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 30862-ea47bd413c) Lines: 2553 2925 87.3 %
Date: 2026-05-05 09:26:54 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 504
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2068
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 3889
Flx_powu_pre 3897
Flxq_pow_table_pre 4392
Flxq_trace 4724
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_s 6567
_Flxq_rand 6572
Flx_FlxM_qmul 7107
gener_Flxq 7201
FlxM_mul2 7278
Flx_is_l_pow 8168
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12214
init_invlaplace 12521
Flx_halve 14026
Flx_halfres_split 20166
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21915
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23106
Flx_invBarrett_Newton 23252
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26381
Flx_Laplace 27460
Flx_composedsum 27705
FlxV_composedsum 28987
Flx_mod_Xn1 31633
FlxV_Flc_mul 34482
Fl_Flxq_log 35573
Flxq_sqrtl_spec_pre 37674
Flxq_sumautsum_msqr 40869
kron_unpack_Flx 42785
Flxq_minpoly 45944
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47278
Flv_inv_indir 52211
kron_pack_Flx_spec 53168
Flx_Newton 54392
Flx_invLaplace 54650
Flxn_div 56617
Flxn_div_pre 56636
ZM_unpack_FlxM_bits 58170
Fl2_sqrt_pre 65848
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69429
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75980
Fl2_sqrtn_pre 76079
FlxM_mul_Kronecker_i 81591
FlxqM_mul_Kronecker 81591
FlxqM_red_pre 81591
Flx_matFrobenius_pre 86557
Flx_Frobenius 86617
Flxq_order 97322
Flxq_autsum_pre 98579
Flx_mulspec_quartmulii 98877
FlxC_to_ZXC 104060
Flv_Flm_polint 104560
Flxq_autsum_sqr 104900
int_to_Flx_quart 109095
Flx_fromNewton 109549
Flxn_expint 109551
Flxq_autsum_mul 112115
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113857
FlxM_pack_ZM_bits 116259
Flx_is_smooth_pre 118427
Flx_extgcd_halfgcd 126133
Flx_is_smooth_squarefree 126628
Flx_invBarrett_basecase 134452
Flx_splitting 147207
Flx_Fl_sub 151827
Flv_invVandermonde 153445
Flx_invBarrett_pre 159004
Flx_inflate 160008
Flxq_log 164217
Flxq_matrix_pow_pre 170651
FlxV_to_Flm 171873
Fl2_inv_pre 197296
Flx_to_int_quartspec 207972
Flxq_sumautsum_pre 210702
Flxn_recip 218103
Flxq_sqrt 230555
Flxq_sqrt_pre 230555
Flxq_powers 232123
FlxqC_red_pre 234855
get_Flxq_star 283451
FlxT_red 293121
Flx_mulspec_mulii_inflate 294063
Flxq_sumautsum_sqr 295253
Z_mod2BIL_Flx 305877
Z_mod2BIL_Flx_2 308807
FlxC_eval_powers_pre 325159
Flxq_inv 335786
Flx_addmulmul 360115
_Flxq_neg 366572
Flx_sqr 370227
_Flxq_add 389834
bounded_order 394028
FlxV_to_FlxX 397987
Flxq_issquare 404606
Flx_deflate 421314
Flx_integXn 423412
Flxq_norm 443243
Fl2_equal1 449866
Flx_to_int_halfspec 468590
Flxq_powu 488494
int_to_Flx_half 507058
Flxq_easylog 519439
Flxn_mulhigh 527674
Flx_blocks 527737
Flx_triple 551294
Flx_eval2BILspec 603329
Flx_divrem_Barrett 609567
FlxV_to_ZXV 610613
Flxq_auttrace_sqr 652521
Flx_diff1 660689
Flx_translate1 663366
Flxq_invsafe 670707
_Fl2_pow 671673
Fl2_pow_pre 671709
Flx_sqrspec_Kronecker 671988
Flx_translate1_basecase 675456
kron_pack_Flx_spec_half 688104
translate_basecase 688621
Flxq_auttrace_mul 779731
Flx_Flxq_eval 791473
Flxq_minpoly_pre 809778
Flv_roots_to_pol 841994
Flx_extgcd 859516
Flx_halfgcd_pre 873331
Flx_subspec 903897
Flx_divrem_Barrettspec 911546
Flxq_pow 933281
monomial_Flx 941471
Flx_mulhigh_i 950298
Flxq_auttrace_pre 960656
Flx_halfgcd_all_i 1088235
Flx_halfgcd_all_pre 1088242
Flx_halfres_basecase 1095488
Flx_halfres_i 1115661
Flxq_div 1167600
Flx_double 1179459
_Flxq_rmul 1461838
Flv_polint 1485469
_Flxq_red 1550928
Rg_to_F2 1715095
Flv_inv 1744745
Flv_producttree 1745950
Flxq_transmul_init 1746642
Flv_inv_i 1756756
Flx_Flv_multieval_tree 1786242
Flx_neg_inplace 1799912
Flx_red 1880442
_Fl2_mul 1924929
Flx_lgrenormalizespec 2148039
RgX_to_Flx 2210279
Flxq_div_pre 2313669
Flx_Flxq_eval_pre 2444998
FlvV_polint_tree 2587639
random_Flx 2646864
Flxq_sqr 2763487
FlxV_to_ZXV_inplace 3034447
Rg_to_Flxq 3465608
Flx_addshift 3768888
ZXT_to_FlxT 3798086
Flx_neg 4175397
Flx_negspec 4175399
Flxq_inv_pre 4183797
Flxq_transmul 4212911
Flx_val 4465841
Flx_resultant 4609852
Flx_mod_Xnm1 4907606
_Fl2_sqr 4912629
Fl2_sqr_pre 4912660
Flxn_mul_pre 5185012
Flx_Fl2_eval_pre 5214706
Flxq_invsafe_pre 5334713
kron_unpack_Flx_bits_narrow 5640811
kron_unpack_Flx_bits_wide 5696982
Flx_extgcd_basecase 6194208
Flx_extgcd_pre 6194208
Flxn_red 6369675
zx_to_Flx 6395874
Flx_recipspec 7300831
Flx_addspec 7339173
Flx_mulspec_Kronecker 7382827
Z_to_Flx 7610127
maxbitcoeffpol 8490669
Flx_is_squarefree 9221253
Flx_Fl_mul 9423068
Flx_Fl_add 9847746
_Flx_mul 11775305
Flx_Fl_mul_to_monic 11865106
Flx_blocks_Flm 12973266
FlxV_to_Flm_lg 12973746
Flx_FlxqV_eval_pre 13172588
Flx_Frobenius_pre 13827538
Flx_resultant_basecase_pre 14476135
Flx_resultant_pre 14478050
Flx_get_red 14516936
Fl2_mul_pre 17093292
Flxq_mul 18080031
Flv_inv_pre_inplace 19363790
Flx_Fl_mul_pre 20215393
Flx_eval 20407557
kron_pack_Flx_spec_bits 21031328
Flv_inv_pre_indir 21090062
Fl_to_Flx 21944955
_Flxq_pow 22299159
Flxq_pow_Frobenius 22306568
_Flxq_one 22457400
Flxq_powers_pre 22458006
Flx_deriv 22905164
_Flxq_powu_i 22942157
Flxq_pow_pre 23355246
Flxq_powu_pre 24196755
Flv_to_Flx 25496635
Flx_equal 26123804
Flx_mul 26762921
Flx_shift 27409193
mkF2 27670460
Flx_valrem 28469732
Flx_divrem 30471574
Flx_gcd 35058839
Flx_div_by_X_x 36567497
Flx_to_ZX_inplace 36584877
Flx_to_ZX 38412442
Flx_rem 42228768
Flx_eval_powers_pre 48510396
Flx_divrem_basecase 61307843
Flx_normalize 64818512
Flx_to_Flv 66676427
set_Flxq_pre 69307247
Rg_to_Fl 73089616
Flx_add 73803340
Flx_divrem_pre 78748922
Flx_gcd_basecase 85859515
Flx_gcd_pre 87525227
Flx_get_red_pre 97067404
Fl2_norm_pre 97118610
Flx_eval_pre 136171366
Flx_sub 136773396
_Flxq_mul 146770584
ZX_to_Flx 171173695
Flxq_mul_pre 191295751
_Flxq_sqr 267174947
Flxq_sqr_pre 273511641
Flx_sqrspec_basecase 273841244
Flx_sqr_pre 274484161
Flx_sqrspec 274639041
Flx_mulspec_basecase 346496363
Flx_mul_pre 380790746
Flx_mulspec 386426269
Flx_shiftip 629161401
Flx_rem_basecase 798228999
Flx_rem_pre 923488923
get_Flx_red 986515368
Flx_mullimb 1185515672
Flx_renormalize 2163701635
get_Fl_threshold 2317353586
Flx_mullimb_ok 3344423523

Generated by: LCOV version 1.16