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 30766-abc2a9856c) Lines: 2558 2925 87.5 %
Date: 2026-03-27 09:27:04 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450053
Fl2_inv_pre 197479
Fl2_mul_pre 17093218
Fl2_norm_pre 97118583
Fl2_pow_pre 671957
Fl2_sqr_pre 4913438
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76090
Fl_Flxq_log 35577
Fl_Xp1_powu 0
Fl_to_Flx 21969381
Flm_to_FlxV 2772
FlvV_polint_tree 2587760
Flv_Flm_polint 104551
Flv_inv 1744715
Flv_invVandermonde 153445
Flv_inv_i 1756724
Flv_inv_indir 52210
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21172204
Flv_inv_pre_inplace 19435039
Flv_polint 1485440
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745921
Flv_roots_to_pol 842124
Flv_to_Flx 25492860
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 25999
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 290057
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28967
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171867
FlxV_to_Flm_lg 12972008
FlxV_to_FlxX 397987
FlxV_to_ZXV 609494
FlxV_to_ZXV_inplace 3032516
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9846048
Flx_Fl_mul 7326646
Flx_Fl_mul_pre 18099636
Flx_Fl_mul_to_monic 11860506
Flx_Fl_sub 151692
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786218
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170896
Flx_Flxq_eval 791487
Flx_Flxq_eval_pre 2444930
Flx_Frobenius 86618
Flx_Frobenius_pre 13819451
Flx_Laplace 27498
Flx_Newton 54392
Flx_add 66016879
Flx_addmulmul 358989
Flx_addshift 3704783
Flx_addspec 7210978
Flx_blocks 527839
Flx_blocks_Flm 12971508
Flx_composedprod 0
Flx_composedsum 27698
Flx_convol 0
Flx_deflate 421321
Flx_deriv 23016522
Flx_diff1 660672
Flx_digits 0
Flx_div_by_X_x 36606983
Flx_divrem 30451363
Flx_divrem_Barrett 603451
Flx_divrem_Barrettspec 904944
Flx_divrem_basecase 61240773
Flx_divrem_pre 78686199
Flx_double 2299328
Flx_equal 28833319
Flx_eval 20457301
Flx_eval2BILspec 603319
Flx_eval_powers_pre 48641448
Flx_eval_pre 136212272
Flx_extgcd 857099
Flx_extgcd_basecase 6182934
Flx_extgcd_halfgcd 126072
Flx_extgcd_pre 6182934
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109543
Flx_gcd 35049081
Flx_gcd_basecase 85853650
Flx_gcd_pre 87511347
Flx_get_red 14510712
Flx_get_red_pre 99034291
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087734
Flx_halfgcd_all_pre 1087736
Flx_halfgcd_pre 873248
Flx_halfres_basecase 1094813
Flx_halfres_i 1114777
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 159854
Flx_integ 0
Flx_integXn 423371
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134386
Flx_invBarrett_pre 158849
Flx_invLaplace 54666
Flx_is_l_pow 8179
Flx_is_smooth 74256
Flx_is_smooth_pre 118439
Flx_is_smooth_squarefree 126657
Flx_is_squarefree 9200671
Flx_lgrenormalizespec 2132069
Flx_matFrobenius 0
Flx_matFrobenius_pre 86559
Flx_mod_Xn1 31527
Flx_mod_Xnm1 4907610
Flx_mul 26707403
Flx_mul_pre 381341828
Flx_mulhigh_i 950396
Flx_mullimb 1192674403
Flx_mullimb_ok 3407420386
Flx_mulspec 386913650
Flx_mulspec_Kronecker 7329462
Flx_mulspec_basecase 349287802
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10140
Flx_mulspec_mulii_inflate 294058
Flx_mulspec_quartmulii 97165
Flx_neg 3263427
Flx_neg_inplace 1767867
Flx_negspec 3263411
Flx_normalize 64889532
Flx_powu 0
Flx_powu_pre 3852
Flx_recip 0
Flx_recipspec 7287147
Flx_red 1877743
Flx_rem 42233468
Flx_rem_basecase 805125505
Flx_rem_pre 929225293
Flx_renormalize 2156835018
Flx_rescale 1117
Flx_resultant 4740174
Flx_resultant_basecase_pre 14605645
Flx_resultant_pre 14607832
Flx_shift 27407018
Flx_shiftip 636196006
Flx_splitting 146866
Flx_sqr 370161
Flx_sqr_pre 278301059
Flx_sqrspec 278418863
Flx_sqrspec_Kronecker 676847
Flx_sqrspec_basecase 277608415
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2068
Flx_sqrspec_sqri_inflate 11814
Flx_sub 137108231
Flx_subspec 897313
Flx_to_Flv 66658709
Flx_to_FlxX 71405
Flx_to_ZX 38313789
Flx_to_ZX_inplace 36548809
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204548
Flx_translate1 663331
Flx_translate1_basecase 675418
Flx_triple 984021
Flx_unscale 0
Flx_val 4477580
Flx_valrem 28531571
Flxn_div 56630
Flxn_div_pre 56633
Flxn_exp 0
Flxn_expint 109541
Flxn_inv 1037
Flxn_mul 75986
Flxn_mul_pre 5185140
Flxn_mulhigh 527804
Flxn_recip 218136
Flxn_red 6369934
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 20696
Flxq_autpow_pre 69413
Flxq_autpow_sqr 47243
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112087
Flxq_autsum_pre 98572
Flxq_autsum_sqr 104886
Flxq_auttrace 0
Flxq_auttrace_mul 779468
Flxq_auttrace_pre 960156
Flxq_auttrace_sqr 652254
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237947
Flxq_div_pre 2313081
Flxq_easylog 519438
Flxq_inv 335762
Flxq_inv_pre 4182762
Flxq_invsafe 670490
Flxq_invsafe_pre 5325848
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 170648
Flxq_minpoly 45937
Flxq_minpoly_pre 809766
Flxq_mul 13194230
Flxq_mul_pre 191887339
Flxq_norm 443256
Flxq_order 97322
Flxq_pow 932914
Flxq_pow_Frobenius 24281717
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 25329982
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232125
Flxq_powers_pre 22447442
Flxq_powu 488366
Flxq_powu_pre 24187232
Flxq_sqr 2763419
Flxq_sqr_pre 277280068
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37665
Flxq_sqrtn 23093
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212551
Flxq_transmul_init 1746464
RgXV_to_FlxV 7
RgX_to_Flx 2208849
Rg_to_F2 1715029
Rg_to_Fl 73080162
Rg_to_Flxq 3589442
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3796919
ZXV_to_FlxV 0
ZX_to_Flx 171075869
Z_mod2BIL_Flx 305872
Z_mod2BIL_Flx_2 308802
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593625
ZpX_invLaplace_init 497
_Fl2_mul 1924819
_Fl2_pow 671945
_Fl2_rand 113822
_Fl2_sqr 4913201
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11794031
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 150908993
_Flxq_neg 366572
_Flxq_one 22449386
_Flxq_pow 24274308
_Flxq_powu 68
_Flxq_powu_i 22934328
_Flxq_rand 6588
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 269706028
bounded_order 394034
gener_Flxq 7201
get_Fl_threshold 2341966854
get_Flx_red 992185826
get_Flxq_field 68902
get_Flxq_star 283431
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 20930070
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 5619778
kron_unpack_Flx_bits_wide 5669289
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8440032
mkF2 27670727
monomial_Flx 941342
random_Flx 2646299
set_Flxq 68922
set_Flxq_pre 71269498
translate_basecase 688588
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6413457

Generated by: LCOV version 1.16