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 30773-2078653b96) Lines: 2553 2925 87.3 %
Date: 2026-03-31 09:27:24 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 449309
Fl2_inv_pre 197086
Fl2_mul_pre 17090573
Fl2_norm_pre 97118557
Fl2_pow_pre 670909
Fl2_sqr_pre 4905445
Fl2_sqrt_pre 65848
Fl2_sqrtn_pre 76013
Fl_Flxq_log 35565
Fl_Xp1_powu 0
Fl_to_Flx 21945514
Flm_to_FlxV 2772
FlvV_polint_tree 2587692
Flv_Flm_polint 104561
Flv_inv 1744752
Flv_invVandermonde 153445
Flv_inv_i 1756763
Flv_inv_indir 52214
Flv_inv_inplace 12017
Flv_inv_pre 9645
Flv_inv_pre_indir 20996862
Flv_inv_pre_inplace 19257156
Flv_polint 1485461
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745944
Flv_roots_to_pol 842117
Flv_to_Flx 25491006
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 294643
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28983
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171863
FlxV_to_Flm_lg 12971049
FlxV_to_FlxX 397987
FlxV_to_ZXV 609491
FlxV_to_ZXV_inplace 3032510
Flx_Fl2_eval_pre 5214706
Flx_Fl_add 9843551
Flx_Fl_mul 9423257
Flx_Fl_mul_pre 20197532
Flx_Fl_mul_to_monic 11858697
Flx_Fl_sub 151684
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1786257
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13169928
Flx_Flxq_eval 791457
Flx_Flxq_eval_pre 2444842
Flx_Frobenius 86618
Flx_Frobenius_pre 13818317
Flx_Laplace 27467
Flx_Newton 54387
Flx_add 73793376
Flx_addmulmul 358983
Flx_addshift 3768149
Flx_addspec 7337710
Flx_blocks 527417
Flx_blocks_Flm 12970415
Flx_composedprod 0
Flx_composedsum 27695
Flx_convol 0
Flx_deflate 421312
Flx_deriv 23015275
Flx_diff1 660617
Flx_digits 0
Flx_div_by_X_x 36559691
Flx_divrem 30452486
Flx_divrem_Barrett 604710
Flx_divrem_Barrettspec 906289
Flx_divrem_basecase 61236729
Flx_divrem_pre 78679347
Flx_double 1179459
Flx_equal 26870190
Flx_eval 20409209
Flx_eval2BILspec 603303
Flx_eval_powers_pre 48431192
Flx_eval_pre 136168074
Flx_extgcd 857094
Flx_extgcd_basecase 6183934
Flx_extgcd_halfgcd 126067
Flx_extgcd_pre 6183936
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109542
Flx_gcd 35028161
Flx_gcd_basecase 85804339
Flx_gcd_pre 87468046
Flx_get_red 14508453
Flx_get_red_pre 97785836
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1087577
Flx_halfgcd_all_pre 1087584
Flx_halfgcd_pre 873133
Flx_halfres_basecase 1094654
Flx_halfres_i 1114621
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160393
Flx_integ 0
Flx_integXn 423253
Flx_invBarrett 0
Flx_invBarrett_Newton 23161
Flx_invBarrett_basecase 134386
Flx_invBarrett_pre 158846
Flx_invLaplace 54632
Flx_is_l_pow 8164
Flx_is_smooth 74256
Flx_is_smooth_pre 118329
Flx_is_smooth_squarefree 126487
Flx_is_squarefree 9200916
Flx_lgrenormalizespec 2134439
Flx_matFrobenius 0
Flx_matFrobenius_pre 86552
Flx_mod_Xn1 31530
Flx_mod_Xnm1 4907373
Flx_mul 26708628
Flx_mul_pre 381998289
Flx_mulhigh_i 949476
Flx_mullimb 1185657810
Flx_mullimb_ok 3370058759
Flx_mulspec 387611747
Flx_mulspec_Kronecker 7368398
Flx_mulspec_basecase 347659135
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10144
Flx_mulspec_mulii_inflate 294050
Flx_mulspec_quartmulii 97166
Flx_neg 4175612
Flx_neg_inplace 1799550
Flx_negspec 4175616
Flx_normalize 64791161
Flx_powu 0
Flx_powu_pre 3924
Flx_recip 0
Flx_recipspec 7288693
Flx_red 1881755
Flx_rem 42219626
Flx_rem_basecase 800070813
Flx_rem_pre 926122146
Flx_renormalize 2168020116
Flx_rescale 1117
Flx_resultant 4740201
Flx_resultant_basecase_pre 14606938
Flx_resultant_pre 14608850
Flx_shift 27401982
Flx_shiftip 631406135
Flx_splitting 147384
Flx_sqr 370260
Flx_sqr_pre 275207866
Flx_sqrspec 275367844
Flx_sqrspec_Kronecker 670303
Flx_sqrspec_basecase 274689034
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2069
Flx_sqrspec_sqri_inflate 11814
Flx_sub 136564609
Flx_subspec 898626
Flx_to_Flv 66649469
Flx_to_FlxX 71405
Flx_to_ZX 38377352
Flx_to_ZX_inplace 36545826
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204549
Flx_translate1 663283
Flx_translate1_basecase 675380
Flx_triple 551294
Flx_unscale 0
Flx_val 4456888
Flx_valrem 28456315
Flxn_div 56571
Flxn_div_pre 56613
Flxn_exp 0
Flxn_expint 109528
Flxn_inv 1037
Flxn_mul 75974
Flxn_mul_pre 5182494
Flxn_mulhigh 527327
Flxn_recip 217966
Flxn_red 6365162
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 69415
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 779483
Flxq_auttrace_pre 960185
Flxq_auttrace_sqr 652247
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 1167600
Flxq_div_pre 2313669
Flxq_easylog 519415
Flxq_inv 335789
Flxq_inv_pre 4183744
Flxq_invsafe 670514
Flxq_invsafe_pre 5326852
Flxq_is2npower 0
Flxq_issquare 404606
Flxq_log 164209
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170637
Flxq_minpoly 45937
Flxq_minpoly_pre 809727
Flxq_mul 18080013
Flxq_mul_pre 192695465
Flxq_norm 443257
Flxq_order 97322
Flxq_pow 932864
Flxq_pow_Frobenius 23057123
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24105379
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232122
Flxq_powers_pre 22443391
Flxq_powu 488353
Flxq_powu_pre 24179943
Flxq_sqr 2763480
Flxq_sqr_pre 274165005
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23095
Flxq_sqrtn_spec_pre 21901
Flxq_sumautsum_msqr 40869
Flxq_sumautsum_pre 210695
Flxq_sumautsum_sqr 295218
Flxq_trace 4724
Flxq_transmul 4212282
Flxq_transmul_init 1746245
RgXV_to_FlxV 7
RgX_to_Flx 2209609
Rg_to_F2 1715127
Rg_to_Fl 73087262
Rg_to_Flxq 3461467
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58170
ZXT_to_FlxT 3797974
ZXV_to_FlxV 0
ZX_to_Flx 171053072
Z_mod2BIL_Flx 305864
Z_mod2BIL_Flx_2 308794
Z_mod2BIL_Flx_3 0
Z_to_Flx 7593965
ZpX_invLaplace_init 497
_Fl2_mul 1922204
_Fl2_pow 670904
_Fl2_rand 113698
_Fl2_sqr 4905459
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11775269
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148231069
_Flxq_neg 366572
_Flxq_one 22442688
_Flxq_pow 23049714
_Flxq_powu 68
_Flxq_powu_i 22926268
_Flxq_rand 6571
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 267816743
bounded_order 394019
gener_Flxq 7201
get_Fl_threshold 2324429638
get_Flx_red 989125599
get_Flxq_field 68902
get_Flxq_star 283432
init_invlaplace 12514
int_to_Flx 12215
int_to_Flx_half 507058
int_to_Flx_quart 107384
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 21000444
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 5623743
kron_unpack_Flx_bits_wide 5698564
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8473523
mkF2 27660614
monomial_Flx 941228
random_Flx 2646171
set_Flxq 68922
set_Flxq_pre 70028332
translate_basecase 688545
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6387980

Generated by: LCOV version 1.16