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 30724-b49b12e983) Lines: 2553 2925 87.3 %
Date: 2026-03-02 09:24:58 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449791
Fl2_inv_pre 197242
Fl2_mul_pre 1953666
Fl2_norm_pre 127567
Fl2_pow_pre 671506
Fl2_sqr_pre 4913567
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76055
Fl_Flxq_log 35544
Fl_Xp1_powu 0
Fl_to_Flx 21959072
Flm_to_FlxV 2772
FlvV_polint_tree 2587647
Flv_Flm_polint 104560
Flv_inv 1744466
Flv_invVandermonde 153445
Flv_inv_i 1756480
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 21100257
Flv_inv_pre_inplace 19369107
Flv_polint 1485183
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745663
Flv_roots_to_pol 842226
Flv_to_Flx 25486532
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 325160
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 296153
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 171863
FlxV_to_Flm_lg 12967299
FlxV_to_FlxX 397987
FlxV_to_ZXV 605900
FlxV_to_ZXV_inplace 3031590
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9843910
Flx_Fl_mul 7316954
Flx_Fl_mul_pre 18064020
Flx_Fl_mul_to_monic 11853024
Flx_Fl_sub 151684
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785968
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13166209
Flx_Flxq_eval 790983
Flx_Flxq_eval_pre 2444030
Flx_Frobenius 86619
Flx_Frobenius_pre 13813140
Flx_Laplace 27348
Flx_Newton 54109
Flx_add 66002615
Flx_addmulmul 358993
Flx_addshift 3704565
Flx_addspec 7210542
Flx_blocks 526274
Flx_blocks_Flm 12967176
Flx_composedprod 0
Flx_composedsum 27554
Flx_convol 0
Flx_deflate 420790
Flx_deriv 22981151
Flx_diff1 14446
Flx_digits 0
Flx_div_by_X_x 36589374
Flx_divrem 30190265
Flx_divrem_Barrett 605134
Flx_divrem_Barrettspec 906520
Flx_divrem_basecase 61142311
Flx_divrem_pre 78328370
Flx_double 2299328
Flx_equal 27361236
Flx_eval 20424533
Flx_eval2BILspec 603291
Flx_eval_powers_pre 48549436
Flx_eval_pre 136153626
Flx_extgcd 856648
Flx_extgcd_basecase 6165968
Flx_extgcd_halfgcd 126073
Flx_extgcd_pre 6165973
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109397
Flx_gcd 35023805
Flx_gcd_basecase 85790688
Flx_gcd_pre 87448034
Flx_get_red 14504214
Flx_get_red_pre 97534886
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087468
Flx_halfgcd_all_pre 1087470
Flx_halfgcd_pre 873087
Flx_halfres_basecase 1094544
Flx_halfres_i 1114512
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160491
Flx_integ 0
Flx_integXn 422795
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134390
Flx_invBarrett_pre 158850
Flx_invLaplace 54385
Flx_is_l_pow 8191
Flx_is_smooth 74256
Flx_is_smooth_pre 118266
Flx_is_smooth_squarefree 126446
Flx_is_squarefree 9180906
Flx_lgrenormalizespec 2135191
Flx_matFrobenius 0
Flx_matFrobenius_pre 86565
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4907510
Flx_mul 26549372
Flx_mul_pre 377855743
Flx_mulhigh_i 948183
Flx_mullimb 1188087984
Flx_mullimb_ok 3360910395
Flx_mulspec 383414217
Flx_mulspec_Kronecker 7335188
Flx_mulspec_basecase 345930160
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10144
Flx_mulspec_mulii_inflate 294044
Flx_mulspec_quartmulii 97165
Flx_neg 3263421
Flx_neg_inplace 1767761
Flx_negspec 3263412
Flx_normalize 64846300
Flx_powu 0
Flx_powu_pre 3948
Flx_recip 0
Flx_recipspec 7288525
Flx_red 1881780
Flx_rem 42216907
Flx_rem_basecase 799740193
Flx_rem_pre 923666847
Flx_renormalize 2143792082
Flx_rescale 1117
Flx_resultant 4731753
Flx_resultant_basecase_pre 14597185
Flx_resultant_pre 14599051
Flx_shift 27397211
Flx_shiftip 631128013
Flx_splitting 147132
Flx_sqr 354487
Flx_sqr_pre 276025496
Flx_sqrspec 276278655
Flx_sqrspec_Kronecker 676938
Flx_sqrspec_basecase 276307136
Flx_sqrspec_halfsqri 135
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136291461
Flx_subspec 898866
Flx_to_Flv 66645335
Flx_to_FlxX 71405
Flx_to_ZX 38061777
Flx_to_ZX_inplace 36264558
Flx_to_int_halfspec 468589
Flx_to_int_quartspec 204548
Flx_translate1 17106
Flx_translate1_basecase 29201
Flx_triple 983881
Flx_unscale 0
Flx_val 4466371
Flx_valrem 28509851
Flxn_div 56341
Flxn_div_pre 56358
Flxn_exp 0
Flxn_expint 109408
Flxn_inv 1037
Flxn_mul 75848
Flxn_mul_pre 5179140
Flxn_mulhigh 526218
Flxn_recip 217426
Flxn_red 6361235
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 20699
Flxq_autpow_pre 69348
Flxq_autpow_sqr 47110
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112106
Flxq_autsum_pre 98577
Flxq_autsum_sqr 104899
Flxq_auttrace 0
Flxq_auttrace_mul 780111
Flxq_auttrace_pre 959920
Flxq_auttrace_sqr 652791
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237513
Flxq_div_pre 2312647
Flxq_easylog 519332
Flxq_inv 320037
Flxq_inv_pre 4166242
Flxq_invsafe 670505
Flxq_invsafe_pre 5309337
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 170659
Flxq_minpoly 45867
Flxq_minpoly_pre 809608
Flxq_mul 13190908
Flxq_mul_pre 188736766
Flxq_norm 443049
Flxq_order 97322
Flxq_pow 932614
Flxq_pow_Frobenius 22818197
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 23866215
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 231074
Flxq_powers_pre 22436302
Flxq_powu 488119
Flxq_powu_pre 24177268
Flxq_sqr 2762178
Flxq_sqr_pre 275083333
Flxq_sqrt 230527
Flxq_sqrt_pre 230527
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4696
Flxq_transmul 4212213
Flxq_transmul_init 1746157
RgXV_to_FlxV 7
RgX_to_Flx 2193518
Rg_to_F2 1710412
Rg_to_Fl 72888412
Rg_to_Flxq 3587086
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3764597
ZXV_to_FlxV 0
ZX_to_Flx 169950844
Z_mod2BIL_Flx 305858
Z_mod2BIL_Flx_2 308788
Z_mod2BIL_Flx_3 0
Z_to_Flx 7575607
ZpX_invLaplace_init 497
_Fl2_mul 1924633
_Fl2_pow 671500
_Fl2_rand 113869
_Fl2_sqr 4913563
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11795878
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 147787463
_Flxq_neg 366572
_Flxq_one 22437395
_Flxq_pow 22810784
_Flxq_powu 68
_Flxq_powu_i 22923035
_Flxq_rand 6577
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267440797
bounded_order 394003
gener_Flxq 7201
get_Fl_threshold 2323339581
get_Flx_red 986549376
get_Flxq_field 68902
get_Flxq_star 283433
init_invlaplace 12514
int_to_Flx 12217
int_to_Flx_half 507057
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 20939658
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 5625138
kron_unpack_Flx_bits_wide 5667973
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8445534
mkF2 7326941
monomial_Flx 941166
random_Flx 2645653
set_Flxq 68922
set_Flxq_pre 69781855
translate_basecase 42365
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6401538

Generated by: LCOV version 1.16