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 30831-19b50a36d0) Lines: 2553 2925 87.3 %
Date: 2026-04-21 09:26:02 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2067
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3947
Flxq_pow_table_pre 4393
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6544
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8201
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10140
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12214
init_invlaplace 12514
Flx_halve 14026
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23092
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 25999
Flx_Laplace 27478
Flx_composedsum 27693
FlxV_composedsum 28986
Flx_mod_Xn1 31626
FlxV_Flc_mul 34482
Fl_Flxq_log 35582
Flxq_sqrtl_spec_pre 37666
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47243
Flv_inv_indir 52214
kron_pack_Flx_spec 53168
Flx_Newton 54384
Flx_invLaplace 54652
Flxn_div 56588
Flxn_div_pre 56620
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69413
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75987
Fl2_sqrtn_pre 76046
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86553
Flx_Frobenius 86614
Flx_mulspec_quartmulii 97164
Flxq_order 97322
Flxq_autsum_pre 98572
FlxC_to_ZXC 104060
Flv_Flm_polint 104560
Flxq_autsum_sqr 104886
int_to_Flx_quart 107385
Flx_fromNewton 109541
Flxn_expint 109544
Flxq_autsum_mul 112087
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113842
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118757
Flx_extgcd_halfgcd 126090
Flx_is_smooth_squarefree 126916
Flx_invBarrett_basecase 134412
Flx_splitting 147555
Flx_Fl_sub 151690
Flv_invVandermonde 153445
Flx_invBarrett_pre 158872
Flx_inflate 160553
Flxq_log 164209
Flxq_matrix_pow_pre 170645
FlxV_to_Flm 171854
Fl2_inv_pre 197135
Flx_to_int_quartspec 204548
Flxq_sumautsum_pre 210695
Flxn_recip 218021
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232126
FlxqC_red_pre 234855
get_Flxq_star 283431
Flx_mulspec_mulii_inflate 294055
Flxq_sumautsum_sqr 295218
FlxT_red 296165
Z_mod2BIL_Flx 305869
Z_mod2BIL_Flx_2 308799
FlxC_eval_powers_pre 325159
Flxq_inv 335790
Flx_addmulmul 359019
_Flxq_neg 366572
Flx_sqr 370286
_Flxq_add 389834
bounded_order 393993
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421318
Flx_integXn 423315
Flxq_norm 443253
Fl2_equal1 449386
Flx_to_int_halfspec 468590
Flxq_powu 488361
int_to_Flx_half 507058
Flxq_easylog 519424
Flxn_mulhigh 527418
Flx_blocks 527531
Flx_triple 551294
Flx_eval2BILspec 603313
Flx_divrem_Barrett 605149
FlxV_to_ZXV 609496
Flxq_auttrace_sqr 652281
Flx_diff1 660635
Flx_translate1 663294
Flxq_invsafe 670139
Flx_sqrspec_Kronecker 670273
_Fl2_pow 670996
Fl2_pow_pre 671013
Flx_translate1_basecase 675382
kron_pack_Flx_spec_half 688104
translate_basecase 688553
Flxq_auttrace_mul 779512
Flx_Flxq_eval 791484
Flxq_minpoly_pre 809692
Flv_roots_to_pol 842077
Flx_extgcd 857844
Flx_halfgcd_pre 873169
Flx_subspec 898846
Flx_divrem_Barrettspec 906367
Flxq_pow 933190
monomial_Flx 941306
Flx_mulhigh_i 949803
Flxq_auttrace_pre 960112
Flx_halfgcd_all_i 1088005
Flx_halfgcd_all_pre 1088008
Flx_halfres_basecase 1095085
Flx_halfres_i 1115052
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485497
_Flxq_red 1550928
Rg_to_F2 1715161
Flv_inv 1744765
Flv_producttree 1745986
Flxq_transmul_init 1746322
Flv_inv_i 1756764
Flx_Flv_multieval_tree 1786292
Flx_neg_inplace 1799550
Flx_red 1883158
_Fl2_mul 1923143
Flx_lgrenormalizespec 2135103
RgX_to_Flx 2209619
Flxq_div_pre 2313668
Flx_Flxq_eval_pre 2444903
FlvV_polint_tree 2587869
random_Flx 2646104
Flxq_sqr 2763468
FlxV_to_ZXV_inplace 3032595
Rg_to_Flxq 3461474
Flx_addshift 3768149
ZXT_to_FlxT 3798519
Flx_neg 4176020
Flx_negspec 4176027
Flxq_inv_pre 4183740
Flxq_transmul 4212211
Flx_val 4466331
Flx_resultant 4609688
Fl2_sqr_pre 4906953
_Fl2_sqr 4906997
Flx_mod_Xnm1 4908779
Flxn_mul_pre 5183027
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5326471
kron_unpack_Flx_bits_narrow 5625009
kron_unpack_Flx_bits_wide 5696799
Flx_extgcd_pre 6184274
Flx_extgcd_basecase 6184350
Flxn_red 6366884
zx_to_Flx 6397329
Flx_recipspec 7288756
Flx_addspec 7337710
Flx_mulspec_Kronecker 7369027
Z_to_Flx 7593976
maxbitcoeffpol 8474020
Flx_is_squarefree 9207236
Flx_Fl_mul 9423945
Flx_Fl_add 9847572
_Flx_mul 11781120
Flx_Fl_mul_to_monic 11861061
Flx_blocks_Flm 12970118
FlxV_to_Flm_lg 12971302
Flx_FlxqV_eval_pre 13169694
Flx_Frobenius_pre 13817690
Flx_resultant_basecase_pre 14475135
Flx_resultant_pre 14477481
Flx_get_red 14505976
Fl2_mul_pre 17091503
Flxq_mul 18079999
Flv_inv_pre_inplace 19314533
Flx_Fl_mul_pre 20198714
Flx_eval 20413352
kron_pack_Flx_spec_bits 21001843
Flv_inv_pre_indir 21044014
Fl_to_Flx 21927431
_Flxq_one 22437051
Flxq_powers_pre 22439326
Flx_deriv 22890697
_Flxq_powu_i 22930640
_Flxq_pow 23760589
Flxq_pow_Frobenius 23767996
Flxq_powu_pre 24183234
Flxq_pow_pre 24816570
Flv_to_Flx 25489976
Flx_mul 26719570
Flx_shift 27402677
Flx_equal 27589532
mkF2 27661541
Flx_valrem 28464193
Flx_divrem 30450993
Flx_gcd 35035972
Flx_to_ZX_inplace 36546764
Flx_div_by_X_x 36576998
Flx_to_ZX 38383175
Flx_rem 42211543
Flx_eval_powers_pre 48507051
Flx_divrem_basecase 61232572
Flx_normalize 64804204
Flx_to_Flv 66648528
set_Flxq_pre 70731989
Rg_to_Fl 73085393
Flx_add 73802993
Flx_divrem_pre 78664459
Flx_gcd_basecase 85784174
Flx_gcd_pre 87456973
Fl2_norm_pre 97118550
Flx_get_red_pre 98480033
Flx_eval_pre 136141554
Flx_sub 136563450
_Flxq_mul 149600627
ZX_to_Flx 171049084
Flxq_mul_pre 194028444
_Flxq_sqr 267987710
Flxq_sqr_pre 274186098
Flx_sqr_pre 275167688
Flx_sqrspec 275539900
Flx_sqrspec_basecase 275687728
Flx_mulspec_basecase 349339508
Flx_mul_pre 383295289
Flx_mulspec 388999722
Flx_shiftip 633406481
Flx_rem_basecase 801498358
Flx_rem_pre 927206572
get_Flx_red 990138060
Flx_mullimb 1185535493
Flx_renormalize 2171438235
get_Fl_threshold 2328884837
Flx_mullimb_ok 3395406379

Generated by: LCOV version 1.16