl_mul_pre 20197780
Flx_Fl_mul_to_monic 11860080
Flx_Fl_sub 151689
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786266
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169725
Flx_Flxq_eval 791443
Flx_Flxq_eval_pre 2444864
Flx_Frobenius 86618
Flx_Frobenius_pre 13818230
Flx_Laplace 27485
Flx_Newton 54387
Flx_add 73800893
Flx_addmulmul 359024
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527682
Flx_blocks_Flm 12970156
Flx_composedprod 0
Flx_composedsum 27692
Flx_convol 0
Flx_deflate 421314
Flx_deriv 22890590
Flx_diff1 660626
Flx_digits 0
Flx_div_by_X_x 36566044
Flx_divrem 30448647
Flx_divrem_Barrett 604177
Flx_divrem_Barrettspec 905372
Flx_divrem_basecase 61238801
Flx_divrem_pre 78667599
Flx_double 1179459
Flx_equal 26103517
Flx_eval 20397797
Flx_eval2BILspec 603297
Flx_eval_powers_pre 48577106
Flx_eval_pre 136123276
Flx_extgcd 857827
Flx_extgcd_basecase 6184646
Flx_extgcd_halfgcd 126085
Flx_extgcd_pre 6184630
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109545
Flx_gcd 35034456
Flx_gcd_basecase 85798816
Flx_gcd_pre 87459085
Flx_get_red 14506861
Flx_get_red_pre 97000331
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087840
Flx_halfgcd_all_pre 1087840
Flx_halfgcd_pre 873224
Flx_halfres_basecase 1094919
Flx_halfres_i 1114884
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160403
Flx_integ 0
Flx_integXn 423366
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134409
Flx_invBarrett_pre 158870
Flx_invLaplace 54666
Flx_is_l_pow 8156
Flx_is_smooth 74256
Flx_is_smooth_pre 118576
Flx_is_smooth_squarefree 126694
Flx_is_squarefree 9207401
Flx_lgrenormalizespec 2133082
Flx_matFrobenius 0
Flx_matFrobenius_pre 86553
Flx_mod_Xn1 31625
Flx_mod_Xnm1 4908754
Flx_mul 26714427
Flx_mul_pre 380273250
Flx_mulhigh_i 950111
Flx_mullimb 1186571844
Flx_mullimb_ok 3341797166
Flx_mulspec 386009082
Flx_mulspec_Kronecker 7366934
Flx_mulspec_basecase 346386313
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10144
Flx_mulspec_mulii_inflate 294047
Flx_mulspec_quartmulii 97167
Flx_neg 4175229
Flx_neg_inplace 1799550
Flx_negspec 4175230
Flx_normalize 64828261
Flx_powu 0
Flx_powu_pre 3890
Flx_recip 0
Flx_recipspec 7286006
Flx_red 1879993
Flx_rem 42207105
Flx_rem_basecase 797253369
Flx_rem_pre 922739255
Flx_renormalize 2162770323
Flx_rescale 1117
Flx_resultant 4609482
Flx_resultant_basecase_pre 14475049
Flx_resultant_pre 14477184
Flx_shift 27403053
Flx_shiftip 628859246
Flx_splitting 147155
Flx_sqr 370205
Flx_sqr_pre 273676711
Flx_sqrspec 274026007
Flx_sqrspec_Kronecker 670257
Flx_sqrspec_basecase 274126655
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136565147
Flx_subspec 897730
Flx_to_Flv 66648572
Flx_to_FlxX 71405
Flx_to_ZX 38383146
Flx_to_ZX_inplace 36543253
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204550
Flx_translate1 663300
Flx_translate1_basecase 675379
Flx_triple 551294
Flx_unscale 0
Flx_val 4473961
Flx_valrem 28465069
Flxn_div 56608
Flxn_div_pre 56636
Flxn_exp 0
Flxn_expint 109546
Flxn_inv 1037
Flxn_mul 75995
Flxn_mul_pre 5183555
Flxn_mulhigh 527598
Flxn_recip 218048
Flxn_red 6368241
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 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20698
Flxq_autpow_pre 69422
Flxq_autpow_sqr 47254
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112105
Flxq_autsum_pre 98578
Flxq_autsum_sqr 104900
Flxq_auttrace 0
Flxq_auttrace_mul 779510
Flxq_auttrace_pre 960159
Flxq_auttrace_sqr 652279
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313668
Flxq_easylog 519434
Flxq_inv 335788
Flxq_inv_pre 4183746
Flxq_invsafe 670475
Flxq_invsafe_pre 5326812
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170641
Flxq_minpoly 45937
Flxq_minpoly_pre 809734
Flxq_mul 18079964
Flxq_mul_pre 191037484
Flxq_norm 443250
Flxq_order 97322
Flxq_pow 933176
Flxq_pow_Frobenius 22279784
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23328279
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232112
Flxq_powers_pre 22441187
Flxq_powu 488361
Flxq_powu_pre 24182941
Flxq_sqr 2763475
Flxq_sqr_pre 272718324
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37667
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212416
Flxq_transmul_init 1746405
RgXV_to_FlxV 7
RgX_to_Flx 2209612
Rg_to_F2 1715084
Rg_to_Fl 73085361
Rg_to_Flxq 3461469
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797538
ZXV_to_FlxV 0
ZX_to_Flx 171046411
Z_mod2BIL_Flx 305861
Z_mod2BIL_Flx_2 308791
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593873
ZpX_invLaplace_init 497
_Fl2_mul 1923721
_Fl2_pow 671495
_Fl2_rand 113814
_Fl2_sqr 4908596
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11779862
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146613233
_Flxq_neg 366572
_Flxq_one 22440629
_Flxq_pow 22272371
_Flxq_powu 68
_Flxq_powu_i 22930257
_Flxq_rand 6575
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 266527493
bounded_order 394028
gener_Flxq 7201
get_Fl_threshold 2314811670
get_Flx_red 985699256
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12216
int_to_Flx_half 507058
int_to_Flx_quart 107385
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20996652
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 5621971
kron_unpack_Flx_bits_wide 5696687
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8471082
mkF2 27664084
monomial_Flx 941366
random_Flx 2646193
set_Flxq 68922
set_Flxq_pre 69249182
translate_basecase 688546
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6407432

Generated by: LCOV version 1.16