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 - polarit2.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30573-61accf17c8) Lines: 2270 2514 90.3 %
Date: 2025-12-15 09:22:15 Functions: 215 225 95.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
CX_factor 21
FE_matconcat 259
Flv_factorback 108623
FlxqV_factorback 2499
FpV_factorback 8575671
Fpmul 29352594
Fppow 244474
FqV_factorback 14
Lazard 137815
Lazard2 298314
Q_content 1843633
Q_content_safe 1288051607
Q_content_v 182029156
Q_denom 4106172
Q_denom_safe 252817949
Q_denom_v 55655104
Q_div_to_int 507222
Q_divi_to_int 174916859
Q_divmuli_to_int 11575320
Q_divq_to_int 10407500
Q_factor 21631
Q_factor_limit 13810
Q_gcd 1014177211
Q_mul_to_int 0
Q_muli_to_int 143663127
Q_primitive_part 90181560
Q_primpart 10083867
Q_remove_denom 57274927
Qi_cmp 91
Qi_factor 49
Qi_factor_p 42
Qi_gcd 399
Qi_normal 469
Qi_primpart 49
Qi_primpart_try 70
RX_factor 28
R_to_Q_down 525
R_to_Q_up 525
RgC_settype 272355589
RgM_RgC_type 33053185
RgM_rescale_to_int 4710447
RgM_settype 49229903
RgM_type 830654
RgM_type2 7673179
RgV_type 776747
RgV_type2 203
RgXQ_charpoly 13006
RgXQ_charpoly_FpXQ 14
RgXQ_charpoly_fast 13006
RgXQ_charpoly_i 1228839
RgXQ_factor 252
RgXQ_factor_i 252
RgXQ_inv 135258
RgXQ_inv_FpXQ 12054
RgXQ_inv_FpXQXQ 7
RgXQ_inv_fast 135258
RgXQ_inv_i 848
RgXQ_mul 1542447
RgXQ_mul_FpXQ 274309
RgXQ_mul_FpXQXQ 385
RgXQ_mul_fast 1542448
RgXQ_ratlift 112
RgXQ_sqr 465943
RgXQ_sqr_FpXQ 14
RgXQ_sqr_FpXQXQ 0
RgXQ_sqr_fast 465943
RgXY_factor 259
RgXY_factor_squarefree 273
RgXY_squff 259
RgX_Frobenius_deflate 343
RgX_Rg_mul_i 894052
RgX_Rg_type 6072316
RgX_chinese_coprime 0
RgX_cmbf 6475
RgX_disc 124189
RgX_disc_FpX 42
RgX_disc_FpXQX 28
RgX_disc_fast 124189
RgX_disc_i 413
RgX_extgcd 4970
RgX_extgcd_FpX 133
RgX_extgcd_FpXQX 7
RgX_extgcd_fast 4529
RgX_extgcd_simple 0
RgX_extresultant_FpX 77
RgX_extresultant_fast 1568
RgX_factor 13832
RgX_fix_quadratic 98
RgX_gcd 10415025
RgX_gcd_FpX 111909
RgX_gcd_FpXQX 7
RgX_gcd_FpXk 595
RgX_gcd_QXQX 3003
RgX_gcd_ZXQX 2261
RgX_gcd_fast 10415025
RgX_gcd_simple 0
RgX_halfgcd 0
RgX_halfgcd_all 63
RgX_halfgcd_all_FpX 28
RgX_halfgcd_all_FpXQX 0
RgX_halfgcd_all_fast 63
RgX_halfgcd_all_i 14
RgX_is_irred 11165
RgX_is_irred_i 11165
RgX_liftred 10528
RgX_neg_i 298314
RgX_pseudodenom 271640
RgX_rescale_to_int 37485
RgX_resultant_FpX 28
RgX_resultant_FpXQX 21
RgX_resultant_all 308187
RgX_resultant_sylvester 169893
RgX_settype 661703509
RgX_sturmpart 763
RgX_sylvestermatrix 169893
RgX_type 2474691
RgX_type2 147699808
RgX_type3 1542449
RgX_type_decode 11720504
RgX_type_is_composite 163902573
Rg_type 171962920
ZV_lcm 3577
ZX_content 13146
Z_content 10220801
Z_content_v 2369100
Zi_mul3 896
Zi_rem 448
_lcmii 8145
c_is_rational 3269
c_zero_gcd 1386
caract_const 126
centermod 11245188
centermod_i 14759153
centermodii 89921994
choosesubtype 38354175
choosetype 371538698
cont_gcd 1924962
cont_gcd_gen 2635
cont_gcd_pol 1912233
cont_gcd_pol_i 1912233
cont_gcd_rfrac 10115
content 72566792
deg1_from_roots 157231
factor 62378
factor0 59403
factor_domain 63071
factorback 1485368
factorback2 25479515
fix_lcm 105
fix_pol 343
gbezout 427
gc_gcdext 217
gcd3 6390
gcdext0 427
gcdiq 12797721
gcdmonome 3717
gcdqq 28386201
gdivexact 24015582
gen_cmp_RgXY 385
gen_factorback 34401346
ggcd 27702795
ggcd0 5203644
ghalfgcd 91
ginvmod 35321
glcm 3297
glcm0 2898
inexact 11424
init_resultant 1400754
isinexactall 2198
mul 55750311
must_negate 4368
newtonpoly 28
nextSousResultant 298314
normalized_mul 1721115
normalized_to_RgX 1041352
ok_bloc 434
padic_gcd 1435
pol_approx0 0
poldisc0 4721
polfromroots 56
polisirreducible 11165
polresultant0 504
polresultantext 1463
polresultantext0 1575
polsym 114418
polsym_gen 131834
powi 80766597
primitive_part 2899388
primpart 161
qgcd 154
quadratic_to_RgX 420
random_FpX_monic 112
reduceddiscsmith 7
reductum_lg 892121
rescale_init 30085244
resultant 1400724
resultant2 28
resultant_fast 1400724
rnfcharpoly 224
roots_from_deg1 63895
roots_to_pol 776737
roots_to_pol_FpV 14
roots_to_pol_FqV 7
roots_to_pol_fast 776663
roots_to_pol_r1 264724
row_Q_primpart 63749
s_centermod 0
scalar_bezout 112
scalar_res 7
settype 3819178047
sturmpart 385
sturmpart_i 1148
subres_step 11790
subresext 0
subresext_i 2346
syl_RgC 371755
syl_RgM 169900
sylvestermatrix 7
triv_cont_gcd 3276
vec_Q_primpart 120972
vecprod 10003
zero_bezout 63
zero_extgcd 434
zero_gcd 8258441
zero_gcd2 8879871

Generated by: LCOV version 1.16