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 30772-246cd0a587) Lines: 2553 2925 87.3 %
Date: 2026-03-29 09:27:34 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449475
Fl2_inv_pre 197210
Fl2_mul_pre 17090025
Fl2_norm_pre 97118555
Fl2_pow_pre 671171
Fl2_sqr_pre 4902588
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76015
Fl_Flxq_log 35571
Fl_Xp1_powu 0
Fl_to_Flx 21949704
Flm_to_FlxV 2772
FlvV_polint_tree 2587656
Flv_Flm_polint 104557
Flv_inv 1744747
Flv_invVandermonde 153445
Flv_inv_i 1756756
Flv_inv_indir 52205
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21031517
Flv_inv_pre_inplace 19290188
Flv_polint 1485471
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745959
Flv_roots_to_pol 842001
Flv_to_Flx 25491278
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 325159
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 293111
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28980
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171871
FlxV_to_Flm_lg 12971030
FlxV_to_FlxX 397987
FlxV_to_ZXV 609502
FlxV_to_ZXV_inplace 3032555
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9844073
Flx_Fl_mul 9424327
Flx_Fl_mul_pre 20200361
Flx_Fl_mul_to_monic 11859383
Flx_Fl_sub 151693
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786252
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13170223
Flx_Flxq_eval 791486
Flx_Flxq_eval_pre 2444842
Flx_Frobenius 86619
Flx_Frobenius_pre 13819226
Flx_Laplace 27490
Flx_Newton 54371
Flx_add 73792896
Flx_addmulmul 358989
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 528009
Flx_blocks_Flm 12970653
Flx_composedprod 0
Flx_composedsum 27691
Flx_convol 0
Flx_deflate 421321
Flx_deriv 23016301
Flx_diff1 660441
Flx_digits 0
Flx_div_by_X_x 36556394
Flx_divrem 30452115
Flx_divrem_Barrett 604301
Flx_divrem_Barrettspec 906081
Flx_divrem_basecase 61244642
Flx_divrem_pre 78687368
Flx_double 1179459
Flx_equal 26069922
Flx_eval 20422724
Flx_eval2BILspec 603317
Flx_eval_powers_pre 48606087
Flx_eval_pre 136169980
Flx_extgcd 857092
Flx_extgcd_basecase 6183914
Flx_extgcd_halfgcd 126073
Flx_extgcd_pre 6183902
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109537
Flx_gcd 35026326
Flx_gcd_basecase 85810398
Flx_gcd_pre 87477723
Flx_get_red 14509678
Flx_get_red_pre 97041614
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087738
Flx_halfgcd_all_pre 1087743
Flx_halfgcd_pre 873187
Flx_halfres_basecase 1094816
Flx_halfres_i 1114781
Flx_halfres_pre 1044
Flx_halfres_split 19963
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 161245
Flx_integ 0
Flx_integXn 423396
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134387
Flx_invBarrett_pre 158847
Flx_invLaplace 54644
Flx_is_l_pow 8202
Flx_is_smooth 74256
Flx_is_smooth_pre 119147
Flx_is_smooth_squarefree 127388
Flx_is_squarefree 9200889
Flx_lgrenormalizespec 2134008
Flx_matFrobenius 0
Flx_matFrobenius_pre 86560
Flx_mod_Xn1 31529
Flx_mod_Xnm1 4907414
Flx_mul 26709154
Flx_mul_pre 380559915
Flx_mulhigh_i 950648
Flx_mullimb 1186949555
Flx_mullimb_ok 3344966275
Flx_mulspec 386165660
Flx_mulspec_Kronecker 7367558
Flx_mulspec_basecase 346175993
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10146
Flx_mulspec_mulii_inflate 294057
Flx_mulspec_quartmulii 97174
Flx_neg 4175195
Flx_neg_inplace 1799550
Flx_negspec 4175249
Flx_normalize 64809085
Flx_powu 0
Flx_powu_pre 3900
Flx_recip 0
Flx_recipspec 7288715
Flx_red 1880416
Flx_rem 42222549
Flx_rem_basecase 798313275
Flx_rem_pre 924332119
Flx_renormalize 2163837383
Flx_rescale 1117
Flx_resultant 4740291
Flx_resultant_basecase_pre 14606307
Flx_resultant_pre 14608422
Flx_shift 27408178
Flx_shiftip 629423386
Flx_splitting 147208
Flx_sqr 370227
Flx_sqr_pre 274699044
Flx_sqrspec 274841497
Flx_sqrspec_Kronecker 670249
Flx_sqrspec_basecase 274092045
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136574184
Flx_subspec 898320
Flx_to_Flv 66651798
Flx_to_FlxX 71405
Flx_to_ZX 38378011
Flx_to_ZX_inplace 36545398
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204568
Flx_translate1 663111
Flx_translate1_basecase 675177
Flx_triple 551294
Flx_unscale 0
Flx_val 4475547
Flx_valrem 28450695
Flxn_div 56627
Flxn_div_pre 56645
Flxn_exp 0
Flxn_expint 109538
Flxn_inv 1037
Flxn_mul 75985
Flxn_mul_pre 5187000
Flxn_mulhigh 527942
Flxn_recip 218117
Flxn_red 6372541
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 20697
Flxq_autpow_pre 69414
Flxq_autpow_sqr 47244
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112092
Flxq_autsum_pre 98573
Flxq_autsum_sqr 104889
Flxq_auttrace 0
Flxq_auttrace_mul 779485
Flxq_auttrace_pre 960122
Flxq_auttrace_sqr 652255
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519453
Flxq_inv 335784
Flxq_inv_pre 4183797
Flxq_invsafe 670436
Flxq_invsafe_pre 5326829
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 170651
Flxq_minpoly 45937
Flxq_minpoly_pre 809714
Flxq_mul 18079997
Flxq_mul_pre 191260472
Flxq_norm 443251
Flxq_order 97322
Flxq_pow 932906
Flxq_pow_Frobenius 22306605
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23354889
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232135
Flxq_powers_pre 22445508
Flxq_powu 488365
Flxq_powu_pre 24186410
Flxq_sqr 2763473
Flxq_sqr_pre 273673998
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 4212291
Flxq_transmul_init 1746339
RgXV_to_FlxV 7
RgX_to_Flx 2209615
Rg_to_F2 1715095
Rg_to_Fl 73087101
Rg_to_Flxq 3461480
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797656
ZXV_to_FlxV 0
ZX_to_Flx 171054386
Z_mod2BIL_Flx 305871
Z_mod2BIL_Flx_2 308801
Z_mod2BIL_Flx_3 0
Z_to_Flx 7594041
ZpX_invLaplace_init 497
_Fl2_mul 1921645
_Fl2_pow 671151
_Fl2_rand 113704
_Fl2_sqr 4902605
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11776304
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 146806513
_Flxq_neg 366572
_Flxq_one 22445980
_Flxq_pow 22299196
_Flxq_powu 68
_Flxq_powu_i 22933672
_Flxq_rand 6563
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267372196
bounded_order 394010
gener_Flxq 7201
get_Fl_threshold 2318317756
get_Flx_red 987412603
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 107397
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20998709
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 5622476
kron_unpack_Flx_bits_wide 5698446
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8472109
mkF2 27657027
monomial_Flx 941279
random_Flx 2646131
set_Flxq 68922
set_Flxq_pre 69290582
translate_basecase 688359
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6400440

Generated by: LCOV version 1.16