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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30764-6b81f1f3fa) Lines: 1881 2002 94.0 % Date: 2026-03-25 09:26:52 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
Leading_is_neg	57628765
Q_to_Fp	226838
Qdivii	143130029
Qdivis	1762560
Qdiviu	151482074
Zp_nosquare_m1	42
_serprec	8187500
addQp	4763009
addRc	310708202
addRq	1302
addTp	7
add_intmod_same	3410725
add_rfrac	3017228
add_rfrac_scal	8823769
add_scal	29398686
add_ser_scal	417278
addqf	77
addsub_frac	40739272
addsub_frac_i	14154023
addsub_polmod	7210
addsub_polmod_scal	13457863
addsub_pp	19974496
conj_i	31552442
conjvec	84
divRc	2893841
divRq	301
divTp	3674
div_T_scal	7293270
div_intmod_same	341537
div_polmod_same	37016
div_rfrac	1187496
div_rfrac_pol	260657
div_rfrac_scal	32435
div_scal_T	15557229
div_scal_pol	14531927
div_scal_rfrac	1052280
div_scal_ser	19096
div_ser	875766
div_ser_scal	1543591
divcR	23425332
divfq	42
divpT	1204910
divpp	13212274
divqf	63
divrunextu	213675891
fix_rfrac	206780
gadd	6246812119
gaddsg	270811653
gconj	390604
gdiv	452878565
gdivgs	13375985
gdivgu	61805579
gdivgunextu	1583803
ginv	38283686
gmul	8958355853
gmul2n	146078801
gmulsg	242559151
gmulug	283938451
gred_rfrac2	39473628
gred_rfrac_simple	57631881
gsqr	1343448045
gsub	2898123584
gsubsg	3267106
inv_polmod	189774
is_ext_qfr	98
kro_quad	35
mkpadic_mod	24594858
mulRc	355396083
mulRq	2387
mulTp	4985915
mul_gen_rfrac	161376
mul_intmod_same	2985103
mul_polmod	2674945
mul_polmod_same	8532791
mul_polmod_scal	3219554
mul_rfrac	7910194
mul_rfrac_scal	10435434
mul_scal	197840837
mul_self_scal	7663146
mul_ser_scal	323974
mulcIR	11893707
mulcc	281558804
mulcxI	15654539
mulcxmI	2985996
mulcxpowIs	5564942
mulpp	17505571
mulqf	28
mulqq	1127
mulrfrac	38072003
pol2ser	6378555
quad_polmod_conj	18403
quad_polmod_mul	5860237
quad_polmod_norm	18403
rfrac_denom_mul_scal	9852085
ser_add	4094149
ser_normalize	7658
setfrac	15036250
sqr_polmod	419392
sqr_ser_part	113907
sqrq	70
sub_intmod_same	1017828
transtype	154217663
utoi_sign	65021169
warn_coercion	126

Generated by: LCOV version 1.16